CN108262032A - A kind of modified graphene composite material and its photocatalysis - Google Patents
A kind of modified graphene composite material and its photocatalysis Download PDFInfo
- Publication number
- CN108262032A CN108262032A CN201611232579.XA CN201611232579A CN108262032A CN 108262032 A CN108262032 A CN 108262032A CN 201611232579 A CN201611232579 A CN 201611232579A CN 108262032 A CN108262032 A CN 108262032A
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- Prior art keywords
- composite material
- ethyl alcohol
- graphene composite
- modified graphene
- graphene oxide
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 230000001699 photocatalysis Effects 0.000 title abstract description 11
- 238000007146 photocatalysis Methods 0.000 title abstract description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 69
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 37
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 28
- 235000019441 ethanol Nutrition 0.000 claims abstract description 21
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000001291 vacuum drying Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 230000035484 reaction time Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000584 environmental toxicity Toxicity 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 239000002351 wastewater 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- B01J35/39—
Abstract
The invention discloses a kind of modified graphene composite material and its photocatalysis, modified graphene composite material is prepared by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasonic disperse is uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, mixed liquor is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron is carried out hydro-thermal reaction；The product of hydro-thermal reaction is taken out, is first cleaned with ethyl alcohol, is cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.Modified graphene composite material provided by the invention has excellent photocatalysis.
Description
Technical field
The invention belongs to Material Fields, and in particular to a kind of modified graphene composite material and its photocatalysis.
Background technology
In recent years, as Environment Pollution Event takes place frequently, water environment pollution aggravation, human health is by serious threat.Wherein,
Heavy metal pollution has the characteristics that eco-toxicity time length, non-degradable, can be enriched in vivo, and Cr VI is therein
Typical Representative is to threaten health one of 8 kinds of maximum chemical substances, is one of EPA regulation highest priority acccess control substances.
The common processing method of chromate waste water has absorption method, reduction method, electrolysis, membrane separation process, ion-exchange and bioanalysis etc..
Reduction method is typically that Cr in water (VI) is reduced into Cr (III), then adjust using chemical agent ferrous sulfate or sulphite etc.
PH value makes Cr (III) be converted into Cr (OH)3Precipitation removal.With the development of photocatalysis technology, photo catalytic reduction Cr (VI's) grinds
Study carefully the interest for gradually causing numerous researchers.
Visible light catalytic technology has the characteristics that energy source economy is extensive, reaction condition is mild, non-secondary pollution, it can
To utilize sunlight as driving force, excitation visible light catalyst generates the electron-hole pair with redox ability, and then
The active specy of some row is generated, realizes the efficient degradation removal to pollutant.Semi-conducting material titanium dioxide (TiO2) have
Property stabilization, nontoxicity, high catalytic activity, it is cheap the advantages that be widely used among photocatalysis technology, but there is also
Shortcoming.
Invention content
The object of the present invention is to provide a kind of modified graphene composite material and its photocatalysis.
Above-mentioned purpose is achieved by the following technical solution：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Further, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 100-200ml.
Further, the mass ratio of the butyl titanate and graphene oxide is 0.1-0.3:1.
Further, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 8-12 hours.
Further, vacuum drying property temperature 50 C.
Beneficial effects of the present invention：
Modified graphene composite material provided by the invention has excellent photocatalysis.
Specific embodiment
Intend specifically introducing the technical solution of the invention below by specific embodiment.
Embodiment 1：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 150ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.2:1.
Wherein, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 10 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 2：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 100ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.1:1.
Wherein, the temperature of the hydro-thermal reaction is 180 DEG C, and the reaction time is 12 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 3：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 200ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.3:1.
Wherein, the temperature of the hydro-thermal reaction is 260 DEG C, and the reaction time is 8 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 4：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 120ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.2:1.
Wherein, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 10 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 5：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 180ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.2:1.
Wherein, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 10 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 6：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 150ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.15:1.
Wherein, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 10 hours.
Wherein, vacuum drying property temperature 50 C.
Embodiment 7：
A kind of modified graphene composite material, prepares by the following method：Graphene oxide is scattered in absolute ethyl alcohol, ultrasound point
It dissipates uniform；Then under conditions of stirring, butyl titanate is slowly instilled in graphene oxide ethanol solution, is stirred, it will
Mixed liquor, which is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron, carries out hydro-thermal reaction；The product of hydro-thermal reaction is taken
Go out, first cleaned with ethyl alcohol, cleaned followed in turn by deionized water, the lower dry acquisition product in vacuum drying chamber.
Wherein, graphene oxide described in 10g corresponds to addition absolute ethyl alcohol 150ml.
Wherein, the mass ratio of the butyl titanate and graphene oxide is 0.25:1.
Wherein, the temperature of the hydro-thermal reaction is 180-260 DEG C, and the reaction time is 10 hours.
Wherein, vacuum drying property temperature 50 C.
Modified graphene composite material provided by the invention has excellent photocatalysis.
The effect of above-mentioned specific embodiment indicates that the essentiality content of the invention, but do not limit this hair with this
The protection domain of bright creation.Simply modification or equivalent replacement are carried out to the technical solution of the invention, without departing from this hair
It is bright to create the essence of technical solution, thus necessarily fall into the protection domain of the invention.
Claims (5)
1. a kind of modified graphene composite material, which is characterized in that prepare by the following method：Graphene oxide is scattered in anhydrous
In ethyl alcohol, ultrasonic disperse is uniform；Then under conditions of stirring, it is molten that butyl titanate is slowly instilled to graphene oxide ethyl alcohol
In liquid, mixed liquor is transferred in polytetrafluoroethylliner liner to be fitted into stainless steel cauldron and carries out hydro-thermal reaction by stirring；By hydro-thermal
The product of reaction takes out, and is first cleaned with ethyl alcohol, is cleaned followed in turn by deionized water, and drying is produced down in vacuum drying chamber
Object.
2. modified graphene composite material according to claim 1, it is characterised in that：Graphene oxide described in 10g corresponds to
Add absolute ethyl alcohol 100-200ml.
3. modified graphene composite material according to claim 1, it is characterised in that：The butyl titanate and oxidation stone
The mass ratio of black alkene is 0.1-0.3:1.
4. modified graphene composite material according to claim 1, it is characterised in that：The temperature of the hydro-thermal reaction is
180-260 DEG C, the reaction time is 8-12 hours.
5. modified graphene composite material according to claim 1, it is characterised in that：Vacuum drying property temperature 50 C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232579.XA CN108262032A (en) | 2016-12-30 | 2016-12-30 | A kind of modified graphene composite material and its photocatalysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232579.XA CN108262032A (en) | 2016-12-30 | 2016-12-30 | A kind of modified graphene composite material and its photocatalysis |
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| Publication Number | Publication Date |
|---|---|
| CN108262032A true CN108262032A (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611232579.XA Pending CN108262032A (en) | 2016-12-30 | 2016-12-30 | A kind of modified graphene composite material and its photocatalysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675519A (en) * | 2018-12-25 | 2019-04-26 | 昆明理工大学 | A kind of preparation method and application of modified coal ash-graphene oxide composite material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028387A (en) * | 2012-12-28 | 2013-04-10 | 聊城大学 | Preparation method of graphene/titanium dioxide photocatalyst |
| CN103332678A (en) * | 2013-05-24 | 2013-10-02 | 东莞上海大学纳米技术研究院 | Preparation methods of graphene and graphene-oxide compound |
| CN104815637A (en) * | 2015-04-02 | 2015-08-05 | 西北师范大学 | Method for hydrothermal method preparation of graphene-loaded flower-type titanium dioxide composite material |
-
2016
- 2016-12-30 CN CN201611232579.XA patent/CN108262032A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103028387A (en) * | 2012-12-28 | 2013-04-10 | 聊城大学 | Preparation method of graphene/titanium dioxide photocatalyst |
| CN103332678A (en) * | 2013-05-24 | 2013-10-02 | 东莞上海大学纳米技术研究院 | Preparation methods of graphene and graphene-oxide compound |
| CN104815637A (en) * | 2015-04-02 | 2015-08-05 | 西北师范大学 | Method for hydrothermal method preparation of graphene-loaded flower-type titanium dioxide composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675519A (en) * | 2018-12-25 | 2019-04-26 | 昆明理工大学 | A kind of preparation method and application of modified coal ash-graphene oxide composite material |
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Application publication date: 20180710 |
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