CN106179311A - A kind of photocatalyst of Graphene bismuth titanates composite - Google Patents
A kind of photocatalyst of Graphene bismuth titanates composite Download PDFInfo
- Publication number
- CN106179311A CN106179311A CN201610513420.9A CN201610513420A CN106179311A CN 106179311 A CN106179311 A CN 106179311A CN 201610513420 A CN201610513420 A CN 201610513420A CN 106179311 A CN106179311 A CN 106179311A
- Authority
- CN
- China
- Prior art keywords
- graphene
- mixed solution
- photocatalyst
- solution
- bismuth
- 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.)
- Pending
Links
- 229910002115 bismuth titanate Inorganic materials 0.000 title claims abstract description 23
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 16
- 239000011259 mixed solution Substances 0.000 claims abstract description 30
- 239000000243 solution Substances 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical class [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 13
- RXPAJWPEYBDXOG-UHFFFAOYSA-N hydron;methyl 4-methoxypyridine-2-carboxylate;chloride Chemical compound Cl.COC(=O)C1=CC(OC)=CC=N1 RXPAJWPEYBDXOG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000010936 titanium Substances 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000001476 alcoholic effect Effects 0.000 claims abstract description 5
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 5
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 5
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract description 4
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 4
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-phenylethanol Chemical compound OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 claims description 3
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims description 3
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 24
- 230000001699 photocatalysis Effects 0.000 abstract description 13
- 239000002114 nanocomposite Substances 0.000 abstract description 12
- 238000007146 photocatalysis Methods 0.000 abstract description 11
- 229910002116 Bi12TiO20 Inorganic materials 0.000 description 20
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229910002118 Bi2Ti2O7 Inorganic materials 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 229920002521 macromolecule Polymers 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
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 241001198704 Aurivillius Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910001451 bismuth ion Inorganic materials 0.000 description 1
- QAKMMQFWZJTWCW-UHFFFAOYSA-N bismuth titanium Chemical compound [Ti].[Bi] QAKMMQFWZJTWCW-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 239000002023 wood 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/18—Arsenic, antimony or bismuth
-
- B01J35/39—
Abstract
The present invention discloses the photocatalyst of a kind of Graphene bismuth titanates composite, and this photocatalyst is prepared by following steps: takes bismuth nitrate and is dissolved in the salpeter solution that pH value is 0～1.5, configures the first mixed solution；Take titanate esters and be dissolved in the alcoholic solution that molecular weight is bigger, obtain the second mixed solution；Take the first mixed solution and the second mixed solution is mixed into the 3rd mixed solution, making the mol ratio of bismuth/titanium in the 3rd mixed solution is 1:10～12, and in the 3rd mixed solution, the Graphene of 0.5～2g is added with 100ml, stirring 2～4h, and reaction solution is placed in hydrothermal reaction kettle reaction, it is washed with deionized sample after reaction repeatedly, after vacuum drying, carries out high-temperature heat treatment at 350 DEG C～500 DEG C, it is thus achieved that photocatalyst Graphene Bi20TiO32Nano composite material.The present invention has excellent photocatalysis performance and uses prospect widely.
Description
The application is to 20 days November 2014 applying date, application number CN 2014106736930, denomination of invention: Yi Zhongshi
The photocatalyst of ink alkene-bismuth titanates composite, the divisional application made.
Technical field
The present invention relates to photocatalyst technology of preparing, especially relate to a kind of Graphene-bismuth titanates (Graphene-
Bi20TiO32) photocatalyst of composite.
Background technology
Bi and Ti is because non-toxic inexpensive is referred to as " green metal ", Bi2Q3And TiQ2Compound can formation has multiple crystalline phase
Structure meet oxide.Bismuth titanates series is a kind of typical Aurivillius stratified material, and its crystal formation specifically includes that
Bi4Ti3O12、Bi2Ti2O7、Bi12TiO20、Bi20TiO32Deng.There are some researches show that molecular formula is Bi20TiO32Bismuth titanates (partly lead
Body material can be used as visible light-responded photocatalytic pollutant degradation.
Bi20TiO32Being the one of the bismuth titanates series material with photocatalytic activity, it disclosure satisfy that under sunlight still
There is this requirement of high photocatalysis performance, and this material itself is nontoxic, meet novel environmental friendly photocatalysis material
The requirement of material.But under general condition, Bi20TiO32Be in a kind of metastable state, it only titanium bismuth mixed oxide to
Bi2Ti2O7Occur during transformation of crystal, by consulting Bi2O3-TiO2The phasor of system understands, under normal conditions
Bi20TiO32Being in metastable state, it can not be formed under conditions of temperature is less than 400 DEG C.
Further, single bismuth titanates (Bi20TiO32) semi-conducting material is higher because of the recombination probability of photogenerated charge, causes its light
Catalysis activity performance is the highest.To this end, improve the separation efficiency of bismuth titanates photo-generated carrier the most further and then improve its light
Catalytic performance, it has also become currently one of technical barrier needing research badly.
Summary of the invention
For overcoming the defect of prior art, the present invention proposes a kind of Graphene-bismuth titanates with sunlight catalytic activity
(Graphene-Bi20TiO32) photocatalyst of composite.
The present invention adopts the following technical scheme that realization: the photocatalyst of a kind of Graphene-bismuth titanates composite, this light is urged
Agent is prepared by following steps:
Take bismuth nitrate to be dissolved in the salpeter solution that pH value is 0～1.5, configure the first mixed solution；
Take titanate esters and be dissolved in the alcoholic solution that molecular weight is bigger, obtain the second mixed solution；
Take the first mixed solution and the second mixed solution is mixed into the 3rd mixed solution, make bismuth/titanium in the 3rd mixed solution
Mol ratio be 1:10～12, and in the 3rd mixed solution with 100ml add 0.5～2g Graphene, stir 2～4h, and
Reaction solution is placed in hydrothermal reaction kettle reaction, is washed with deionized sample after reaction repeatedly, after vacuum drying at 350 DEG C～
500 DEG C carry out high-temperature heat treatment, it is thus achieved that photocatalyst Graphene-Bi20TiO32Nano composite material.
Wherein, described hydrothermal reaction kettle carries out reacting 18～36 little when reaction is under nitrogen charging environment, temperature 120-160 DEG C
Time.
Wherein, described titanate esters is butyl titanate or isopropyl titanate, or the arbitrary proportion mixture of both.
Wherein, the alcohol that described molecular weight is bigger be the one in the tert-butyl alcohol, benzyl alcohol, phenethanol and p nitrobenzyl alcohol or
The arbitrary proportion mixture of these four.
Wherein, in the 3rd mixed solution, the Graphene of 1.2g is added with 100ml.
Compared with prior art, there is advantages that
Photocatalyst Graphene-the Bi prepared due to the present invention12TiO20Nano composite material have the biggest surface area with
And higher porosity, thus improve Graphene-Bi12TiO20The nano composite material pre-suction to the contaminant molecule that is degraded
Attached ability, meanwhile, also form the biggest diffusion admittance, can be with contaminant restraining pair during single or multiple recycles
The blocking in space, it is to avoid Graphene-Bi12TiO20The inactivation of nano composite material, such that it is able to keep higher photocatalysis to live
Property and stability.It addition, Graphene-Bi12TiO20The photocatalysis performance raising of nano composite material comes from the effective of photogenerated charge
Separate and transmission, by synthesizing Bi after adding a small amount of Graphene12TiO20, thus form Graphene-Bi12TiO20Nano combined material
Material, this Graphene-Bi12TiO20Nano composite material is at Graphene and Bi12TiO20Define closely-coupled boundary between the two
Face, thus constructed the transmission of good electron propagation ducts, beneficially light induced electron, and then improve the separation of photo-generated carrier
Efficiency, thus compare Bi12TiO20There is more preferably photocatalysis performance.The present invention has widened Bi12TiO20Answering in photocatalysis field
With, tool has a broad prospect of the use.
Accompanying drawing explanation
Fig. 1 is Bi20TiO32And Graphene-Bi20TiO32XRD schematic diagram.
Detailed description of the invention
The present invention proposes a kind of Graphene-bismuth titanates (Graphene-Bi with sunlight catalytic activity20TiO32) compound
The photocatalyst of material, this Graphene-Bi20TiO32Composite is prepared by the following manner:
First, Graphene is prepared according to Hummers method.
Such as, assembling the reaction bulb of 250mL in ice-water bath, add appropriate concentrated sulphuric acid, stirring is lower adds 2g graphite
Powder and the solid mixture of 1g sodium nitrate, then add 6g potassium permanganate by several times, control reaction temperature and be less than 20 DEG C, stirring reaction
A period of time, then it is warmed up to about 35 DEG C, continues stirring 30min, be slow added into a certain amount of deionized water, continue and mix 20 points
After clock (min), and add the oxidant that the reduction of appropriate hydrogen peroxide remains, make solution become glassy yellow.Filtered while hot, and with 5%
HCl solution and deionized water wash are detected until sulfate radical-free in filtrate.Finally filter cake is placed in the vacuum of 60 DEG C
Drying baker is fully dried to obtain Graphene, saves backup.
Secondly, catalyst Graphene-Bi is prepared12TiO20。
1, take bismuth nitrate to be dissolved in the salpeter solution that pH value is 0～1.5, configure the first mixed solution.
Bismuth nitrate is colourless glossiness crystallization, has the abnormal smells from the patient of nitric acid, easy deliquescence, and solution reacts acid, and divides in water
Solution becomes basic salt, is dissolved in dust technology.In order to prevent from bismuth nitrate course of dissolution occurs hydrolysis, therefore by regulation concentration of nitric acid
Control the pH value of solution, when solution ph is 0～1.5, bismuth nitrate during being dissolved in salpeter solution substantially without send out
Unboiled water solution.Certainly, according to actual needs, after bismuth nitrate fully dissolves, water can be added to regulate the pH value of bismuth nitrate solution.
2, take titanate esters and be dissolved in the alcoholic solution of macromolecule, obtain the second mixed solution.Wherein provided by butyl titanate
Titanium source, the alcoholic solution of macromolecule is as solvent.
Wherein, the alcohol that molecular weight is bigger be the one in the tert-butyl alcohol, benzyl alcohol, phenethanol and p nitrobenzyl alcohol or this four
The arbitrary proportion mixture planted.
Wherein, titanate esters is butyl titanate or isopropyl titanate, or the arbitrary proportion mixture of both.
3, take the first mixed solution and the second mixed liquor is mixed into the 3rd mixed solution, make bismuth/titanium in the 3rd mixed solution
Mol ratio be 1:10～12, in above-mentioned 3rd mixed solution, add the Graphene of 0.5～2g with 100ml simultaneously, stirring 2～
4 hours (h), and reaction solution is placed in hydrothermal reaction kettle under nitrogen charging environment, temperature 120-160 DEG C time reaction 18～36 little
Time, it is washed with deionized sample after reaction repeatedly, carries out high-temperature heat treatment at 350 DEG C～500 DEG C after vacuum drying, it is thus achieved that stone
The composite of ink alkene-metastable state bismuth titanates nanometer sheet, wherein, the crystalline phase of bismuth titanates is Bi20TiO32。
Preferably, in the 3rd mixed solution, the Graphene of 1.2g is added with 100ml.
From the Bi of Fig. 120TiO32And Graphene-Bi20TiO32XRD schematic diagram it can be seen that can successfully realize titanium from
Son and bismuth ion to metastable state bismuth titanates (Bi20TiO32) conversion.Additionally, from fig. 1, it can be seen that Graphene-Bi20TiO32Composite wood
Material maintains metastable state bismuth titanates (Bi20TiO32) crystal structure；Owing in complex, Graphene content is relatively low, a certain amount of stone
The compound of ink alkene does not affects metastable state bismuth titanates (Bi20TiO32) crystal structure.
Weigh the catalyst Graphene-Bi of the above-mentioned preparation of 0.1g12TiO20, it is scattered in the 1 × 10 of 100ml-5M methyl
In the beaker (250ml) of orange solution, magnetic agitation 60min under dark condition so that it is suction-desorption equilibrium can be reached, wait have
After balance, this system is put into sun-drenched also side, under direct irradiation of sunlight, carries out the catalytic degradation of methyl orange.Every
In certain response time, take 5ml reactant liquor, and separated by high speed centrifuge, take out supernatant.Centrifugal liquid via ultraviolet-
Visible spectrophotometer detects, and the change observing about maximum absorption peak intensity at 464nm speculates methyl orange degradation
Concentration change.Test result indicate that, the Graphene-Bi of the present invention12TiO20Photocatalytic activity is far above Bi12TiO20And it is commercial
P25 (titanium dioxide).Graphene-Bi12TiO20Catalyst is 98% at 75 minutes degradation rates；Bi12TiO20Light urges agent at 75 minutes
Degradation rate is 72%, degradable, needs about 2.5 hours；And P25 only degraded 57% when 75 minutes, degradable, need
3.5 hour.
It addition, photocatalyst Graphene-Bi prepared by the present invention12TiO20Also have and preferably reuse characteristic.
Photocatalyst Graphene-the Bi prepared due to the present invention12TiO20Nano composite material have the biggest surface area with
And higher porosity, thus improve Graphene-Bi12TiO20The nano composite material pre-suction to the contaminant molecule that is degraded
Attached ability, meanwhile, also form the biggest diffusion admittance, can be with contaminant restraining pair during single or multiple recycles
The blocking in space, it is to avoid Graphene-Bi12TiO20The inactivation of nano composite material, such that it is able to keep higher photocatalysis to live
Property and stability.It addition, Graphene-Bi12TiO20The photocatalysis performance raising of nano composite material comes from the effective of photogenerated charge
Separate and transmission, by synthesizing Bi after adding a small amount of Graphene12TiO20, thus form Graphene-Bi12TiO20Nano combined material
Material, this Graphene-Bi12TiO20Nano composite material is at Graphene and Bi12TiO20Define closely-coupled boundary between the two
Face, thus constructed the transmission of good electron propagation ducts, beneficially light induced electron, and then improve the separation of photo-generated carrier
Efficiency, thus compare Bi12TiO20There is more preferably photocatalysis performance.The present invention has widened Bi12TiO20Answering in photocatalysis field
With, tool has a broad prospect of the use.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (5)
1. the photocatalyst of Graphene-bismuth titanates composite, it is characterised in that this photocatalyst is by following steps system
Standby:
Graphene is prepared according to Hummers method；
Take bismuth nitrate to be dissolved in the salpeter solution that pH value is 0～1.5, configure the first mixed solution；
Take titanate esters and be dissolved in the alcoholic solution that molecular weight is bigger, obtain the second mixed solution；
Take the first mixed solution and the second mixed solution is mixed into the 3rd mixed solution, make rubbing of bismuth/titanium in the 3rd mixed solution
Your ratio is 1:10～12, and adds the Graphene of 0.5～2g in the 3rd mixed solution with 100ml, stirs 2～4h, and will be anti-
Answer solution to be placed in hydrothermal reaction kettle reaction, be washed with deionized sample after reaction repeatedly, at 350 DEG C～500 after vacuum drying
DEG C carry out high-temperature heat treatment, it is thus achieved that photocatalyst Graphene-Bi20TiO32Composite.
The photocatalyst of a kind of Graphene-bismuth titanates composite, it is characterised in that described water
Thermal response still carries out reacting 18～36 hours when reaction is under nitrogen charging environment, temperature 120-160 DEG C.
The photocatalyst of a kind of Graphene-bismuth titanates composite, it is characterised in that described titanium
Acid esters is butyl titanate or isopropyl titanate, or the arbitrary proportion mixture of both.
The photocatalyst of a kind of Graphene-bismuth titanates composite, it is characterised in that described point
The son bigger alcohol of amount is that the arbitrary proportion of a kind of or these four in the tert-butyl alcohol, benzyl alcohol, phenethanol and p nitrobenzyl alcohol mixes
Compound.
The photocatalyst of a kind of Graphene-bismuth titanates composite, it is characterised in that the 3rd
Mixed solution adds the Graphene of 1.2g with 100ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610513420.9A CN106179311A (en) | 2014-11-20 | 2014-11-20 | A kind of photocatalyst of Graphene bismuth titanates composite |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673693.0A CN104324713B (en) | 2014-11-20 | 2014-11-20 | A kind of photochemical catalyst of Graphene-bismuth titanates composite |
| CN201610513420.9A CN106179311A (en) | 2014-11-20 | 2014-11-20 | A kind of photocatalyst of Graphene bismuth titanates composite |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673693.0A Division CN104324713B (en) | 2014-11-20 | 2014-11-20 | A kind of photochemical catalyst of Graphene-bismuth titanates composite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106179311A true CN106179311A (en) | 2016-12-07 |
Family
ID=52399591
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610513420.9A Pending CN106179311A (en) | 2014-11-20 | 2014-11-20 | A kind of photocatalyst of Graphene bismuth titanates composite |
| CN201410673693.0A Active CN104324713B (en) | 2014-11-20 | 2014-11-20 | A kind of photochemical catalyst of Graphene-bismuth titanates composite |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673693.0A Active CN104324713B (en) | 2014-11-20 | 2014-11-20 | A kind of photochemical catalyst of Graphene-bismuth titanates composite |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106179311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876099A (en) * | 2017-11-28 | 2018-04-06 | 江苏师范大学 | A kind of Fe BiOBr/MOF SO3@TiO2The preparation method of photochemical catalyst |
| CN112371104A (en) * | 2020-12-08 | 2021-02-19 | 陕西科技大学 | Calcium titanate/bismuth titanate composite photocatalyst and preparation method and application thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728011B (en) * | 2016-02-05 | 2018-03-20 | 武汉理工大学 | A kind of tetrahedron pattern Bi12TiO20/g‑C3N4Composite visible light catalyst and preparation method thereof |
| CN105731584B (en) * | 2016-03-25 | 2018-04-17 | 郑州航空工业管理学院 | A kind of method for removing micropollutants brufen in water removal |
| CN108203142A (en) * | 2017-12-28 | 2018-06-26 | 盛世生态环境股份有限公司 | A kind of photocatalysis combination electrode and preparation method thereof and application in the treatment of waste water |
| CN113713801A (en) * | 2021-09-29 | 2021-11-30 | 常州大学 | Bismuth titanate composite photocatalyst and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862649A (en) * | 2010-03-23 | 2010-10-20 | 中南民族大学 | Preparation method and application of single-phase bismuth titanate nano-material |
| CN102626634A (en) * | 2012-03-30 | 2012-08-08 | 南京理工大学 | Bismuth ferrite-graphene compounding magnetism visible light catalyst, as well as preparation method and application of same |
| CN104069848A (en) * | 2014-07-06 | 2014-10-01 | 南京师范大学 | Method for preparing pure phase bismuth titanate and titanium oxide composite material by using alcohol heat method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100509149C (en) * | 2007-11-08 | 2009-07-08 | 北京师范大学 | Method for preparing porous bismuth titanate photocatalyst |
| CN101157025A (en) * | 2007-11-13 | 2008-04-09 | 山东大学 | A high efficiency photocatalysis thin membrane and method for making same |
| CN101565203B (en) * | 2008-04-23 | 2011-04-20 | 中国科学院合肥物质科学研究院 | Bismuth sodium titanate nanometer flower and preparation method thereof |
| CN101428210B (en) * | 2008-12-12 | 2011-02-09 | 上海师范大学 | Porous structured bismuth titanate microsphere preparation method |
| CN101574653B (en) * | 2009-06-11 | 2012-05-23 | 山东大学 | Bismuth titanate photocatalytic material with visible light response and preparation method thereof |
| CN101774638A (en) * | 2009-11-25 | 2010-07-14 | 天津大学 | Method for preparing self-assembly Bi12TiO20 nano-wires by solution method |
| CN101774639A (en) * | 2009-11-25 | 2010-07-14 | 天津大学 | Method for preparing self-assembly Bi12TiO20 micro-flowers by solution method |
-
2014
- 2014-11-20 CN CN201610513420.9A patent/CN106179311A/en active Pending
- 2014-11-20 CN CN201410673693.0A patent/CN104324713B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862649A (en) * | 2010-03-23 | 2010-10-20 | 中南民族大学 | Preparation method and application of single-phase bismuth titanate nano-material |
| CN102626634A (en) * | 2012-03-30 | 2012-08-08 | 南京理工大学 | Bismuth ferrite-graphene compounding magnetism visible light catalyst, as well as preparation method and application of same |
| CN104069848A (en) * | 2014-07-06 | 2014-10-01 | 南京师范大学 | Method for preparing pure phase bismuth titanate and titanium oxide composite material by using alcohol heat method |
Non-Patent Citations (2)
| Title |
|---|
| JUNGANG HOU,ET AL: "Hierarchically Plasmonic Z-Scheme Photocatalyst of Ag/AgCl Nanocrystals Decorated Mesoporous Single-Crystalline Metastable Bi20TiO32 Nanosheets", 《J. PHYS. CHEM. C》 * |
| WAN GUO, ET AL: "Self-assembled hierarchical Bi12TiO20-graphene nanoarchitectures with excellent simulated sunlight photocatalytic activity", 《PHYS. CHEM. CHEM. PHYS.》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107876099A (en) * | 2017-11-28 | 2018-04-06 | 江苏师范大学 | A kind of Fe BiOBr/MOF SO3@TiO2The preparation method of photochemical catalyst |
| CN112371104A (en) * | 2020-12-08 | 2021-02-19 | 陕西科技大学 | Calcium titanate/bismuth titanate composite photocatalyst and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104324713B (en) | 2016-08-24 |
| CN104324713A (en) | 2015-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106179311A (en) | A kind of photocatalyst of Graphene bismuth titanates composite | |
| CN104128184B (en) | A kind of float type CoFe2O4/TiO2/ float bead composite photochemical catalyst and preparation method thereof | |
| CN102335602B (en) | Bismuth tungstate composite photocatalyst, preparation method thereof, and application thereof | |
| CN103894177B (en) | A kind of synthetic method with the rear-earth-doped metatitanic acid potassium powder of photocatalytic activity | |
| CN102380367B (en) | Control synthetic method of high-visible-light-activity mixed crystal type BiVO4 photocatalysts | |
| CN102602997B (en) | Method for preparing indium vanadate nano particles | |
| CN102085482A (en) | Preparation method of p-CoO/n-CdS/TiO2 composite semiconductor photocatalyst | |
| CN109289881A (en) | A kind of preparation and solar energy fixed nitrogen application of carbon nano-fiber support BiOX photocatalyst | |
| CN102600865B (en) | Photocatalyst for degrading organic dye waste water pollutants and preparation method thereof | |
| CN101791548A (en) | Visible light catalyst BiVO4 and preparation method thereof | |
| CN107876039A (en) | The preparation method of graphene cerium oxide hybrid material | |
| CN102698735B (en) | Method of preparing flower-ball shaped Bi4V2O11 visible-light catalyst | |
| CN102580720B (en) | Visible light response nano zinc oxide-bismuth oxide composite photocatalyst and preparation method thereof | |
| CN102513096B (en) | Co-doped visible light response bismuth tungstate photochemical catalyst and preparation method thereof | |
| CN103785425B (en) | A kind of flower-shaped Bi 2o (OH) 2sO 4the preparation method of photochemical catalyst and application | |
| CN103933957B (en) | Porous monocrystalline nano titanium dioxide photocatalyst that a kind of high crystallization, size are controlled, high-energy surface exposes and its preparation method and application | |
| CN102872885B (en) | Visible-light response type photocatalyst and preparation method thereof | |
| CN104307543A (en) | Preparation method of phosphoric acid modified titanium dioxide photocatalyst | |
| CN103787413B (en) | Hexagon hollow tubulose Bi 2o (OH) 2sO 4the preparation method of photochemical catalyst and application | |
| CN103301866A (en) | Preparation method of silicon-aluminium nanotube loaded nitrogen-doped titanium dioxide | |
| CN106076422A (en) | A kind of sepiolite supported porphyrin sensitization Bi2wO6the preparation method of visible light catalyst | |
| CN104437460B (en) | The photochemical catalyst nano composite material prepared based on single-phase bismuth titanate | |
| CN101723313B (en) | Method for preparing nano titanium dioxide/carbon nano tube composite material | |
| CN109569688B (en) | Carbon and nitrogen co-doped potassium metaindate photocatalytic material and preparation method thereof | |
| CN107983376B (en) | Lead yttrium titanate/bismuth oxychloride and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161207 |