CN107973342A - A kind of ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt and preparation method thereof - Google Patents
A kind of ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt and preparation method thereof Download PDFInfo
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- CN107973342A CN107973342A CN201711418910.1A CN201711418910A CN107973342A CN 107973342 A CN107973342 A CN 107973342A CN 201711418910 A CN201711418910 A CN 201711418910A CN 107973342 A CN107973342 A CN 107973342A
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
- C01B3/042—Decomposition of water
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- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a kind of ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt and preparation method thereof, it is characterized in that, the thickness of titanium dioxide nano-belts is 2~5nm, width is 10~20nm, crystal form is monocrystalline anatase, exposure (010) crystal face；Carbon coating layer is graphitization carbon-coating, and thickness is about 1 5nm.Its preparation process includes：A) by P25, strong base solution and (or) smaller ligand carry out hydro-thermal reaction.After reaction, it is acidified with the acid solution containing smaller ligand, deionized water is washed, obtained ultra-thin metatitanic acid nanobelt；B) under an inert gas, ultra-thin metatitanic acid nanobelt is heat-treated, that is, carbon coating ultra-thin exposure (010) crystal face monocrystalline TiO is made2Nanobelt.The preparation method of the present invention has the advantages such as preparation process is simple, production cost is low.Carbon is prepared using the method for the present invention and is modified TiO2Nanobelt has excellent photocatalytic activity, can be widely applied to the fields such as photolysis water hydrogen, degradation of contaminant.
Description
Technical field
The present invention relates to a kind of monodimension nanometer material technology of preparing scope, more particularly to a kind of ultra-thin exposure of carbon coating
(010) crystal face single crystal titanium dioxide nanobelt and preparation method.
Background technology
Nano-titanium dioxide is a kind of multifunctional semiconductor material, is passed in photocatalysis, dye-sensitized solar cells, gas
The field such as sensor and nano-device suffers from being widely applied.The pattern of nano-titanium dioxide has many kinds.Research shows, nanometer
The pattern of titanium dioxide has its performance very important influence (ZL 2010101333235.x；ZL 201110028734.7；
Energy Environ.Sci.,2014,7:1700).Any vertical cross-section of 1-dimention nano band is rectangle, and crystal structure has
Anisotropy, inside are preferable monocrystalline line style flake structures without crystal boundary and defect.In addition, 1-dimention nano carrying material also can
The recycling of zero-dimension nano particle system is effectively overcome to reuse the problems such as difficult.Therefore, oxygen is reported from professor Wang Zhonglin in 2001
Since changing zinc nanobelt, one-dimensional strip material receives the extensive concern of people.
In recent years, the methods of people are by hydro-thermal method, electrochemical process, template, microemulsion method, successfully prepares one-dimensional two
TiOx nano band.Chinese patent (number of patent application CN 105347393A) prepares thickness only 2 using smaller ligand hydro-thermal method
The ultra-thin titanium dioxide nano-belts of~5nm.Since the thickness of the ultra-thin titanium dioxide nano-belts is very thin, photo-generated carrier migration
Distance to catalyst surface is very short, therefore, it is possible to effectively avoid the body of photogenerated charge pair mutually compound.But due to titanium dioxide
Titanium is a kind of wide bandgap semiconductor materials (3.0~3.2eV), is only had in ultraviolet light range (account for solar energy 4% or so)
Photocatalytic activity, and solar energy is concentrated mainly on the visible-range of 400~800nm.Therefore, how to improve one-dimensional ultra-thin
The visible light response activity of titanium dioxide nano-belts, and its photo-generated carrier separative efficiency is further improved, for such material
The practical application of material is significant.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of ultra-thin exposure of carbon coating (010) crystal face list
Crystal titanium dioxide nanobelt.The invention solves another technical problem be to provide the ultra-thin exposure of a kind of carbon coating (010) crystalline substance
The preparation method of face single crystal titanium dioxide nanobelt.
The purpose of the present invention is what is realized in the following way：A kind of ultra-thin exposure of carbon coating (010) crystal face monocrystalline dioxy
Change titanium nanobelt, the thickness of titanium dioxide nano-belts is 2~5nm, and width is 10~20nm, exposure (010) crystal face, and crystal form is single
Brilliant anatase；Carbon coating layer is graphitization carbon-coating, and thickness is about 1~5nm.
