CN106238097B - A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications - Google Patents
A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications Download PDFInfo
- Publication number
- CN106238097B CN106238097B CN201610604763.6A CN201610604763A CN106238097B CN 106238097 B CN106238097 B CN 106238097B CN 201610604763 A CN201610604763 A CN 201610604763A CN 106238097 B CN106238097 B CN 106238097B
- Authority
- CN
- China
- Prior art keywords
- tio
- single crystal
- directions
- butoxy
- crystal hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000013078 crystal Substances 0.000 title claims abstract description 73
- 239000002110 nanocone Substances 0.000 title claims abstract description 71
- 239000000463 material Substances 0.000 title claims abstract description 69
- 125000004106 butoxy group Chemical group [*]OC([H])([H])C([H])([H])C(C([H])([H])[H])([H])[H] 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 51
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000012986 modification Methods 0.000 claims abstract description 43
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 230000004048 modification Effects 0.000 claims abstract description 20
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 7
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 6
- 230000001476 alcoholic effect Effects 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 235000019441 ethanol Nutrition 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 abstract description 14
- 229940043267 rhodamine b Drugs 0.000 abstract description 14
- 239000003054 catalyst Substances 0.000 abstract description 9
- 239000000975 dye Substances 0.000 abstract description 9
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 7
- 230000005693 optoelectronics Effects 0.000 abstract description 6
- 239000007791 liquid phase Substances 0.000 abstract description 3
- 238000010189 synthetic method Methods 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 229910052724 xenon Inorganic materials 0.000 description 4
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 230000005518 electrochemistry Effects 0.000 description 3
- NAQMVNRVTILPCV-UHFFFAOYSA-N hexamethylene diamine Natural products NCCCCCCN NAQMVNRVTILPCV-UHFFFAOYSA-N 0.000 description 3
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 238000000026 X-ray photoelectron spectrum Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 238000002329 infrared spectrum Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002186 photoelectron spectrum Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical compound FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0201—Oxygen-containing compounds
- B01J31/0211—Oxygen-containing compounds with a metal-oxygen link
- B01J31/0212—Alkoxylates
-
- B01J35/39—
-
- B01J35/50—
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The present invention provides a kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications.Preparation method is：By single crystal hollow TiO2Cubic nanocone materials are scattered in ethylene glycol, add dropwise butyl titanate, are stirred evenly, and dispersion liquid is obtained；Heating reaction, product washing is dry, obtains the TiO of butoxy modification2Single crystal hollow four directions nanocone materials.Compared with prior art, the present invention utilizes low temperature liquid phase synthetic method, by butoxy modification to single crystal hollow TiO2On cubic nanocone materials surface, method is simple, at low cost；The active height of photochemical catalyst for organic dyestuff rhodamine B visible light photocatalytic degradation, stability are good；There is provided has photoelectric conversion efficiency high for the material of opto-electronic conversion.
Description
Technical field
The present invention relates to preparation method of nano material and Environmental Chemistries and optical electro-chemistry cross-application field, and in particular to one
The TiO of kind butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications.
Background technology
The residual of organic dyestuff causes serious pollution to environment in trade effluent, and semiconductor light-catalyst uses energy
Remaining organic dyestuff in enough effectively degradation sewage.The TiO in semiconductor light-catalyst2It is a kind of material of people's further investigation
Material, has many advantages, such as that nontoxic, inexpensive, photocatalytic activity is high, stability is good, is widely used to various photocatalysis fields, such as
Photocatalyzed Hydrogen Production, carbonaceous solar energy fuel, environment remediation and biomedical applications.
However TiO2It is wide bandgap semiconductor materials (3.0-3.2eV), ultraviolet light can only be absorbed, can hardly be absorbed visible
Light, and the visible light for reaching earth surface accounts about the 43% of total solar spectrum, ultraviolet light only accounts for the 4% of total solar spectrum, from
And greatly limit TiO2Potential as sunlight photocatalysis agent.
Therefore, people are to TiO2Functionalization extends its absorption region to sunlight, makes the arrival of its photocatalytic activity can
Light-exposed region.Such as：Nonmetal doping, transition metal coupling, narrow gap semiconductor coupling, noble metal decorated, carbon modification and table
Face adsorbent (or complex) sensitization etc..TiO2The photogenerated charge transfer row of the substance extreme influence interface zone of surface modification
For to influence photocatalytic activity.
Invention content
The object of the present invention is to provide a kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials and its system
Preparation Method, using low temperature liquid phase synthetic method, by butoxy modification to TiO2Single crystal hollow four directions nanocone materials surface, method
Simply, at low cost.
The present invention also provides a kind of TiO of butoxy modification2The application of single crystal hollow four directions nanocone materials, including can
See photocatalytically degradating organic dye and visible light opto-electronic conversion application.
A kind of TiO of butoxy modification provided by the invention2The preparation method of single crystal hollow four directions nanocone materials, including
Following steps：
(1) by TiO2Single crystal hollow four directions nanocone materials are scattered in alcoholic solvent, are added dropwise butyl titanate, are stirred
It mixes uniformly, obtains dispersion liquid；
(2) dispersion liquid heating reaction obtained by step (1), is cooled to room temperature, centrifuges, and product washing is dry, obtains fourth
The TiO of oxygroup modification2Single crystal hollow four directions nanocone materials.
TiO in step (1)2The preparation method of single crystal hollow four directions nanocone materials is：
A, after mixing 1,6- hexamethylene diamines with hexamethylene, Ti (OC are added4H9)4；Then deionized water is added to be stirred,
Obtain suspension；
B, suspension heated sealed reaction obtained by step A, cooling, centrifugation, washing of precipitate, drying obtain TiO2Monocrystalline is empty
Heart four directions nanocone materials.
Further, 1,6- hexamethylene diamines, hexamethylene, Ti (OC in step A4H9)4Volume ratio with deionized water is 3-8:
15-40:0.5-2:0.5-3；It is 8-15min to be stirred the time.
Further, reaction condition is heated in step B is：8-24h is reacted at 160-200 DEG C；The heating reaction is poly-
It is carried out in the stainless steel cauldron of tetrafluoroethene liner；The washing is：It is first washed with deionized 3-5 times, then with anhydrous second
Alcohol washs 3-5 times；The drying is dry 6-12h in 55-60 DEG C of vacuum drying chamber；
TiO in step (1)2Single crystal hollow four directions nanocone materials are 0.1-0.4 with butyl titanate amount ratio:1g/mL.
Further, TiO in step (1)2The amount ratio of single crystal hollow four directions nanocone materials and alcoholic solvent is 0.5-2:
1mg/mL；The alcoholic solvent is selected from absolute ethyl alcohol or ethylene glycol.
It is 50-80 DEG C of temperature, reaction time 10-40min that reaction condition is heated described in step (2).
Further, it is washed described in step (2) and is：It is first washed with deionized 3-5 times, then 3- is washed with absolute ethyl alcohol
5 times；The drying is：Dry 6-12h in 55-60 DEG C of vacuum drying chamber.
A kind of TiO of butoxy modification provided by the invention2Single crystal hollow four directions nanocone materials, using above method system
Standby, form is to bore long average out to 200nm, and mass content is modified on the hollow quadratic poppet surface of cone mouth diameter average out to 100nm
2.2%-3.1% butoxy radicals.
A kind of TiO of butoxy modification provided by the invention2Single crystal hollow four directions nanocone materials are as visible light catalytic
Degradation application, specially organic dyestuff visible light photocatalytic degradation application；Especially the visible light catalytic of rhodamine B (RhB) is dropped
Solution.
The present invention also provides a kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials visible light photoelectricity turns
Change application.
The visible light photocatalytic degradation application as organic dyestuff rhodamine B (RhB) is specially：
The TiO of 10mg butoxy modification prepared by the present invention2It is dense that single crystal hollow four directions nanocone materials are added to 100mL
Degree is after ultrasonic 1-2min, to be placed in stirring 1h at dark in 0.01mmol/L RhB solution, catalyst surface is made to reach absorption-
Desorption balances.Later, (add optical filter λ using 300W xenon lamps>420nm) irradiate.3mL is taken to try with centrifuge tube every 20min
Sample takes supernatant after centrifugation (10000rpm, 2min), and the absorption spectrum of solution is measured using ultraviolet-visible spectrophotometer.
The concentration of RhB is determined by the characteristic absorption peak at 554nm.
The visible light opto-electronic conversion application is specially：The TiO of butoxy modification prepared by the present invention2Single crystal hollow
Cubic nanocone materials 5mg ultrasonic disperses in 1mL deionized waters, take 0.01mL dispersant liquid drops area be 0.28cm2's
On FTO glass.Later, which is put into drying box, dry 30min at a temperature of 80 DEG C.Optical electro-chemistry test uses
The three-electrode system of standard, to be loaded with the FTO glass of catalyst as working electrode, platinum filament and Ag/AgCl electrodes are respectively to assist
Electrode and reference electrode.With the Na of a concentration of 0.2mol/L2SO4With 10-5The RhB mixed solutions of mol/L are electrolyte.Photoelectricity
Conversion is tested by electrochemical workstation (CHI660B), (adds optical filter λ using 300W xenon lamps>420nm) it is used as light source.Scanning
Voltage range：- 0.1~+0.8V sweeps speed：50mV·s-1。
Compared with prior art, the present invention is first by liquid interface chemical synthesis, in nonpolar solvent hexamethylene and
Micro water and 1 in 6- hexamethylene diamine mixed liquors, utilizes Ti (OC4H9)4Slowly hydrolysis obtains TiO2Single crystal hollow four directions nanometer
Bore material structure.Ti (OC are added after 1,6- hexamethylene diamines, hexamethylene are mixed4H9)4, deionized water is added later, otherwise
Ti(OC4H9)4Fast hydrolyzing can not obtain specific pattern.Ti(OC4H9) on the interface that a small amount of water and a large amount of hexamethylenes are formed
Slowly hydrolysis, 1,6- hexamethylene diamine is in TiO2{ 101 } preferred orientation on family of crystal planes forms the TiO of a large amount of (101) face exposures2Monocrystalline is empty
Heart four directions nanocone structures.Then heated sealed is reacted, and under specific temperature pressure, is regulated and controled physical-chemical reaction, is generated target
Product.The anatase TiO of preparation2Single crystal hollow four directions nanocone materials have largely { 101 } face of exposure and big specific surface
Product；Then the present invention is by simple cryochemistry liquid phase method, in TiO2Single crystal hollow four directions nanocone materials surface modification fourth
Oxygroup obtains the TiO of butoxy modification2Single crystal hollow four directions nanocone materials.By controlling temperature and time, product is obtained most
Good pattern and yield, it is simple, at low cost that preparation process has the advantages that prepared by environmental-friendly and technique.The fourth oxygen being prepared
The TiO of base modification2Single crystal hollow four directions nanocone materials are used for the photochemical catalyst of organic dyestuff rhodamine B visible light photocatalytic degradation
Active height, stability are good；Material for opto-electronic conversion has photoelectric conversion efficiency high.
Description of the drawings
Fig. 1 is the TiO of butoxy modification prepared by embodiment 12The X-ray powder of single crystal hollow four directions nanocone materials
Diffraction (XRD) figure；
Fig. 2 is the TiO of butoxy modification prepared by embodiment 12The scanning electron of single crystal hollow four directions nanocone materials is aobvious
Micro mirror (SEM) figure；
Fig. 3 is the TiO of butoxy modification prepared by embodiment 12The Fourier transformation of single crystal hollow four directions nanocone materials
Infrared spectrum (FTIR) figure；
Fig. 4 is the TiO of butoxy modification prepared by embodiment 12The O1s high-resolution of single crystal hollow four directions nanocone materials
XPS spectrum figure, while providing pure TiO2The result of single crystal hollow four directions nanocone materials is in order to comparing；
Fig. 5 is the TiO of 2 butoxy of embodiment modification2Single crystal hollow four directions nanocone materials Visible Light Induced Photocatalytic RhB's is ultraviolet
Abosrption spectrogram；
Fig. 6 is the TiO of 2 butoxy of embodiment modification2Single crystal hollow four directions nanocone materials visible light photocatalytic degradation RhB's
Concentration changes with time curve, while providing pure TiO2Single crystal hollow four directions nanocone materials, P25 (business TiO2) and blank
The result of (not plus catalyst) is tested in order to compare；
Fig. 7 is the TiO of 3 butoxy of embodiment modification2Single crystal hollow four directions nanocone materials visible light lower linear scanning volt
Pacify curve, while providing pure TiO2Single crystal hollow four directions nanocone materials and P25 (business TiO2) result in order to comparing；
Fig. 8 is the TiO of 3 butoxy of embodiment modification2Initial potential under the nanocone materials visible light of single crystal hollow four directions
When 0.3V, transient current density changes with time, while providing pure TiO2Single crystal hollow four directions nanocone materials and P25
(business TiO2) result in order to comparing.
Specific implementation mode
Embodiment 1
A kind of TiO of butoxy modification2The preparation method of single crystal hollow four directions nanocone materials, includes the following steps：
(1) TiO for taking 40mg pure2Single crystal hollow four directions nanocone materials are added in 30mL ethylene glycol, ultrasonic 10min dispersions
Uniformly, 0.2mL butyl titanates are added dropwise, stirs evenly, obtains dispersion liquid.
(2) above-mentioned dispersion liquid is heated and is reacted, temperature 60 C, reaction time 30min naturally cools to room after reaction
Temperature.Product is collected by centrifugation, and is first washed with deionized 3-5 times, then is washed 3-5 times with absolute ethyl alcohol, is finally placed in 60 DEG C of vacuum
Dry 6-12h in drying box.
The TiO2The preparation method of single crystal hollow four directions nanocone materials is：
(1) by 5mL1,6- hexamethylene diamines are added in 25mL hexamethylenes, and 1mL Ti (OC are then added4H9)4, add 1mL and go
Ionized water persistently stirs 10min, obtains white suspension；
(2) and then above-mentioned white suspension is transferred in the stainless steel cauldron of 50mL polytetrafluoroethyllining linings, by high pressure
Kettle, which is sealed at 180 DEG C, reacts 12h, and after reaction, cooled to room temperature, white sediment is collected by centrifugation and with first using
Deionized water is washed 3-5 times, then is washed 3-5 times with absolute ethyl alcohol, is placed in 60 DEG C of vacuum drying chambers dry 6-12h, is obtained TiO2
Single crystal hollow four directions nanocone materials.
The structure and morphology characterization of product：
Discriminating materials are carried out to 1 products therefrom of embodiment with X-ray powder diffraction instrument, the results are shown in Figure 1.All
Diffraction maximum and cubic phase anatase TiO2Fit like a glove (JCPDS standard cards number：71-1166), show that butoxy modification does not have
Change product anatase tetragonal phase TiO2Object phase.
The TiO that butoxy is modified with scanning electron microscope2Single crystal hollow four directions nanocone carries out morphology analysis, as a result
As shown in Figure 2.Show that prepared sample is uniform in size, bores long average out to 200nm, the sky of cone mouth diameter average out to 100nm
Heart four directions nanocone structures.Product is analyzed with Fourier transform infrared spectroscopy, the results are shown in Figure 3 (provides simultaneously
Pure TiO2The infrared spectrum of single crystal hollow four directions nanocone is to compare).In 1454cm-1And 1380cm-1The absorption peak at place with
CH3CH2CH2CH2The bending vibration of middle C-H keys is related；In 1120cm-1And 1040cm-1The peak of wave band is flexible with C-O groups
It vibrates related.Therefore, Fourier transform infrared spectroscopy is confirmed in TiO2There are butoxy for single crystal hollow four directions poppet surface.It is penetrated with X
Photoelectron spectra analyzes product, the results are shown in Figure 4 for the XPS spectrum of O1s (while providing pure TiO2Monocrystalline is empty
The result of heart four directions nanocone is to compare).There are three combine energy, the first two peak difference at 529.3,531.8 and 533.0eV
Corresponding lattice O2-, hydroxyl, the last one peak can belong to oxygen in C-O keys, the oxygen of chemisorption or remaining water.In fourth
The TiO of oxygroup modification2In the nanocone spectrogram of single crystal hollow four directions, the last one peak is more prominent, and auxiliary is confirmed in TiO2Single crystal hollow
The presence of cubic nanometer poppet surface butoxy.The TiO that butoxy is modified with burning element analytic approach2Single crystal hollow four directions nanometer
Coning row is analyzed, the results showed that product contains C 1.71% and H 0.43%, and calculating butoxy content with C elements is
2.6%.TiO is proved from another angle2There are butoxy for single crystal hollow four directions nanometer poppet surface.
Embodiment 2
A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials visible light photocatalytic degradation organic dyestuff is answered
With.
The TiO that the butoxy of above-mentioned preparation is modified2It is a concentration of that single crystal hollow four directions nanocone takes 10mg that 100mL is added
In 0.01mmol/LRhB solution, after ultrasonic 1-2min, it is placed in stirring 1h at dark, so that catalyst surface is reached absorption-desorption attached
Balance.Later, (optical filter is added to make λ using 300W xenon lamps>420nm) irradiate.3mL samples are taken with centrifuge tube every 5min, are centrifuged
(10000rpm, 2min) afterwards, takes supernatant, and solution is measured using ultraviolet-visible spectrophotometer (Shimadzu UV-2550)
Absorption spectrum.The concentration of RhB is determined by the characteristic absorption peak at 554nm.The UV absorption of photocatalytic degradation RhB results
Spectrogram is as shown in figure 5, degradation process concentration versus time curve (while providing pure TiO as shown in Figure 62Single crystal hollow
Cubic nanocone materials and P25 (business TiO2) photocatalysis result to compare).After visible light shines 2h, sieve in solution
Red bright B degradation rates reach 84.5%.
Embodiment 3
A kind of TiO of butoxy modification2The nanocone visible light opto-electronic conversion application of single crystal hollow four directions.
The TiO of butoxy modification prepared by the present invention2Single crystal hollow four directions nanocone materials 5mg ultrasonic disperses are in 1mL
In deionized water, take 0.01mL dispersant liquid drops area be 0.28cm2FTO glass on.Later, which is put into dry
In dry case, dry 30min at a temperature of 80 DEG C.Optical electro-chemistry test uses the three-electrode system of standard, to be loaded with the FTO of catalyst
Glass is working electrode, and platinum filament and Ag/AgCl electrodes are respectively auxiliary electrode and reference electrode.With a concentration of 0.2mol/L's
Na2SO4With 10-5The RhB mixed solutions of mol/L are electrolyte.Opto-electronic conversion is tested by electrochemical workstation (CHI660B),
(add optical filter λ using 300W xenon lamps>420nm) it is used as light source.Scanning voltage range：- 0.1~+0.8V sweeps speed：50mV·
s-1.Visible light lower linear scans volt-ampere curve, the results are shown in Figure 7 (while providing pure TiO2Single crystal hollow four directions nanocone
Material and P25 (business TiO2) result to make comparisons).The TiO of butoxy modification2Single crystal hollow four directions nanocone materials system
Standby electrode produces significant photoelectric current.When initial potential 0.3V, it is seen that transient current density changes with time under light, knot
Fruit (while providing pure TiO as shown in Figure 82Single crystal hollow four directions nanocone materials and P25 (business TiO2) result to make
Compare).The TiO of butoxy modification2Electrode prepared by single crystal hollow four directions nanocone materials presents visible light exposure powerful
Instantaneous photocurrent response.Obviously, TiO2Its unique electronic structure of the butoxy of single crystal hollow four directions nanocone adsorption
The ability that surface Ti-O groups capture photo-excited electron from the colored dyes of excitation is improved, the compound of charge carrier is reduced,
Promote visible light photocatalysis active and photoelectric conversion efficiency.
Claims (6)
1. a kind of TiO of butoxy modification2The preparation method of single crystal hollow four directions nanocone materials, which is characterized in that the preparation
Method includes the following steps：
（1）By single crystal hollow TiO2Cubic nanocone materials are scattered in alcoholic solvent, add dropwise butyl titanate, and stirring is equal
It is even, obtain dispersion liquid；
（2）Step（1）The heating reaction of gained dispersion liquid, is cooled to room temperature, centrifuges, and product washing is dry, obtains butoxy
The TiO of modification2Single crystal hollow four directions nanocone materials；
Step（1）Middle TiO2The preparation method of single crystal hollow four directions nanocone materials is：
A, by 5 mL1, after 6- hexamethylene diamines are mixed with 25 mL hexamethylenes, 1 mL Ti (OC are added4H9)4；Then be added 1 mL go from
Sub- water is stirred, and obtains suspension；
B, suspension heated sealed obtained by step A is reacted, and 12 h is reacted at 180 DEG C, cooling, centrifugation, washing of precipitate, drying obtain
To TiO2Single crystal hollow four directions nanocone materials；
Step（2）Described in heating reaction condition be 50-80 DEG C of temperature, reaction time 10-40 min.
2. the TiO of butoxy modification according to claim 12The preparation method of single crystal hollow four directions nanocone materials, it is special
Sign is, step（1）Middle TiO2Single crystal hollow four directions nanocone materials are 0.1-0.4 with butyl titanate amount ratio: 1 g/
mL。
3. the TiO of butoxy modification according to claim 1 or 22The preparation method of single crystal hollow four directions nanocone materials,
It is characterized in that, step（1）Middle TiO2The amount ratio of single crystal hollow four directions nanocone materials and alcohol is 0.5-2: 1 mg/ mL；
The alcoholic solvent is selected from absolute ethyl alcohol or ethylene glycol.
4. a kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, which is characterized in that appointed using claim 1-3
Prepared by the method described in one, the TiO of the butoxy modification2Single crystal hollow four directions nanocone materials form is to bore long average out to
200nm, cone mouth diameter average out to 100nm modify 2.2%-3.1% butoxy radicals on hollow quadratic poppet surface.
5. a kind of TiO of the butoxy modification described in claim 42Single crystal hollow four directions nanocone materials are dropped in visible light catalytic
Solve organic matter application.
6. a kind of TiO of the butoxy modification described in claim 42The visible light photoelectricity of single crystal hollow four directions nanocone materials turns
Change application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604763.6A CN106238097B (en) | 2016-07-28 | 2016-07-28 | A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610604763.6A CN106238097B (en) | 2016-07-28 | 2016-07-28 | A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106238097A CN106238097A (en) | 2016-12-21 |
| CN106238097B true CN106238097B (en) | 2018-10-16 |
Family
ID=57604139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610604763.6A Active CN106238097B (en) | 2016-07-28 | 2016-07-28 | A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106238097B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411033A1 (en) * | 2002-10-02 | 2004-04-21 | Sumitomo Chemical Company, Limited | Method for producing titanium oxide |
| CN101209413A (en) * | 2006-12-31 | 2008-07-02 | 明道管理学院 | Titanium dioxide photo-catalytic and manufacturing method thereof |
| CN102181929A (en) * | 2011-04-20 | 2011-09-14 | 上海师范大学 | Process for synthesizing TiO2 mesoporous single crystals |
| CN103058275A (en) * | 2013-01-07 | 2013-04-24 | 中国科学院合肥物质科学研究院 | Rutile crystal form titanium oxide having hierarchical structure, and preparation method and use thereof |
| CN104843779A (en) * | 2015-04-29 | 2015-08-19 | 浙江大学 | Hollow spherical rutile titanium dioxide mesocrystal and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009101640A1 (en) * | 2008-02-11 | 2009-08-20 | Daunia Wind Srl | Process for the preparation of titanium dioxide with nanometric dimensions and controlled shape |
-
2016
- 2016-07-28 CN CN201610604763.6A patent/CN106238097B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1411033A1 (en) * | 2002-10-02 | 2004-04-21 | Sumitomo Chemical Company, Limited | Method for producing titanium oxide |
| CN101209413A (en) * | 2006-12-31 | 2008-07-02 | 明道管理学院 | Titanium dioxide photo-catalytic and manufacturing method thereof |
| CN102181929A (en) * | 2011-04-20 | 2011-09-14 | 上海师范大学 | Process for synthesizing TiO2 mesoporous single crystals |
| CN103058275A (en) * | 2013-01-07 | 2013-04-24 | 中国科学院合肥物质科学研究院 | Rutile crystal form titanium oxide having hierarchical structure, and preparation method and use thereof |
| CN104843779A (en) * | 2015-04-29 | 2015-08-19 | 浙江大学 | Hollow spherical rutile titanium dioxide mesocrystal and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106238097A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Lin et al. | Sulfur-doped g-C3N4 nanosheets for photocatalysis: Z-scheme water splitting and decreased biofouling | |
| Wang et al. | Defect-mediated Z-scheme BiO2-x/Bi2O2. 75 photocatalyst for full spectrum solar-driven organic dyes degradation | |
| Muhmood et al. | Under vacuum synthesis of type-I heterojunction between red phosphorus and graphene like carbon nitride with enhanced catalytic, electrochemical and charge separation ability for photodegradation of an acute toxicity category-III compound | |
| CN106076364B (en) | A kind of efficient CdS-CdIn2S4The preparation method of superstructure photochemical catalyst | |
| Wang et al. | Enhanced separation of photogenerated charge carriers and catalytic properties of ZnO-MnO2 composites by microwave and photothermal effect | |
| Zhao et al. | Synthesis of heterojunction photocatalysts composed of Ag 2 S quantum dots combined with Bi 4 Ti 3 O 12 nanosheets for the degradation of dyes | |
| CN107670674B (en) | The indium sulfide material and its preparation method and application of rare earth element codope | |
| CN101829555A (en) | Method for preparing titanium dioxide/mesoporous carbon composite photocatalyst by electron beam irradiation | |
| e Silva et al. | Effect of Cu (BDC-NH2) MOF deposited on Cu/Cu2O electrode and its better performance in photoelectrocatalytic reduction of CO2 | |
| Ullah et al. | Comparative investigation of photocatalytic degradation of toluene on nitrogen doped Ta2O5 and Nb2O5 nanoparticles | |
| CN106587166B (en) | A kind of iron oxide mesomorphic nano-particle and its synthetic method and methods for using them | |
| Dong et al. | Construction of a novel N-doped oxygen vacancy-rich TiO2 N-TiO2− X/g-C3N4 S-scheme heterostructure for visible light driven photocatalytic degradation of 2, 4-dinitrophenylhydrazine | |
| CN105344343B (en) | A kind of preparation method of visible light-responded carbon-doped nano titanium deoxid catalyst | |
| Zhang et al. | Preparation of sensitized ZnS and its photocatalytic activity under visible light irradiation | |
| Zhao et al. | S-Scheme BaTiO3/TiO2 heterojunctions: Piezophotocatalytic degradation of norfloxacin | |
| CN107486213A (en) | A kind of hollow BiVO4The preparation method of micron film photochemical catalyst | |
| Fu et al. | A polydiacetylene-based smart cellulose aerogel functionalized by ZnO/MoS2 heterojunction for simultaneous visual detection and photocatalytic degradation of gaseous VOCs | |
| Zhou et al. | In situ oxidation of ethylene glycol coupled with Bi2O3 epitaxial growth to prepare Bi2O3/BiOCOOH heterojunctions with oxygen vacancies for efficient photocatalytic lignin degradation | |
| Jiao et al. | Facile formation of silver nanoparticles as plasmonic photocatalysts for hydrogen production | |
| CN104128197A (en) | Method for preparing nitrogen-doped titanium dioxide photocatalyst through electron beam irradiation | |
| Zhao et al. | Novel Bi2S3/Bi2WO6 nanomaterials with 2D/3D spatial structure stably degrade veterinary antibiotics under visible light | |
| CN106238097B (en) | A kind of TiO of butoxy modification2Single crystal hollow four directions nanocone materials, preparation method and applications | |
| CN105148945A (en) | Hydro-thermal synthesis method for molybdenum-sulphur co-doped mesoporous nano titanium dioxide visible-light-driven photocatalyst | |
| Bansal et al. | Apparatus-dependent sol-gel synthesis of TiO2 nanoparticles for dye-sensitized solar cells | |
| CN105749983A (en) | Meso-tetra(4-methoxyphenyl)copper porphyrin/Bi2WO6 compound photocatalyst and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |