CN109364902A - A kind of preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst - Google Patents
A kind of preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst Download PDFInfo
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- CN109364902A CN109364902A CN201811200266.5A CN201811200266A CN109364902A CN 109364902 A CN109364902 A CN 109364902A CN 201811200266 A CN201811200266 A CN 201811200266A CN 109364902 A CN109364902 A CN 109364902A
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- titanium dioxide
- ethyl alcohol
- dioxide optical
- optical catalyst
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000003054 catalyst Substances 0.000 title claims abstract description 46
- 239000002048 multi walled nanotube Substances 0.000 title claims abstract description 40
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 27
- 230000003287 optical effect Effects 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 80
- 235000019441 ethanol Nutrition 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000243 solution Substances 0.000 claims abstract description 26
- 239000011259 mixed solution Substances 0.000 claims abstract description 25
- 238000013019 agitation Methods 0.000 claims abstract description 15
- 239000012153 distilled water Substances 0.000 claims abstract description 15
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 13
- 239000010935 stainless steel Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 23
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 14
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000002041 carbon nanotube Substances 0.000 claims description 7
- 229910021393 carbon nanotube Inorganic materials 0.000 claims description 7
- 239000000654 additive Substances 0.000 claims 3
- 230000000996 additive effect Effects 0.000 claims 3
- 230000002378 acidificating effect Effects 0.000 claims 2
- 125000002015 acyclic group Chemical group 0.000 claims 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 238000000227 grinding Methods 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract description 13
- 230000001699 photocatalysis Effects 0.000 abstract description 12
- 238000007146 photocatalysis Methods 0.000 abstract description 12
- 239000002114 nanocomposite Substances 0.000 abstract description 3
- 239000002105 nanoparticle Substances 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- STZCRXQWRGQSJD-UHFFFAOYSA-M sodium;4-[[4-(dimethylamino)phenyl]diazenyl]benzenesulfonate Chemical compound [Na+].C1=CC(N(C)C)=CC=C1N=NC1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-UHFFFAOYSA-M 0.000 description 10
- 229910017604 nitric acid Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 2
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 2
- 229940012189 methyl orange Drugs 0.000 description 2
- 239000001048 orange dye Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
Classifications
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- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The invention discloses a kind of preparation methods of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst, belong to nanocomposite catalyst field.It the steps include: that the multi-walled carbon nanotube by 0.15g carboxylated is placed in 10ml ethyl alcohol and 0.8-6.8ml butyl titanate, the HNO of 0.02~7.5ml be added3Solution (2M), magnetic agitation 5min, ultrasonic 20min, then 10ml ethyl alcohol and 50ml distilled water are added in magnetic agitation, ultrasonic 20min pours into mixed solution in closed stainless steel cauldron, magnetic agitation is heated to react at 120 DEG C~180 DEG C, and cooling is precipitated.It is washed repeatedly with distilled water and ethyl alcohol, obtains multi-walled carbon nanotube/titanium dioxide optical catalyst of photocatalysis performance enhancing.Preparation process of the present invention is simple, and nano particle is uniform, and the ultraviolet light and sunlight catalytic capability of product are all improved significantly.
Description
Technical field
The present invention relates to the preparation methods of nanocomposite photochemical catalyst, refer specifically to a kind of carboxylated multi-wall carbon nano-tube
Pipe/titanium deoxide catalyst (fMWNTs/TiO2) preparation method, resulting catalyst is mainly used in ultraviolet light and sunlight
Decline solution methyl orange dye.
Background technique
TiO2It is N-shaped wide band gap semiconducter photochemical catalyst, when by ultraviolet excitation, it absorbs the energy for being greater than its band gap
Amount, triggering valence-band electrons are energized into conduction band, and hole is generated in valence band, then generate charge carrier, i.e. electrons and holes, move
Photocatalyst surface is moved on to cause to chemically react.The partial size of its photocatalysis performance and photochemical catalyst, crystallinity and crystal structure etc.
Factor is related.Due to TiO2Only being led to it by excitation under uv irradiation, transfer efficiency is low under visible light, therefore, exploitation
It is a kind of can be by the TiO of excited by visible light2Photochemical catalyst becomes critically important, to realize the bigger feasible of its application under minimal condition
Property.It is TiO since carbon nanotube can conduct electronics and have high surface area and high-adsorption-capacity2It is good with photocatalyst
Good dopant and carrier.Carbon nanotube is cooperateed with by delay electronics-hole-recombination improves TiO2Photocatalytic activity, can also be with
The preferably carbon nano-tube/titanic oxide nano composite catalyst of control form and the various different structure forms of offer.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation sides of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst
Method.By the method prepare photochemical catalyst, titanium dioxide granule carbon nano tube surface Load Balanced and particle size it is uniform,
Ultraviolet light and sunlight catalytic capability significantly improve.The technical scheme of the present invention is realized as follows:
A kind of preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst, includes the following steps:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 0.8~6.8ml butyl titanate, is then added
The HNO of 0.02~7.5ml3Solution (2M) adjusts pH value of solution to 0.5-4, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
120 DEG C of -180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
Compared with prior art, the method have the advantages that: the present invention uses functionalized multi-wall carbonnanotubes, and addition contains
Titanium compound carries out hydrothermal synthesis, and a step generates anatase titanium dioxide in a high pressure reaction kettle, obtains with combining by force
Multi-walled carbon nanotube/titanium dioxide optical catalyst.Since carbon nanotube can conduct electronics and have high surface area and high absorption
Capacity, it can make TiO2Photoresponse extend to visible light region, and increase the contact area of composite material and methyl orange dye,
Further promote the ultraviolet light and sunlight catalytic efficiency of catalyst.And preparation process of the present invention is simple, nano particle is uniform, institute
With low in raw material price, have wide practical use.
Specific embodiment
In order to further appreciate that the present invention, specific embodiment is given below, and the present invention will be described in detail, but protection of the invention
Range should not be limited by the examples.
Embodiment 1:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 0.8ml butyl titanate, is then added 7.5ml's
HNO3Solution (2M) adjusts pH value of solution to 0.9, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 75.87% and 58.28%.
Case study on implementation 2:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 7.5ml's
HNO3Solution (2M) adjusts pH value of solution to 0.9, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 82.91% and 62.59%.
Case study on implementation 3:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 4ml butyl titanate, is then added 7.5ml's
HNO3Solution (2M) adjusts pH value of solution to 0.9, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 78.16% and 45.81%.
Case study on implementation 4:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 6.8ml butyl titanate, is then added 7.5ml's
HNO3Solution (2M) adjusts pH value of solution to 0.9, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 69.53% and 32.05%.
Case study on implementation 5:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, the HNO of 1ml is then added3
Solution (2M) adjusts pH value of solution to 1.97, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 91.17% and 67.38%.
Case study on implementation 6:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 0.05ml's
HNO3Solution (2M) adjusts pH value of solution to 2.84, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 93.66% and 83.02%.
Case study on implementation 7:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 0.02ml's
HNO3Solution (2M) adjusts pH value of solution to 3.63, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
180 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 91.65% and 78.57%.
Case study on implementation 8:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 0.02ml's
HNO3Solution (2M) adjusts pH value of solution to 1.97, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
It is heated to 12O DEG C of progress hydro-thermal reaction 9h, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 93.67% and 79.92%.
Case study on implementation 9:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 0.02ml's
HNO3Solution (2M) adjusts pH value of solution to 1.97, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
150 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 95.02% and 83.96%.
Case study on implementation 10:
(1) 0.15g multi-walled carbon nanotube is added in 10ml ethyl alcohol and 2ml butyl titanate, is then added 0.02ml's
HNO3Solution (2M) adjusts pH value of solution to 1.97, stirs simultaneously ultrasonic disperse.
(2) under stirring, addition 10ml ethyl alcohol and 50ml distilled water into above-mentioned mixed solution, ultrasonic disperse 30~
40min。
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, under magnetic agitation state
210 DEG C of progress hydro-thermal reaction 9h are heated to, Temperature fall is precipitated after reaction.
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times with ethyl alcohol and deionized water, is ground after drying repeatedly
To multi-walled carbon nanotube/titanium dioxide optical catalyst.
The catalyst distinguishes the methyl orange solution 180min of photochemical catalytic oxidation 20mg/L under ultraviolet light (nm) and sunlight,
Photocatalysis efficiency is 87.33% and 77.02%.
Claims (7)
1. a kind of preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst, which is characterized in that including walking as follows
It is rapid:
(1) multi-walled carbon nanotube is added in ethyl alcohol and butyl titanate, HNO is then added3Solution (2M) adjusts pH to acyclic acidic
Simultaneously ultrasonic disperse is stirred in border；
(2) under stirring, ethyl alcohol and distilled water, 30~40min of ultrasonic disperse are added into above-mentioned mixed solution；
(3) mixed solution that step (2) obtains is transferred in closed stainless steel cauldron, is heated under magnetic agitation state
Hydro-thermal reaction 9h is carried out, Temperature fall is precipitated after reaction；
(4) by fMWNTs/TiO obtained by step (3)2It is washed 4-5 times repeatedly with ethyl alcohol and deionized water, grinding obtains more after drying
Wall carbon nano tube/titanium dioxide optical catalyst.
2. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (1), the additive amount of carboxylic carbon nano-tube is 0.15g, and caliber 8-15nm, length is 50 μm, carboxyl
Content is 2.56wt%.
3. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (1), the content of butyl titanate is 0.8-6.8ml.
4. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (1), HNO is added3The amount of solution (2M) is 0.02~7.5ml.
5. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (1), adjusts pH value to acidic environment and refer to adjusting pH value to 0.5-4.
6. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (2), ethyl alcohol additive amount is 10ml, and distilled water additive amount is 50ml.
7. the preparation method of functionalized multi-wall carbonnanotubes/titanium dioxide optical catalyst according to claim 1, feature
It is in the step (3), the temperature of hydro-thermal reaction is 120 DEG C -210 DEG C.
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| CN111807351A (en) * | 2019-04-11 | 2020-10-23 | 天津工业大学 | Method for analyzing carboxylation degree of carbon nano tube by using adsorption degree of dye |
| CN110252417A (en) * | 2019-06-25 | 2019-09-20 | 苏州大学 | A kind of titanate nanocone/polyacrylonitrile nanofiber composite material and preparation method |
| CN110252417B (en) * | 2019-06-25 | 2022-09-13 | 苏州大学 | Titanate nanocone/polyacrylonitrile nanofiber composite material and preparation method thereof |
| CN111944337A (en) * | 2020-08-10 | 2020-11-17 | 天津单从新材料科技有限公司 | Heatable photocatalyst coating and preparation method thereof |
| CN112473639A (en) * | 2020-11-30 | 2021-03-12 | 江苏中锦新能源科技有限公司 | Composite nano photocatalytic material and preparation method thereof |
| CN113042050A (en) * | 2021-02-02 | 2021-06-29 | 武汉理工大学 | CuO composite photocatalytic nano material and efficient preparation method thereof |
| CN113042050B (en) * | 2021-02-02 | 2024-04-30 | 武汉理工大学 | CuO composite photocatalytic nanomaterial and efficient preparation method thereof |
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