A kind of preparation method of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt, it is characterised in that bag
Include following steps：
A) by nano-titanium dioxide, strong base solution and (or) smaller ligand is uniformly mixed, be subsequently poured into hydrothermal reaction kettle
Middle carry out hydro-thermal reaction.After reaction, cooled to room temperature, incline lye, then sour molten containing smaller ligand with (1)
Liquid acidifying, washed to about neutrality repeatedly with the deionized water solution of (2) containing smaller ligand again, and surface smaller ligand is made and repaiies
The ultra-thin metatitanic acid nanobelt of decorations；
B) under inert gas shielding, by the ultra-thin metatitanic acid nanobelt of the surface smaller ligand modification prepared in 300
~700 DEG C of 0.5~10h of heat treatment, that is, be made carbon coating ultra-thin exposure (010) crystal face single crystal titanium dioxide nanobelt.
The highly basic is sodium hydroxide, one kind in potassium hydroxide or its combination；The smaller ligand is phenol, benzene first
One kind or its combination in alcohol, benzyl carbinol, phenylpropanol；The concentration of the strong base solution is 5~10mol/L；The hydro-thermal reaction
The mass ratio of nano-titanium dioxide and smaller ligand is 1：1~1：10；The hydrothermal temperature is 130~180 DEG C, reaction
Time is 10~72h；The acid solution of (1) containing smaller ligand refers to the hydrochloric acid or nitric acid of 0.1mol/L, smaller ligand
Concentration be 0.01~0.15mol/L；The concentration of the deionized water solution of (2) containing smaller ligand for 0.01~
0.15mol/L；The inert gas refers to nitrogen, one kind of argon gas or its combination；The heat treatment is heat radiation heating, microwave
One kind of heating or its combination.
The present invention has substantive distinguishing features and marked improvement：1. the ultra-thin exposure of carbon coating (010) monocrystalline two of the present invention
TiOx nano band has excellent Driven by Solar Energy photocatalytic activity.Test result shows, in the AM of 1 sun intensity
Under the irradiation of 1.5G simulated solar irradiations, the photocatalytic water hydrogen-producing speed of the ultra-thin exposure of carbon coating (010) single crystal titanium dioxide nanobelt is high
Up to 5.5 times of 42mmol/h/g photochemical catalysts, about unmodified ultra thin single crystalline titanium dioxide nano-belts (7.6mmol/h/g)；2.
Using the preparation method of the ultra-thin exposure of carbon coating of the present invention (010) single crystal titanium dioxide nanobelt, ultra-thin metatitanic acid is utilized
The smaller ligand of nanometer belt surface can effectively simplify the preparation process of such photochemical catalyst, reach reduction life as carbon source
Produce the purpose of cost.In addition, the thickness of carbon coating layer can also be carried out by adjusting the concentration of acid solution and rinsing solution small molecular
Control.Therefore, the ultra-thin exposure of carbon coating provided by the present invention (010) titanium dioxide nano-belts and preparation method thereof are in photocatalytic water
Hydrogen manufacturing, solar energy sensitizing dyestuff battery, photocatalysis water body purification, air purification, gas sensor, self-cleaning material, antibacterial disappear
Poison etc. has a good application prospect.
Brief description of the drawings
The transmitted electron of the ultra-thin metatitanic acid nanobelt of surface smaller ligand modification prepared by Fig. 1 embodiment of the present invention 3 is shown
Micro mirror figure (TEM).
The transmission of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 2 embodiment of the present invention 3
Electron microscope picture (TEM).
The high score of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 3 embodiment of the present invention 3
Distinguish transmission electron microscope figure (HRTEM).
The high score of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 4 embodiment of the present invention 3
Distinguish the Fourier transform figure (FFT) of transmission electron microscope figure (Fig. 3).
The ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt side prepared by Fig. 5 embodiment of the present invention 3 is high
Resolution Transmission Electron microscope figure (HRTEM).
The Raman of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 6 embodiment of the present invention 3
Spectrogram (Raman).
The ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 7 embodiment of the present invention 3 is at 1
Under the AM 1.5G simulated solar irradiations irradiation of sun intensity, the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt
Photocatalytic water H2-producing capacity.
Embodiment
The technical solution of invention is further described below by way of specific embodiment.
