CN104307576A - Catalyst carrier and application thereof - Google Patents
Catalyst carrier and application thereof Download PDFInfo
- Publication number
- CN104307576A CN104307576A CN201410633672.6A CN201410633672A CN104307576A CN 104307576 A CN104307576 A CN 104307576A CN 201410633672 A CN201410633672 A CN 201410633672A CN 104307576 A CN104307576 A CN 104307576A
- Authority
- CN
- China
- Prior art keywords
- catalyst carrier
- surfactant
- catalyst
- metal oxide
- solution
- 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
Abstract
The invention discloses a catalyst carrier and application thereof. The catalyst carrier comprises metallic oxide and doped graphene, wherein the metallic oxide is a ceramic nano semiconductor material such as fiber-like alpha-Fe2O3, TiO2 or Al2O3. The catalyst carrier disclosed by the invention is simple and effective, and by using the catalyst carrier, the active locus of a metal catalyst can be improved by using a photocatalysis method. The ultraviolet spectrum testing shows that compared with a catalyst which is not radiated with light, the catalyst which is radiated with light is remarkably improved in catalytic activity.
Description
Technical field
The invention belongs to noble metal cermet catalyst technical field, particularly relate to a kind of catalyst carrier and increase the application in noble metal cermet caltalyst activity at photocatalytic method.
Background technology
Nano-noble metal catalyst has become the study hotspot of the world today, and because it has specific area greatly, surface energy is high, and in crystal, diffusion admittance is short, and superficial catalytic activation position is many, the advantages such as high adsorption capacity, can control reaction rate, as Pt nano particle; But what in preparation method, application was now more is that polyol process prepares Pt nano particle, and wherein Pt raw material is six hydration chloroplatinates, and reducing agent is ethylene glycol, and surfactant is polyvinylpyrrolidone (PVP).PVP is coated on Pt nano grain surface, can stablize Pt nano particle.But the surfactant added is more, and nano particle diameter is less, the catalytic activity causing nanocatalyst also significantly reduces [3], this because PVP too much be coated on Pt nano grain surface, mask its active site.So need to seek a kind of method to increase its avtive spot.([3] Yang Yuqin, Zou Cuie, Du Yu detains. two kinds of comparisons [J] preparing Pt nanoparticle method, chemical research, 2004,15 (4): 17 ~ 19.).
Ceramic nanofibers is because it is high temperature resistant, corrosion-resistant, and specific area is large, and the performance of easily absorption, is extensively studied by as catalyst carrier now.And compared with other carriers, ceramic metal oxide not only can as carrier or good photochemical catalyst, transit to conduction band by the electronics in molecular orbit being made to leave valence band under the photon excitation with certain energy.Thus form photohole in material valence band, form light induced electron at conduction band.Because light induced electron and photohole have very strong energy, exceed the intensity of general high molecular strand far away, then can easily macromolecule be decomposed; So the high molecular electronics being adsorbed on semiconductor surface also can be captured in hole itself, not light absorbing material is originally decomposed by direct oxidation.But light induced electron starts to be easy to and photohole compound in the process of particle surface activity at arrival conduction band, and to shortcomings such as the utilization rate of visible ray are very low, therefore needs other materials to carry out modification and namely modify photochemical catalyst.[4]（[4]?Li?E?J，?Zhang?Q，?Li?W?H，?et?al.?Bismuth-containing?semiconductor?photocatalysts?[J].?Progress?in?Chemistry，?2010，?22:?2282-?2289.）。
But, the object of the invention is by with Graphene doping and modification ceramic oxide semi-conducting material, and then facilitate its being more widely used in carrier; The agent of photoactivation simultaneously can make PtCl
6 2-be reduced to Pt nano particle and the surfactant being wrapped in Pt nano grain surface is decomposed, make the avtive spot of Pt particle surface more out exposed.
Summary of the invention
the technical problem solved:the present invention is directed to the defect that existing catalyst carrier avtive spot is few, a kind of catalyst carrier is provided and increases the application in noble metal cermet caltalyst activity at photocatalytic method.
technical scheme:catalyst carrier, includes the Graphene of metal oxide and doping.
