CN106140242B - A kind of visible-light response type boron nitride modification carbon nitride photocatalyst and its preparation method and application - Google Patents
A kind of visible-light response type boron nitride modification carbon nitride photocatalyst and its preparation method and application Download PDFInfo
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- CN106140242B CN106140242B CN201610521036.3A CN201610521036A CN106140242B CN 106140242 B CN106140242 B CN 106140242B CN 201610521036 A CN201610521036 A CN 201610521036A CN 106140242 B CN106140242 B CN 106140242B
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- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052582 BN Inorganic materials 0.000 title claims abstract description 63
- 230000004044 response Effects 0.000 title claims abstract description 35
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 30
- 230000004048 modification Effects 0.000 title claims abstract description 15
- 238000012986 modification Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004202 carbamide Substances 0.000 claims abstract description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004327 boric acid Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims description 9
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- 238000001035 drying Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 20
- 230000015556 catabolic process Effects 0.000 abstract description 11
- 238000006731 degradation reaction Methods 0.000 abstract description 11
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- 238000001354 calcination Methods 0.000 abstract description 3
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- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 26
- 229940106691 bisphenol a Drugs 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 230000001699 photocatalysis Effects 0.000 description 8
- 238000007146 photocatalysis Methods 0.000 description 7
- 229910021642 ultra pure water Inorganic materials 0.000 description 7
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- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000446313 Lamella Species 0.000 description 2
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- 238000001228 spectrum Methods 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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- 230000004298 light response Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B01J35/39—
-
- 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
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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 visible-light response type boron nitride to modify carbon nitride photocatalyst and its preparation method and application, and the carbonitride of the photochemical catalyst is lamellar structure, and boron nitride is attached to carbonitride sheet surfaces in yarn shape.Preparation method is boron nitride first to be prepared as raw material using urea and boric acid, then convert block-like carbonitride to the carbonitride of stratiform, and then boron nitride is doped into carbonitride by ultrasonic wave added, and finally calcining obtains boron nitride modification carbon nitride photocatalyst.The photochemical catalyst can be used for the organic matters such as persistent pollutant and dyestuff in degradation water.The boron nitride modification carbon nitride photocatalyst of the present invention reduces the band gap of carbonitride to 2.59eV from 2.7eV, enhance utilization rate of the carbon nitride photocatalyst to visible light, and solar energy more fully can be efficiently utilized, this utilizes environmental improvement and green energy resource and is of great significance.
Description
Technical field
The invention belongs to catalysis material technical fields, and in particular to a kind of nitridation boron modification carbon nitride photocatalyst and its
Preparation method and application.
Background technology
Currently, persistent pollutant is increasingly valued by people, bisphenol-A is widely used in daily life, is become
The substance that people frequently encounter.Bisphenol-A belongs to hypotoxicity substance, is a kind of pollutant of simulation female hormone, even if very low
Amount can result in sex premature, sperm count decline, prostate increase the effects that, in addition bisphenol-A also have certain embryotoxicity and
Teratogenesis, hence it is evident that increase cancer morbidity.Bisphenol-A can directly endanger human and livestock health after entering food chain.Traditionally, physics-change
Method, electrochemical process, bioanalysis etc. may serve to carry out the processing of waste water from dyestuff, but with removal efficiency is low, causes
Secondary pollution, costly disadvantage.In view of environmental benefit, it is seen that light degradation dyestuff causes increasingly as a kind of green technology
High attention.
In recent years, conductor photocatalysis material is widely used in fields such as environment, material, the energy, in order to carry
Solar energy is converted into storable electric energy by the utilization ratio of high solar, chemical energy is research topic that the mankind are most interested in
One of.Hydrogen Energy is cleanly and efficiently regenerative resource, has been generally considered a kind of new century ideal green energy resource.Utilize light
Catalysis material carrys out hydrogen manufacturing, converts the solar energy of low-density to Hydrogen Energy.
Carbonitride is more popular in recent years catalysis material, relative to pure TiO2Energy band is relatively low, and wavelength is less than 450nm
When have photoresponse, but carbonitride is still very weak to the absorption of sunlight in visible region, and photoelectron and hole
It is easy to be compound, cause the utilization rate of visible light relatively low.
Invention content
The technical issues of solution：The present invention provides a kind of visible for the low technical problem of the visible light-responded rate of carbonitride
Photoresponse type boron nitride modifies carbon nitride photocatalyst and its preparation method and application, and gained photochemical catalyst is not only for ultraviolet light
Response is generated, while also there is response to visible light.
Technical solution：A kind of visible-light response type boron nitride modification carbon nitride photocatalyst, wherein carbonitride is lamella knot
Structure, boron nitride are attached to carbonitride sheet surfaces in yarn shape.
The preparation method of the visible-light response type boron nitride modification carbon nitride photocatalyst, includes the following steps：
Step 1, boron nitride is added in water, at room temperature 2~4h of ultrasonic disperse, obtains boron nitride dispersion；
Step 2, carbonitride is added in water, at room temperature 3~6h of ultrasonic disperse, obtains carbonitride dispersion liquid；
Step 3, boron nitride dispersion is added dropwise in carbonitride dispersion liquid, is stirred, mixed liquor ultrasonic reaction 0.5~1 is small
When, filtering, cleaning, dry obtained solid；
Step 4, by step 3 obtained solid under nitrogen atmosphere 350 DEG C reaction 2h to get.
Further, boron nitride is prepared as raw material using boric acid and urea in step 1.Specific method is：By boric acid
1 is pressed with urea:20 ratio adds in water, then mixed liquor is put into 18 in 60~80 DEG C of baking ovens~for 24 hours, obtain white mixing
Object；Then by white mixture in the tube furnace full of nitrogen 900 DEG C heating 5~7h, by obtained final product grind it is standby
With.
Further, the mass volume ratio of boron nitride and water is 0.3~1.2mg in step 1：36~40mL.
Further, the mass volume ratio of carbonitride and water is 80~100mg in step 2：36~40mL.
Further, the mass ratio of boron nitride and carbonitride is 0.3~1.2 in step 3：100.
Further, ultrasonic power is 70~120w in step 1, step 2, step 3.
Further, drying temperature is 60~100 DEG C in step 3, the time is 8~12h.
Application of the visible-light response type boron nitride modification carbon nitride photocatalyst in water-treatment technology field.
Advantageous effect：Compared with prior art, the present invention its remarkable advantage is：
1. compensate for the disadvantage that carbon nitride photocatalyst band gap is wide, solar energy utilization ratio is low, by the band gap of carbonitride from
2.7eV is reduced to 2.59eV, enhances utilization rate of the carbon nitride photocatalyst to visible light；
Under visible light there is good photocatalysis to live 2. visible-light response type boron nitride modifies carbon nitride photocatalyst
Property, and solar energy more fully can be efficiently utilized, this utilizes environmental improvement and green energy resource and is of great significance；
3. using conventional urea as reactant, raw material is cheap and easy to get, preparation process is simple and practicable, while the side of preparation
Method is environmentally friendly, does not generate poisonous and hazardous by-product；
4. short preparation period, stability of material is good.
Description of the drawings
Fig. 1 is the SEM figures that visible-light response type boron nitride prepared by embodiment 1 modifies carbon nitride photocatalyst；
Fig. 2 is the DRS figures that visible-light response type boron nitride prepared by embodiment 2 modifies carbon nitride photocatalyst；
Fig. 3 is that visible-light response type boron nitride modification carbon nitride photocatalyst prepared by embodiment 2 is mixed in different boron nitride
To the degradation effect figure of bisphenol-A under miscellaneous amount；
Fig. 4 is that visible-light response type boron nitride prepared by embodiment 1 modifies carbon nitride photocatalyst and blocky carbonitride is glimmering
Light spectrum comparison diagram；
Fig. 5 is that visible-light response type boron nitride prepared by embodiment 1 modifies carbon nitride photocatalyst degradation bisphenol A catalyst
Recycling figure.
Specific implementation mode
The present invention provides a kind of visible-light response type boron nitride modification carbon nitride photocatalyst, wherein carbonitride is lamella
Structure, boron nitride is attached to carbonitride sheet surfaces in yarn shape, and dispersibility is preferably, is conducive to suction of the carbonitride for light
It receives.Preparation method is boron nitride first to be prepared as raw material using urea and boric acid, then convert block-like carbonitride to stratiform
Carbonitride, then boron nitride is doped into carbonitride by ultrasonic wave added, finally calcining obtain boron nitride modification carbonitride
Photochemical catalyst.
The present invention first converts block-like carbonitride to using ultrasound the carbonitride of stratiform using cheap urea as raw material,
Then the modification nitridation of visible-light response type boron nitride is prepared through ultrasonic wave added, precipitation, separation, washing, drying, calcining step
Carbon photochemical catalyst, ultrasonic wave added has actively impact not only for carbonitride stripping, but also introduces oxygen defect, will nitrogenize boron doping
Into carbonitride, using the quantum limit effect and skin effect of boron nitride, graphite phase carbon nitride photocatalysis absorption spectrum is made to open up
Width is reduced the band gap of boron nitride to 2.59eV to visible region, so that it is generated response not only for ultraviolet light, while to visible
Light also has response.This method preparation manipulation is simple, and the material prepared can make full use of solar energy, can effectively solve the problem that
The problem of environmental pollution.
Boron nitride have improve electron conductivity ability, doping it is less with doping excessively can all significantly affect it is light-catalysed
Degradation effect.When a small amount of doping boron nitride, hence it is evident that improve catalyst visible light region the absorptivity to light, but when doping
When boron nitride excess, boron nitride can largely cover the active site above graphite phase carbon nitride, the photoelectron above active site
The pollutant haptoreaction that can not be above adsorbed with catalyst, causes photocatalysis effect to be deteriorated.Boron nitride and nitridation in the present invention
The mass ratio of carbon is 0.3~1.2：100.
The visible-light response type boron nitride modification carbon nitride photocatalyst of the present invention can be used for the dirt of the duration in degradation water
Contaminate the organic matters such as object and dyestuff.
Embodiment 1
Prepare boron nitride：Boric acid is with urea with mass ratio 1:20 ratio is dissolved in 40mL ultra-pure waters, is put into baking oven 80 DEG C
It is 12 hours dry, obtain the mixture of white.Then by white mixture, 900 DEG C of heating 5 are small in the tube furnace full of nitrogen
When, obtained final product is ground spare.
Boron nitride modification carbonitride is mixed in preparation：The boron nitride of 0.9mg is scattered in the ultra-pure water of 36mL, at room temperature ultrasound 4
Hour, obtain boron nitride dispersion；The carbonitride of 99.1mg is added in the ultra-pure water of 36mL, at room temperature ultrasound 4 hours, is obtained
Carbonitride dispersion liquid；Boron nitride dispersion is added dropwise to carbonitride dispersion liquid, ultrasonic disperse 1 hour dropwise；Mixed liquor filters, institute
It obtains after filter residue is cleaned with ultra-pure water in 60 DEG C of drying for standby；Quartz boat equipped with drying sample is put into tube furnace and is added for 350 DEG C
Heat 2 hours, obtains 0.9% BN@C of visible-light response type3N4Photochemical catalyst.
Using scanning electron microscope to the 0.9%BN@C of visible-light response type obtained3N4Photochemical catalyst carries out Electronic Speculum and sweeps
It retouches, as can be seen from Figure 1 the 0.9%BN@C of visible-light response type obtained3N4Photochemical catalyst is nanoparticle, and there is a small amount of yarn on surface
Shape BN packages.
Using full-automatic Fluorescence Spectrometer to the BN@C of visible-light response type obtained3N4Photochemical catalyst is characterized, from figure
2 can be seen that the BN@C of visible-light response type obtained3N4Photochemical catalyst is relative to pure C3N4Under excitation wavelength, generation swashs
It is lower to send out peak, therefore is more conducive to photoelectron and is detached with hole, contributes to the degradation for pollutant, this, which is boron nitride, has
It is effectively conducted the effect of photoelectron ability.
Embodiment 2
The preparation of boron nitride is the same as embodiment 1.
Prepare the carbonitride for mixing different content boron nitride：The boron nitride point of 0.3mg, 0.6mg, 0.9mg and 1.2mg are taken respectively
It dissipates in the ultra-pure water of 36mL, at room temperature ultrasound 4h, obtains boron nitride dispersion；Respectively by 99.7mg, 99.4mg, 99.1mg and
The carbonitride of 98.8mg is added in the ultra-pure water of 36mL, at room temperature ultrasound 4 hours, obtains carbonitride dispersion liquid；It respectively will nitridation
Boron dispersion liquid is added dropwise to carbonitride dispersion liquid, ultrasonic disperse 1 hour dropwise；Mixed liquor filters, the handy ultra-pure water solid cleaning of institute
Afterwards in 60 DEG C of drying for standby；Quartz boat equipped with drying sample is put into tube furnace and is heated 2 hours for 350 DEG C, boron nitride is made
It is respectively the BN@C of 0.3%, 0.6%, 0.9% and 1.2% visible-light response type with carbonitride mass ratio3N4Photochemical catalyst is remembered respectively
For：0.3%BN@C3N4、0.6%BN@C3N4、0.9%BN@C3N4、1.2%BN@C3N4。
Using UV-vis DRS spectrometer to the BN@C of visible-light response type obtained3N4Photochemical catalyst carries out Electronic Speculum
Scanning, as can be seen from Figure 3 relative to the BN@C of blocky carbonitride visible-light response type3N4Photochemical catalyst is in visible region to light
Absorption be remarkably reinforced, therefore generate more photoelectrons and detached with hole, contribute to the degradation for pollutant.Doped graphite phase
Boron nitride is more, and material is remarkably reinforced the absorbability of light in full spectrum, this illustrates the carbonitride pair for adulterating boron nitride
Light-use is obviously enhanced, and the luminous energy absorbed is more, and photoelectron-hole is to generating more, the sky that can utilize
Cave is more with photoelectron, and hole generates hydroxyl radical free radical in turn with photoelectron, and hole itself can also aoxidize organic contamination
Object.
Embodiment 3
Oxidation processes bisphenol-A solution is used for using the photochemical catalyst that embodiment 2 is prepared.
The specific steps are：
Step 1：The accurate bisphenol-A for weighing 10mg, is dissolved in ultra-pure water, and be settled to 1000mL, and 10mg/L is made
Bisphenol-A solution；
Step 2：It is accurately pipetted with pipette in the bisphenol-A solution to reactor that 40mL steps 1 obtain, and 32mg is added
0.3% BN@C3N4, 0.6%BN@C3N4, 0.9%BN@C3N4With 1.2%BN@C3N4, reaction system is controlled at 25 DEG C, first at half-light
Adsorption equilibrium half an hour reaches adsorption/desorption balance；
Step 3：Using 300w xenon lamps as visible light source, it is anti-that step 2 acquired solution is carried out to photocatalytic degradation under light illumination
It answers, at interval of 5~30min time samplings, with the content of high-efficient liquid phase color spectrometry bisphenol-A, and calculates its conversion ratio.As a result see
Fig. 4.
As can be seen from Figure 4 when adulterating the boron nitride of 0.9wt%, photocatalysis effect is best, and doping is less and adulterates
Amount can all significantly affect light-catalysed degradation effect.BN has the ability for improving electron conductivity, when a small amount of doped graphite phase BN,
Catalyst is significantly improved in the absorptivity to light of visible light region, but when adulterating BN excess, BN can largely cover nitridation
Active site above carbon, the pollutant haptoreaction that the photoelectron above active site can not above be adsorbed with catalyst, leads
Photocatalysis effect is caused to be deteriorated.
Embodiment 4
By the boron nitride in embodiment 1/azotized carbon nano composite material（0.9% BN@C3N4）Centrifugal drying is scattered in
It in the bisphenol-A of a concentration of 10mg/L of 40mL, is put into light reaction instrument and is protected from light stirring half an hour, reach catalyst and bisphenol-A absorption-
Parsing balance carries out light degradation experiment, is so repeated twice to obtain photocatalysis as shown in Figure 5 using the xenon lamp of 300w as light source
The repeated curve graph of degradation, as can be seen from the figure photocatalytic activity remain unchanged.
Claims (8)
1. a kind of visible-light response type boron nitride modifies carbon nitride photocatalyst, it is characterised in that：Carbonitride is lamellar structure, nitrogen
Change boron and is attached to carbonitride sheet surfaces in yarn shape；
The preparation method of visible-light response type boron nitride modification carbon nitride photocatalyst includes the following steps：
Step 1, boron nitride is added in water, at room temperature 2~4h of ultrasonic disperse, obtains boron nitride dispersion；
Step 2, carbonitride is added in water, at room temperature 3~6h of ultrasonic disperse, obtains carbonitride dispersion liquid；
Step 3, boron nitride dispersion is added dropwise in carbonitride dispersion liquid, is stirred, mixed liquor ultrasonic reaction 0.5~1 hour, mistake
Filter, cleaning, dry obtained solid；
Step 4, by step 3 obtained solid under nitrogen atmosphere 350 DEG C reaction 2h to get.
2. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 1
Middle boron nitride is prepared as raw material using boric acid and urea.
3. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 1
The mass volume ratio of middle boron nitride and water is 0.3~1.2mg：36~40mL.
4. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 2
The mass volume ratio of middle carbonitride and water is 80~100mg：36~40mL.
5. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 3
The mass ratio of middle boron nitride and carbonitride is 0.3~1.2：100.
6. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 1,
Ultrasonic power is 70~120w in step 2, step 3.
7. visible-light response type boron nitride modifies carbon nitride photocatalyst according to claim 1, it is characterised in that：Step 3
Middle drying temperature is 60~100 DEG C, the time is 8~12h.
8. visible-light response type boron nitride described in claim 1 modifies carbon nitride photocatalyst in water-treatment technology field
Using.
Priority Applications (1)
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| CN108187712B (en) * | 2016-12-08 | 2021-02-02 | 中国科学院大连化学物理研究所 | Non-metal boron nitride catalyst, preparation and application thereof, and regeneration method |
| CN106732727B (en) * | 2016-12-26 | 2019-05-03 | 湖南大学 | Hexagonal boron nitride modification graphitization nitridation carbon composite photocatalyst and its preparation method and application |
| CN107376968B (en) * | 2017-06-30 | 2019-08-16 | 湖南大学 | Tungstic acid/double Z shaped photochemical catalyst of carbonitride/bismuth oxide and its preparation method and application |
| CN109019754A (en) * | 2018-07-12 | 2018-12-18 | 昆明理工大学 | A kind of preparation method of chlorination modified by silver boron nitride composite photo-catalyst |
| CN112240898B (en) * | 2019-07-17 | 2021-08-27 | 湖南大学 | Photoelectrochemical aptamer sensor and preparation method and application thereof |
| CN110721658B (en) * | 2019-10-15 | 2022-06-10 | 江苏索普（集团）有限公司 | Preparation method and application of hexagonal boron nitride-graphite phase carbon nitride intercalation composite material |
| CN110961133B (en) * | 2019-11-29 | 2022-07-22 | 江苏大学 | Nonmetal BCN/g-C3N4Van der Waals heterojunction photocatalyst and preparation method and application thereof |
| CN113718285A (en) * | 2021-08-18 | 2021-11-30 | 武汉工程大学 | Iron-doped transition metal-based oxide electrode material and preparation method and application thereof |
| CN114314738B (en) * | 2021-12-29 | 2022-11-11 | 河海大学 | Water pollution treatment device with day and night rhythm |
| CN114345394B (en) * | 2022-01-27 | 2023-07-14 | 中原工学院 | Visible light response boron nitride/carbon nitride composite photocatalyst and preparation method and application thereof |
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