Embodiment 1：
By 1.5g TiO2Powder, 1.5g phenmethylols are uniformly mixed with 90ml 10M NaOH solutions, are then transferred to tetrafluoro
In the hydrothermal reaction kettle of ethene liner, after being placed in 130 DEG C of baking oven reaction 72h, cooled to room temperature, lye in kettle is poured out,
Then white product is soaked into 5h with the 0.1M HCl solutions of the benzyl carbinol containing 0.15M, then with 0.15M benzyl carbinol deionized water solutions
Fully wash the metatitanic acid nanobelt up to the modification of surface phenmethylol；Then by the metatitanic acid nanometer of prepared surface benzyl carbinol modification
Band, under high-purity argon gas protection, is heat-treated 3h, up to the ultra-thin exposure of carbon coating (010) crystal face by heat radiation heating at 400 DEG C
Single crystal titanium dioxide nanobelt.This nanometer of bandwidth about 10nm, thickness about 2nm, carbon layers having thicknesses are about 1nm.
Embodiment 2：
By 1.5g TiO2Powder, 10g benzyl carbinols are uniformly mixed with 90ml 5M NaOH solutions, are then transferred to tetrafluoro second
In the hydrothermal reaction kettle of alkene liner, after being placed in 180 DEG C of baking oven reaction 10h, cooled to room temperature, lye in kettle is poured out, so
The white product 0.1M HCl solutions of the phenylpropanol containing 0.01M are soaked into 5h afterwards, then are filled with 0.01M phenylpropanol deionized water solutions
Divide the metatitanic acid nanobelt washed up to the modification of surface phenylpropanol；Then by the metatitanic acid nanometer of prepared surface phenylpropanol modification
Band, under high pure nitrogen protection, is heat-treated 2h, up to the ultra-thin exposure of carbon coating (010) crystal face by heat radiation heating at 700 DEG C
Single crystal titanium dioxide nanobelt.This nanometer of bandwidth about 15nm, thickness about 3nm, carbon layers having thicknesses are about 2nm.
Embodiment 3：
By 1.5g TiO2Powder, 10g phenmethylols are uniformly mixed with 90ml 10M NaOH solutions, are then transferred to tetrafluoro second
In the hydrothermal reaction kettle of alkene liner, after being placed in 150 DEG C of baking oven reaction 24h, cooled to room temperature, lye in kettle is poured out, so
The white product 0.1M HCl solutions of the phenmethylol containing 0.05M are soaked into 5h afterwards, then are filled with 0.05M phenmethylol deionized water solutions
Divide the metatitanic acid nanobelt washed up to the modification of surface phenmethylol；Then by the metatitanic acid nanometer of prepared surface phenmethylol modification
Band, under high pure nitrogen protection, is heat-treated 2h, up to the ultra-thin exposure of carbon coating (010) crystal face list by microwave heating at 600 DEG C
Crystal titanium dioxide nanobelt.This nanometer of bandwidth about 20nm, thickness about 3.5nm, carbon layers having thicknesses are about 3nm.
Embodiment 4：
By 1.5g TiO2Powder, 15g phenmethylols are uniformly mixed with 90ml 10M KOH solutions, are then transferred to tetrafluoro second
In the hydrothermal reaction kettle of alkene liner, after being placed in 150 DEG C of baking oven reaction 24h, cooled to room temperature, lye in kettle is poured out, so
The white product 0.1M HCl solutions of the phenmethylol containing 0.01M are soaked into 5h afterwards, then are filled with 0.01M phenmethylol deionized water solutions
Divide the metatitanic acid nanobelt washed up to the modification of surface phenmethylol；Then by the metatitanic acid nanometer of prepared surface phenmethylol modification
Band, under high pure nitrogen protection, is heat-treated 2h, up to the ultra-thin exposure of carbon coating (010) crystal face list by microwave heating at 600 DEG C
Crystal titanium dioxide nanobelt.This nanometer of bandwidth about 15nm, thickness about 2nm, carbon layers having thicknesses are about 5nm.
Embodiment 5：
By 1.5g TiO2Powder, 5.0g phenol are uniformly mixed with 90ml 5M NaOH solutions, are then transferred to tetrafluoroethene
In the hydrothermal reaction kettle of liner, after being placed in 180 DEG C of baking oven reaction 72h, cooled to room temperature, lye in kettle is poured out, then
By the 0.1M HNO of white product phenol containing 0.1M3Solution soaks 5h, then is fully washed with 0.1M phenol deionized water solution
Up to the metatitanic acid nanobelt of surface phenol modification；Then the metatitanic acid nanobelt prepared surface phenol modified, in high-purity argon
Under gas shielded, 10h is heat-treated at 300 DEG C by microwave heating, up to the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide
Nanobelt.This nanometer of bandwidth about 10nm, thickness about 3nm, carbon layers having thicknesses are about 2nm.
Embodiment 6：
By 1.5g TiO2Powder, 5.0g phenylpropanols are uniformly mixed with 90ml 10M NaOH solutions, are then transferred to tetrafluoro
In the hydrothermal reaction kettle of ethene liner, after being placed in 150 DEG C of baking oven reaction 24h, cooled to room temperature, lye in kettle is poured out,
Then by the 0.1M HNO of white product phenylpropanol containing 0.15M3Solution soaks 5h, then water-soluble with 0.15M phenylpropanol deionizations
Liquid fully washs the metatitanic acid nanobelt up to the modification of surface phenylpropanol；Then the metatitanic acid by prepared surface phenylpropanol modification is received
Rice band, under high pure nitrogen protection, 2h is heat-treated by heat radiation heating at 700 DEG C, brilliant up to the ultra-thin exposure of carbon coating (010)
Face single crystal titanium dioxide nanobelt.This nanometer of bandwidth about 20nm, thickness about 2nm, carbon layers having thicknesses are about 1nm.
Comparative example
By 1.5g TiO2Powder, 10g phenmethylols are uniformly mixed with 90ml 10M NaOH solutions, are then transferred to tetrafluoro second
In the hydrothermal reaction kettle of alkene liner, after being placed in 150 DEG C of baking oven reaction 24h, cooled to room temperature, lye in kettle is poured out, so
White product 0.1M HCl solutions are soaked into 5h afterwards, then are fully washed up to metatitanic acid nanobelt with deionized water solution；Then
By prepared metatitanic acid nanobelt, under air atmosphere, 2h is heat-treated at 600 DEG C by microwave heating, up to ultra thin single crystalline two
TiOx nano band.
The transmission electron microscope of the metatitanic acid nanobelt of surface smaller ligand modification prepared by Fig. 1 embodiment of the present invention 3
Scheme (TEM).From figure as it can be seen that the pattern of prepared metatitanic acid nanobelt is highly uniform, its surface should be there are uniform amorphous layer
Phenmethylol ligand clad.In follow-up heat treatment process, the phenmethylol clad is as coated modified carbon carbon source.
The transmission of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 2 embodiment of the present invention 3
Electron microscope picture (TEM).As can be seen from Fig., the ultra-thin exposure of prepared carbon coating (010) crystal face single crystal titanium dioxide is received
The pattern of rice band is uniform, and length is up to a few micrometers.
The high-resolution of the ultra-thin exposure of carbon coating (010) single crystal titanium dioxide nanobelt prepared by Fig. 3 embodiment of the present invention 3 is saturating
Penetrate electron microscope picture (HRTEM).It was found from figure, the ultra-thin titanium dioxide nano-belts of carbon coating are monocrystalline anatase and exposure
(010) crystal face, nanometer bandwidth are about 10-20nm.
The high score of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 4 embodiment of the present invention 3
Distinguish Fourier transform (FFT) figure of transmission electron microscope figure (Fig. 3).It was found from diffraction spot, the exposure of carbon coating ultra thin single crystalline
(010) crystal form of crystal face titanium dioxide nano-belts is monocrystalline anatase and exposure (010) crystal face.
The high-resolution transmitted electron of carbon coating ultra thin single crystalline titanium dioxide nano-belts prepared by Fig. 5 embodiment of the present invention 3 is shown
Micro mirror figure (HRTEM).It was found from figure, the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanometer tape thickness is about a 2nm left sides
Right, carbon layers having thicknesses are about 1nm.
The Raman of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 6 embodiment of the present invention 3
Spectrogram (Raman).1596cm-1The Raman shift peak at place is the feature G of graphitic carbon with characteristic displacement peak, 1345cm-1For carbon
Feature D bands characteristic displacement peak, the material with carbon-coated surface layer for illustrating single crystal titanium dioxide nanobelt is graphitization carbon-coating.
The ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt prepared by Fig. 7 embodiment of the present invention 3 is at 1
Under the AM 1.5G simulated solar irradiations irradiation of sun intensity, the photodissociation aquatic products hydrogen of carbon coating ultra thin single crystalline titanium dioxide nano-belts
Energy.Test result shows that the photocatalytic water hydrogen-producing speed of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt is up to
42mmol/h/g photochemical catalysts, and under the same conditions, the production hydrogen speed of ultra thin single crystalline titanium dioxide nano-belts prepared by comparative example
Rate only about 7.6mmol/h/g catalyst.The photocatalytic water hydrogen-producing speed of carbon coating ultra thin single crystalline titanium dioxide nano-belts does not change about
Property 5.5 times, show coated modified carbon can significantly improve ultra thin single crystalline titanium dioxide nano-belts Driven by Solar Energy photocatalysis live
Property.
Claims (9)
- A kind of 1. ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt, it is characterised in that：The thickness of the nanobelt For 2~5nm, width is 10~20nm, exposure (010) crystal face；The thickness of carbon coating layer is 1~5nm.
- 2. a kind of ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 1, its feature exist In：The crystal form of titanium dioxide is monocrystalline anatase.
- 3. a kind of ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 1, its feature exist In：Carbon coating layer is graphitization carbon-coating.
- A kind of 4. preparation side of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 1 Method, it is characterised in that comprise the following steps：A) by nano-titanium dioxide, strong base solution and (or) smaller ligand is uniformly mixed, be subsequently poured into hydrothermal reaction kettle into Row hydro-thermal reaction.After reaction, cooled to room temperature, incline lye, then with the acid solution acid of (1) containing smaller ligand Change, washed repeatedly to about neutrality with the deionized water solution of (2) containing smaller ligand again, the modification of surface smaller ligand is made Ultra-thin metatitanic acid nanobelt；B) under inert gas shielding, by the ultra-thin metatitanic acid nanobelt of the surface smaller ligand modification prepared in 300~700 DEG C heat treatment 0.5~10h, that is, be made carbon coating ultra-thin exposure (010) crystal face single crystal titanium dioxide nanobelt.
- A kind of 5. preparation side of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 4 Method, it is characterised in that：The highly basic is sodium hydroxide, one kind in potassium hydroxide or its combination；The smaller ligand is benzene One kind or its combination in phenol, phenmethylol, benzyl carbinol, phenylpropanol.
- A kind of 6. preparation side of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 4 Method, it is characterised in that：The concentration of the strong base solution is 5~10mol/L；The hydro-thermal reaction nano-titanium dioxide and small molecule The mass ratio of ligand is 1：1~1：10.
- A kind of 7. preparation side of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 4 Method, it is characterised in that：The hydrothermal temperature is 130~180 DEG C, and the reaction time is 10~72h.
- 8. a kind of preparation method of the ultra-thin exposure of carbon coating (010) single crystal titanium dioxide nanobelt as claimed in claim 4, its It is characterized in that：The acid solution of (1) containing smaller ligand refers to the hydrochloric acid or nitric acid of 0.1mol/L, the concentration of smaller ligand For 0.01~0.15mol/L；The concentration of the deionized water solution of (2) containing smaller ligand is 0.01~0.15mol/L.
- A kind of 9. preparation side of the ultra-thin exposure of carbon coating (010) crystal face single crystal titanium dioxide nanobelt as claimed in claim 3 Method, it is characterised in that：The inert gas refers to nitrogen, one kind of argon gas or its combination；It is described heat treatment for heat radiation heating, One kind of microwave heating or its combination.
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| CN108906017A (en) * | 2018-06-27 | 2018-11-30 | 江苏弗瑞仕环保科技有限公司 | The preparation method of catalysis material for air cleaning |
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| CN102107850A (en) * | 2011-01-27 | 2011-06-29 | 湘潭大学 | Method for preparing nuclear-shell-structured rutile monocrystal titanium dioxide nanowire array with surface-cladding carbon layer |
| CN103626225A (en) * | 2013-10-25 | 2014-03-12 | 河南大学 | Anatase titanium dioxide nanocrystal containing single-electron-trapped oxygen vacancies and with exposed {001} face and preparation method thereof |
| CN104030348A (en) * | 2014-05-14 | 2014-09-10 | 浙江大学 | Preparation method for titanium dioxide nano-belt |
| CN105347389A (en) * | 2015-11-11 | 2016-02-24 | 湘潭大学 | Ultra-thin titanate nanoribbons exposing (010) crystal face and preparation method thereof |
| CN105347393A (en) * | 2015-11-11 | 2016-02-24 | 湘潭大学 | Anatase titanium dioxide nanoribbons exposing {010} crystal face and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108906017A (en) * | 2018-06-27 | 2018-11-30 | 江苏弗瑞仕环保科技有限公司 | The preparation method of catalysis material for air cleaning |
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