Described metal oxide is particle or fibrous α ﹣ Fe
2o
3, TiO
2or Al
2o
3deng ceramic nano semi-conducting material.
Described metal oxide is the carrier with photocatalytic activity.
Described metal oxide particle or fiber are prepared by method of electrostatic spinning, and graphene oxide is standby by Hummer legal system.
In the metal oxide of described doped graphene, the mass ratio of metal oxide and Graphene is 20-1.
The doping method of the metal oxide of described doped graphene is hydro-thermal method.
Described catalyst carrier increases the application in noble metal cermet caltalyst activity at photocatalytic method.
Catalyst carrier increases the application in noble metal cermet caltalyst activity at photocatalytic method, step is: preparation catalyst supporting solution: by water-soluble for catalyst carrier with in the mixed solution of methyl alcohol, the concentration of catalyst carrier is 0.1-10mg/mL, and the volume ratio of water and methyl alcohol is 1/3-3; Prepare the aqueous solution of chloroplatinic acid and surfactant respectively, the concentration of the aqueous solution of described chloroplatinic acid is 100-1mg/mL, and the concentration of the aqueous solution of described surfactant is 100-1mg/mL; Then by the aqueous solution of equal-volume chloroplatinic acid and surfactant simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 20-0.1, and the mass ratio of surfactant and catalyst carrier is 20-0.1; Use up while injecting and irradiate solution 15 ~ 90min.
Described surfactant is PVP or PVA.
Described illumination penetrates the light source of use for ultraviolet light or visible ray; In catalyst carrier, the size of Pt nano particle is 1-5nm.
beneficial effect:the invention provides a simply effective catalyst carrier, and utilize this catalyst carrier, adopt photocatalysis method to improve the avtive spot of metallic catalyst.By doing ultraviolet spectra test, compared with the catalyst of non-illumination, the catalytic activity of illumination rear catalyst is significantly improved.
Accompanying drawing explanation
Fig. 1: block diagram contrast (abscissa: photocatalysis time, ordinate: the conversion ratio of unit interval reactant) of catalyst before and after (embodiment 1) photocatalysis.
Fig. 2: the TEM collection of illustrative plates after (embodiment 1) load.
Fig. 3: the Pt particulate catalytic effectiveness comparison figure after the Pt particle of non-illumination and illumination.
Detailed description of the invention
Metal oxide nano-material in this carrier not only can do carrier and also as photochemical catalyst, because semiconductor light-catalyst produces electronics-hole pair by optical excitation, can be decomposed through series reaction to high molecular redox.But from improving the utilization rate of photocatalysis efficiency and sunshine, also there is following major defect: one is the light absorption wavelength narrow scope of semiconductor, mainly in ultra-violet (UV) band, utilizes the ratio of sunshine low, as TiO
2; Another is that the recombination rate of semiconductor carriers is very high, and therefore quantum efficiency is lower.So just start to carry out study on the modification to semiconductor light-catalyst.The object of modification and effect comprise raising and excite separation of charge, suppress Carrier recombination to improve quantum efficiency; Expand the utilization rate to sunshine; Improve the stability etc. of catalysis material, because Graphene participates in light-catalyzed reaction can effectively reduce excitation electron-hole-recombination probability, increase the adsorptivity of photochemical catalyst; Meanwhile, for the semi-conducting material of some, by its energy gap can be reduced with Graphene compound, adjust its position of energy band.By using photocatalytic method, utilize the photocatalytic activity of carrier of photocatalyst, by PtCl on ceramic matrix
6 2-be reduced to Pt nano particle, the surfactant decomposes avtive spot of Pt particle surface increases simultaneously, and then improves the catalytic efficiency of noble metal catalyst.First the metal oxide semiconductor material absorb photons in ceramic monolith, its electronics is separated with hole, and electronics can spread out of rapidly as wire by Graphene, and then stops the compound of light induced electron and photohole.Secondly, light induced electron can by PtCl
6 2-be reduced to Pt nano particle, and photohole captures the electronics containing groups such as carbonyls on surfactant, thus macromolecule decomposes.Make more active catalyst sites out exposed.
Catalyst carrier, is characterized in that the Graphene including metal oxide and doping.In the metal oxide of described doped graphene, the mass ratio of metal oxide and Graphene is 20-1, especially with 4:1-16:1 best results.
Photocatalytic method increases a method for noble metal cermet caltalyst activity, comprising:
(step 1) preparation catalyst supporting solution: by water-soluble for catalyst carrier with in the mixed solution of methyl alcohol, make this mixed solution uniform stirring;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant respectively, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant simultaneously injecting catalyst carrier solution, uses up irradiation solution while injection.
(step 3) illumination different time sections samples, and then detects the size of different time sections Pt particle and the decomposition situation of surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Wherein, [1] metal oxide particle is α ﹣ Fe
2o
3, TiO
2, Al
2o
3ceramic nano semi-conducting materials etc., it is prepared by method of electrostatic spinning.Wherein graphene oxide is standby by Hummer legal system.The doping method of the metal oxide of doped graphene is hydro-thermal method.
[2] in step 1, catalyst carrier can be α ﹣ Fe
2o
3/ RGO, TiO
2/ RGO, Al
2o
3/ RGO.If metal oxide is α ﹣ Fe
2o
3time, the light source of employing is visible ray (λ >420nm); If metal oxide is TiO
2or Al
2o
3time, the light source of employing is ultraviolet light;
[3] in step 1, the volume ratio of water and methyl alcohol is 1/3-3, and the concentration of catalyst carrier is 0.1mg/mL-10mg/mL; Surfactant wherein in step 2 can be PVP, PVA etc.;
[4] concentration of the aqueous solution of chloroplatinic acid is 100-1mg/mL; The concentration of the aqueous solution of surfactant is 100-1mg/mL; In catalyst supporting solution, wherein the ratio of chloroplatinic acid and catalyst carrier is 20-0.1, and the ratio of surfactant and catalyst carrier is 20-0.1
[5] on ceramic matrix, the Pt particle diameter of load is 1-5nm.In step 3, light source light application time is 15-60min.
Surfactant in following examples is for PVP.
Embodiment 1:
(step 1) preparation catalyst carrier α ﹣ Fe
2o
3/ RGO solution: by catalyst carrier α ﹣ Fe
2o
3uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 0.1 mg/mL, and the volume ratio of water and methyl alcohol is 1:1;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 50mg/mL, the concentration of the aqueous solution of described surfactant PVP is 45mg/mL, then by the aqueous solution of isopyknic chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 10:1, and the mass ratio of surfactant PVP and catalyst carrier is 5:1; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant PVP by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Embodiment 2:
(step 1) preparation catalyst carrier α ﹣ Fe
2o
3/ RGO solution: by catalyst carrier α ﹣ Fe
2o
3uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 5 mg/mL, and the volume ratio of water and methyl alcohol is 1:3;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 100mg/mL, the concentration of the aqueous solution of described surfactant PVP is 80mg/mL, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 20:1, and the mass ratio of surfactant PVP and catalyst carrier is 10:1; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Embodiment 3:
(step 1) preparation catalyst carrier TiO
2/ RGO solution: by catalyst carrier TiO
2uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 10mg/mL, and the volume ratio of water and methyl alcohol is 3:1;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 5mg/mL, the concentration of the aqueous solution of described surfactant PVP is 3mg/mL, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 2:5, and the mass ratio of surfactant PVP and catalyst carrier is 1:10; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Embodiment 4:
(step 1) preparation catalyst carrier TiO
2/ RGO solution: by catalyst carrier TiO
2uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 1mg/mL, and the volume ratio of water and methyl alcohol is 1:1;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 25mg/mL, the concentration of the aqueous solution of described surfactant PVP is 30mg/mL, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 1:10, and the mass ratio of surfactant PVP and catalyst carrier is 20:1; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Embodiment 5:
(step 1) preparation catalyst carrier Al
2o
3/ RGO solution: by catalyst carrier Al
2o
3uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 8mg/mL, and the volume ratio of water and methyl alcohol is 2:3;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 60mg/mL, the concentration of the aqueous solution of described surfactant PVP is 45mg/mL, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 20:1, and the mass ratio of surfactant PVP and catalyst carrier is 5:1; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
Embodiment 6:
(step 1) preparation catalyst carrier Al
2o
3/ RGO solution: by catalyst carrier Al
2o
3uniform stirring in the mixed solution of the water-soluble and methyl alcohol of/RGO, the concentration of catalyst carrier is 2.5mg/mL, and the volume ratio of water and methyl alcohol is 3:4;
(step 2) prepares the aqueous solution of chloroplatinic acid and surfactant PVP respectively, the concentration of the aqueous solution of described chloroplatinic acid is 15mg/mL, the concentration of the aqueous solution of described surfactant PVP is 30mg/mL, then by the aqueous solution of equal-volume chloroplatinic acid and surfactant PVP simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 5:1, and the mass ratio of surfactant PVP and catalyst carrier is 1:2; With radiation of visible light solution 90min while injecting.
(step 3) illumination different time sections samples, and is then detected the decomposition situation of different time sections surfactant by uv-vis spectra, i.e. the photocatalysis effect of Pt particle on carrier.
This method is not limited to only prepare Pt particle, and other precious metal salts are all passable.
Claims (10)
1. catalyst carrier, is characterized in that the Graphene including metal oxide and doping.
2. catalyst carrier according to claim 1, is characterized in that described metal oxide is particle or fibrous α ﹣ Fe
2o
3, TiO
2or Al
2o
3deng ceramic nano semi-conducting material.
3. catalyst carrier according to claim 1, is characterized in that described metal oxide is the carrier with photocatalytic activity.
4. catalyst carrier according to claim 2, it is characterized in that described metal oxide particle or fiber are prepared by method of electrostatic spinning, graphene oxide is standby by Hummer legal system.
5. catalyst carrier according to claim 1, is characterized in that the mass ratio of metal oxide and Graphene in the metal oxide of described doped graphene is 20-1.
6. catalyst carrier according to claim 1, is characterized in that the doping method of the metal oxide of described doped graphene is hydro-thermal method.
7. the arbitrary described catalyst carrier of claim 1 ~ 6 increases the application in noble metal cermet caltalyst activity at photocatalytic method.
8. catalyst carrier increases the application in noble metal cermet caltalyst activity at photocatalytic method according to claim 7, it is characterized in that step is:
Preparation catalyst supporting solution: by water-soluble for catalyst carrier with in the mixed solution of methyl alcohol, the concentration of catalyst carrier is 0.1-10mg/mL, and the volume ratio of water and methyl alcohol is 1/3-3;
Prepare the aqueous solution of chloroplatinic acid and surfactant respectively, the concentration of the aqueous solution of described chloroplatinic acid is 100-1mg/mL, and the concentration of the aqueous solution of described surfactant is 100-1mg/mL; Then by the aqueous solution of equal-volume chloroplatinic acid and surfactant simultaneously injecting catalyst carrier solution, wherein the mass ratio of chloroplatinic acid and catalyst carrier is 20-0.1, and the mass ratio of surfactant and catalyst carrier is 20-0.1; Use up while injecting and irradiate solution 15 ~ 90min.
9. catalyst carrier increases the application in noble metal cermet caltalyst activity at photocatalytic method according to claim 8, it is characterized in that described surfactant is PVP or PVA.
10. catalyst carrier increases the application in noble metal cermet caltalyst activity at photocatalytic method according to claim 8, it is characterized in that described illumination penetrates the light source of use for ultraviolet light or visible ray; In catalyst carrier, the size of Pt nano particle is 1-5nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410633672.6A CN104307576A (en) | 2014-11-12 | 2014-11-12 | Catalyst carrier and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410633672.6A CN104307576A (en) | 2014-11-12 | 2014-11-12 | Catalyst carrier and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104307576A true CN104307576A (en) | 2015-01-28 |
Family
ID=52362968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410633672.6A Pending CN104307576A (en) | 2014-11-12 | 2014-11-12 | Catalyst carrier and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104307576A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688972A (en) * | 2016-04-12 | 2016-06-22 | 南通职业大学 | Preparation method of efficient composite photo-catalyst of mesoporous-alpha-ferric oxide/nitrogen-doped reduced graphene |
| CN105854881A (en) * | 2016-05-05 | 2016-08-17 | 南通职业大学 | Preparation method of visible light type mesoporous cuprous oxide-reduced graphene composite catalyst |
| CN107096519A (en) * | 2017-05-25 | 2017-08-29 | 浙江工业职业技术学院 | A kind of platinum dopant nano titanium dioxide photocatalyst |
| CN111346632A (en) * | 2020-04-27 | 2020-06-30 | 山西恒投环保节能科技有限公司 | Catalyst composition for improving boiler thermal efficiency and reducing nitrogen oxide emission |
| CN112156776A (en) * | 2020-09-28 | 2021-01-01 | 河北科技师范学院 | Porous ceramic load Ag/TiO2Preparation method of (1) |
| CN114471545A (en) * | 2022-03-25 | 2022-05-13 | 上海大学 | Noble metal-graphene oxide-based composite catalyst and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09262473A (en) * | 1996-03-29 | 1997-10-07 | Mitsubishi Heavy Ind Ltd | Iron oxide photocatalyst and production of hydrogen using the same |
| CN102527366A (en) * | 2012-01-12 | 2012-07-04 | 北京交通大学 | Titanium dioxide nanotube graphene mixed photocatalyst and preparation method thereof |
| CN102658108A (en) * | 2012-05-04 | 2012-09-12 | 东南大学 | Method for preparing photocatalytic filtering membrane based on graphene/semiconductor by an electrospinning method |
-
2014
- 2014-11-12 CN CN201410633672.6A patent/CN104307576A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09262473A (en) * | 1996-03-29 | 1997-10-07 | Mitsubishi Heavy Ind Ltd | Iron oxide photocatalyst and production of hydrogen using the same |
| CN102527366A (en) * | 2012-01-12 | 2012-07-04 | 北京交通大学 | Titanium dioxide nanotube graphene mixed photocatalyst and preparation method thereof |
| CN102658108A (en) * | 2012-05-04 | 2012-09-12 | 东南大学 | Method for preparing photocatalytic filtering membrane based on graphene/semiconductor by an electrospinning method |
Non-Patent Citations (1)
| Title |
|---|
| YUNQIAN DAI ET AL.: "New versatile Pt supports composed of graphene sheets decorated by Fe2O3 nanorods and N-dopants with high activity based on improved metal/supports interaction", 《JOURNAL OF MATERIALS CHEMISTRY A》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105688972A (en) * | 2016-04-12 | 2016-06-22 | 南通职业大学 | Preparation method of efficient composite photo-catalyst of mesoporous-alpha-ferric oxide/nitrogen-doped reduced graphene |
| CN105688972B (en) * | 2016-04-12 | 2019-02-12 | 南通职业大学 | Mesoporous-α-di-iron trioxide/nitrating reduced graphene high-efficiency composite photocatalyst preparation method |
| CN105854881A (en) * | 2016-05-05 | 2016-08-17 | 南通职业大学 | Preparation method of visible light type mesoporous cuprous oxide-reduced graphene composite catalyst |
| CN105854881B (en) * | 2016-05-05 | 2019-02-12 | 南通职业大学 | The mesoporous cuprous oxide of visible light type/reduced graphene composite catalyst preparation method |
| CN107096519A (en) * | 2017-05-25 | 2017-08-29 | 浙江工业职业技术学院 | A kind of platinum dopant nano titanium dioxide photocatalyst |
| CN111346632A (en) * | 2020-04-27 | 2020-06-30 | 山西恒投环保节能科技有限公司 | Catalyst composition for improving boiler thermal efficiency and reducing nitrogen oxide emission |
| CN111346632B (en) * | 2020-04-27 | 2023-12-15 | 山西恒投环保节能科技有限公司 | Catalyst composition for improving thermal efficiency of boiler and reducing emission of nitrogen oxides |
| CN112156776A (en) * | 2020-09-28 | 2021-01-01 | 河北科技师范学院 | Porous ceramic load Ag/TiO2Preparation method of (1) |
| CN112156776B (en) * | 2020-09-28 | 2022-05-27 | 河北科技师范学院 | Porous ceramic load Ag/TiO2Preparation method of (1) |
| CN114471545A (en) * | 2022-03-25 | 2022-05-13 | 上海大学 | Noble metal-graphene oxide-based composite catalyst and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Defective WO3 nanoplates controllably decorated with MIL-101 (Fe) nanoparticles to efficiently remove tetracycline hydrochloride by S-scheme mechanism | |
| CN104307576A (en) | Catalyst carrier and application thereof | |
| Zhang et al. | Novel 3DOM-SrTiO3/Ag/Ag3PO4 ternary Z-scheme photocatalysts with remarkably improved activity and durability for contaminant degradation | |
| Zhang et al. | α-Fe2O3 nanoclusters confined into UiO-66 for efficient visible-light photodegradation performance | |
| Wang et al. | Indirect Z-scheme BiOI/g-C3N4 photocatalysts with enhanced photoreduction CO2 activity under visible light irradiation | |
| Jia et al. | Aerosol-sprayed gold/ceria photocatalyst with superior plasmonic hot electron-enabled visible-light activity | |
| Yang et al. | Preparation and enhanced visible-light photocatalytic activity of silver deposited graphitic carbon nitride plasmonic photocatalyst | |
| Primo et al. | Titania supported gold nanoparticles as photocatalyst | |
| Ghoreishian et al. | γ-Radiolysis as a highly efficient green approach to the synthesis of metal nanoclusters: a review of mechanisms and applications | |
| Li et al. | Sandwich-like TiO2@ ZnO-based noble metal (Ag, Au, Pt, or Pd) for better photo-oxidation performance: Synergistic effect between noble metal and metal oxide phases | |
| Qian et al. | Enhanced photocatalytic H2 production on three-dimensional porous CeO2/carbon nanostructure | |
| Umer et al. | Montmorillonite dispersed single wall carbon nanotubes (SWCNTs)/TiO2 heterojunction composite for enhanced dynamic photocatalytic H2 production under visible light | |
| CN107537543B (en) | Preparation method of N-Au-Ag co-doped nano titanium dioxide photocatalyst | |
| Liu et al. | Construction of a novel Z-scheme heterojunction with molecular grafted carbon nitride nanosheets and V2O5 for highly efficient photocatalysis | |
| Kumar et al. | Photocatalytic degradation of organic dyes: Pd-γ-Al 2 O 3 and PdO-γ-Al 2 O 3 as potential photocatalysts | |
| CN107790159B (en) | Photocatalyst for high-selectivity catalytic oxidation of alcohol into aldehyde and preparation and application thereof | |
| CN104941643A (en) | Preparation method of Ag-GQDs(Graphene Quantum Dots)/ZnO ternary photocatalyst | |
| CN105457629A (en) | Load type nano precious metal catalyst and preparation method and application thereof | |
| Lin et al. | Ultrasound-assisted synthesis of high-efficiency Ag3PO4/CeO2 heterojunction photocatalyst | |
| CN103480353A (en) | Method for synthesis of carbon quantum dot solution by hydrothermal process to prepare composite nano-photocatalyst | |
| Zhang et al. | TiO2 nanorods loaded with AuPt alloy nanoparticles for the photocatalytic oxidation of benzyl alcohol | |
| CN105771980A (en) | Graphene/silver/mesoporous titanium dioxide nanometer composite photocatalyst and preparation technology thereof | |
| Guan et al. | Controlled synthesis of Ag-coated TiO2 nanofibers and their enhanced effect in photocatalytic applications | |
| Chauhan et al. | Synthesis of nitrogen & palladium co-doped mesoporous titanium dioxide nanoparticles via evaporation induced self assembly method and study of their photocatalytic properties | |
| Xue et al. | In situ growth of MIL-88A into polyacrylate and its application in highly efficient photocatalytic degradation of organic pollutants in water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |