CN103521212A - Photocatalyst Sm2LiVO6 with visible light response and preparation method thereof - Google Patents
Photocatalyst Sm2LiVO6 with visible light response and preparation method thereof Download PDFInfo
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- CN103521212A CN103521212A CN201310502307.7A CN201310502307A CN103521212A CN 103521212 A CN103521212 A CN 103521212A CN 201310502307 A CN201310502307 A CN 201310502307A CN 103521212 A CN103521212 A CN 103521212A
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- CN
- China
- Prior art keywords
- livo
- visible light
- photochemical catalyst
- preparation
- photocatalyst
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Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000011941 photocatalyst Substances 0.000 title abstract description 7
- 230000004298 light response Effects 0.000 title abstract 2
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000003054 catalyst Substances 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 13
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 7
- 230000003292 diminished effect Effects 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000000498 ball milling Methods 0.000 claims description 5
- 239000013064 chemical raw material Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical group O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 7
- 230000001699 photocatalysis Effects 0.000 description 6
- 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 4
- 229940012189 methyl orange Drugs 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- 239000003905 agrochemical Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001621 bismuth Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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- Catalysts (AREA)
Abstract
The invention discloses a photocatalyst Sm2LiVO6 with visible light response and a preparation method thereof. The chemical composition formula of the photocatalyst is Sm2LiVO6. The invention also discloses the preparation method of the material. The preparation method is simple and is low in cost. The prepared photocatalyst has excellent catalytic performance, has the function of decomposing harmful chemical substances when irradiated by visible light and has good stability and good application prospect.
Description
Technical field
The present invention relates to a kind of visible light-responded photochemical catalyst Sm
2liVO
6and preparation method thereof, belong to inorganic field of photocatalytic material.
Background technology
Along with socioeconomic development, people more and more pay close attention to for the energy and ecological environment, solve energy shortage and problem of environmental pollution and be realize sustainable development, improve people's living standard and safeguard national security in the urgent need to.
From phase late 1970s, people proposed to utilize in photochemical catalyst decomposition water and atmosphere in agricultural chemicals and the organic matter such as odorant, and application examples such as self-cleaning that scribble the surface of solids of photochemical catalyst.The principle of light-catalyzed reaction is that photochemical catalyst is after the photon having absorbed higher than its band-gap energy, hole and electronics have been generated, these holes and electronics carry out respectively oxidation reaction and reduction reaction, reach the object of decomposing harmful chemical, organic-biological matter and sterilization.Photochemical catalyst has many kinds, and wherein most representative is titanium dioxide (TiO
2), utilized titanium dioxide to decompose organic matters such as the agricultural chemicals in water and in atmosphere and odorants, yet the band gap of titanium dioxide is 3.2eV, only under the ultraviolet irradiation shorter than 400nm, just can show activity, can only be indoor or have a local work of uviol lamp, almost can not utilize visible ray, this has limited the use of titanium dioxide optical catalyst greatly.
Consider the practicality of photochemical catalyst in decomposing harmful substances, utilizing sunshine is indispensable as light source.Irradiation is maximum near sunshine medium wavelength visible light intensity 500nm on earth's surface, wavelength is that the energy of the visible region of 400nm ~ 750nm is approximately 43% of sunshine gross energy, so for efficient utilization, the R and D of bismuth series photocatalyst have obtained a series of great achievements, and bismuthous compound is as BiVO
4, Bi
2moO
6, Bi
2mo
2o
9, Bi
2mo
3o
12and Bi
2wO
4be reported in and under visible ray, there is good absorption.
Although photocatalysis research has been carried out the several years, but at present report to have visible light-responded photochemical catalyst kind still very limited, still exist that light conversion efficiency is low, poor stability and the problem such as spectrum respective range is narrow, so research and develop the new visible light-responded high efficiency photocatalyst that has, be very necessary.We are to vanadate La
2liVO
6, Nd
2liVO
6and Sm
2liVO
6deng the Photocatalytic Performance Study of having carried out visible ray section, found that Sm
2liVO
6there is excellent visible light-responded photocatalysis performance, but La
2liVO
6and Nd
2liVO
6but do not there is visible light-responded photocatalysis performance.
Summary of the invention
The object of this invention is to provide a kind of visible light-responded photochemical catalyst Sm that has
2liVO
6and preparation method thereof.
The chemical constitution formula with visible light-responded photochemical catalyst the present invention relates to is: Sm
2liVO
6.
Preparation method's concrete steps of described photochemical catalyst are:
(1) by 99.9% analytically pure chemical raw material Sm
2o
3, Li
2cO
3and V
2o
5, press Sm
2liVO
6chemical formula weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and absolute ethyl alcohol, and ball milling 8 hours, is mixed and finely ground, and takes out and dries, and crosses 200 mesh sieves.
(3) powder step (2) being mixed is 950 ~ 980 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball mill pulverizing means, particle diameter diminished, and lower than 2 μ m, obtains Sm
2liVO
6powder.
Preparation method of the present invention is simple, cost is low, and the photochemical catalyst of preparation has good catalytic performance, has the effect of decomposing harmful chemical, organic-biological matter and sterilization under radiation of visible light.
The specific embodiment
To be specifically described the present invention below:
1, the composite oxides in order to obtain using in the present invention, are first used solid-phase synthesis to prepare powder, the various oxides as raw material or carbonate measured than mixing according to target constitutional chemistry, more synthetic in air atmosphere under normal pressure.
2, in order effectively to utilize light, the size of the photochemical catalyst in the present invention is preferably in micron level, or even nano particle, and specific area is larger.The oxide powder of preparing with solid-phase synthesis, its particle is compared with large and surface area is less, but can particle diameter be diminished by ball mill pulverizing means.
3, photocatalysis experiment of the present invention is usingd methyl orange as simulation organic pollution, and its concentration is 20mg/L; Photochemical catalyst Sm
2liVO
6addition be 1g/L; Light source is used the xenon lamp of 300W, and the vessel that reactive tank is used pyrex to make, obtain by wave filter the light that wavelength is greater than 420nm long wavelength, then irradiate photochemical catalyst; Catalysis time is set as 120 minutes.
Embodiment 1:
(1) by 99.9% analytically pure chemical raw material Sm
2o
3, Li
2cO
3and V
2o
5, press Sm
2liVO
6chemical formula weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and absolute ethyl alcohol, and ball milling 8 hours, is mixed and finely ground, and takes out and dries, and crosses 200 mesh sieves.
(3) powder step (2) being mixed is 950 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball mill pulverizing means, particle diameter diminished, and lower than 2 μ m, obtains Sm
2liVO
6powder.
Prepared photochemical catalyst, is greater than at wavelength under the radiation of visible light of 420nm, methyl orange clearance is reached to 98.3% in 120 minutes.
Embodiment 2:
(1) by 99.9% analytically pure chemical raw material Sm
2o
3, Li
2cO
3and V
2o
5, press Sm
2liVO
6chemical formula weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and absolute ethyl alcohol, and ball milling 8 hours, is mixed and finely ground, and takes out and dries, and crosses 200 mesh sieves.
(3) powder step (2) being mixed is 960 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball mill pulverizing means, particle diameter diminished, and lower than 2 μ m, obtains Sm
2liVO
6powder.
Prepared photochemical catalyst, is greater than at wavelength under the radiation of visible light of 420nm, methyl orange clearance is reached to 98.6% in 120 minutes.
Embodiment 3:
(1) by 99.9% analytically pure chemical raw material Sm
2o
3, Li
2cO
3and V
2o
5, press Sm
2liVO
6chemical formula weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and absolute ethyl alcohol, and ball milling 8 hours, is mixed and finely ground, and takes out and dries, and crosses 200 mesh sieves.
(3) powder step (2) being mixed is 980 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball mill pulverizing means, particle diameter diminished, and lower than 2 μ m, obtains Sm
2liVO
6powder.
Prepared photochemical catalyst, is greater than at wavelength under the radiation of visible light of 420nm, and 120min reaches 98.1% to methyl orange clearance.
The present invention is never limited to above embodiment.The bound of each temperature, interval value can realize the present invention, at this, do not enumerate embodiment.
The made photocatalyst powder of above inventive embodiments can be carried on multiple matrix surface.Matrix can be glass, pottery, active carbon or quartz sand etc., and photochemical catalyst can be carried on matrix surface with the form of film.
Claims (1)
1. a visible light-responded photochemical catalyst, is characterized in that the chemical constitution formula of described photochemical catalyst is: Sm
2liVO
6;
Preparation method's concrete steps of described photochemical catalyst are:
(1) by 99.9% analytically pure chemical raw material Sm
2o
3, Li
2cO
3and V
2o
5, press Sm
2liVO
6chemical formula weigh batching;
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and absolute ethyl alcohol, and ball milling 8 hours, is mixed and finely ground, and takes out and dries, and crosses 200 mesh sieves;
(3) powder step (2) being mixed is 950 ~ 980 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball mill pulverizing means, particle diameter diminished, and lower than 2 μ m, obtains Sm
2liVO
6powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502307.7A CN103521212B (en) | 2013-10-23 | 2013-10-23 | Visible light-responded photochemical catalyst Sm 2liVO 6and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502307.7A CN103521212B (en) | 2013-10-23 | 2013-10-23 | Visible light-responded photochemical catalyst Sm 2liVO 6and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103521212A true CN103521212A (en) | 2014-01-22 |
| CN103521212B CN103521212B (en) | 2016-03-02 |
Family
ID=49923778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502307.7A Active CN103521212B (en) | 2013-10-23 | 2013-10-23 | Visible light-responded photochemical catalyst Sm 2liVO 6and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103521212B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190398A (en) * | 2014-09-27 | 2014-12-10 | 桂林理工大学 | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof |
| CN104667905A (en) * | 2015-02-28 | 2015-06-03 | 桂林理工大学 | Photocatalyst LiSm2NbO6 with visible light response and preparation method thereof |
| CN104744040A (en) * | 2015-03-26 | 2015-07-01 | 桂林理工大学 | Temperature-stable microwave dielectric ceramic LiNd2VO6 with ultralow dielectric constant |
| CN104874388A (en) * | 2015-05-23 | 2015-09-02 | 桂林理工大学 | Visible light responding photocatalyst SrLi3SmV8O24 and preparation method thereof |
| CN105251501A (en) * | 2015-11-19 | 2016-01-20 | 桂林理工大学 | Visible-light responding photocatalyst Li4Sm2NiTiO8 and preparation method thereof |
| CN105268429A (en) * | 2015-10-10 | 2016-01-27 | 桂林理工大学 | Visible light responsive photocatalyst BaLi2SmVO6 and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055842A (en) * | 2013-01-19 | 2013-04-24 | 桂林理工大学 | Visible-light-response composite photocatalyst (Li3NbO4) containing lithium halite structure and preparation method thereof |
-
2013
- 2013-10-23 CN CN201310502307.7A patent/CN103521212B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055842A (en) * | 2013-01-19 | 2013-04-24 | 桂林理工大学 | Visible-light-response composite photocatalyst (Li3NbO4) containing lithium halite structure and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JIN-HO CHOY ET AL: "IR,Raman,and X-Ray Photoelectron Spectroscopy Investigations of the Ordered Cubic Perovskite La2LiVO6", 《JOURNAL OF SOLID STATE CHEMISTRY》 * |
| TINGTING LI ET AL: "Preparation and Characterization of Ag-Loaded SmVO4 for Photocatalysis Application", 《PHOTOCHEMISTRY AND PHOTOBIOLOGY》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104190398A (en) * | 2014-09-27 | 2014-12-10 | 桂林理工大学 | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof |
| CN104667905A (en) * | 2015-02-28 | 2015-06-03 | 桂林理工大学 | Photocatalyst LiSm2NbO6 with visible light response and preparation method thereof |
| CN104744040A (en) * | 2015-03-26 | 2015-07-01 | 桂林理工大学 | Temperature-stable microwave dielectric ceramic LiNd2VO6 with ultralow dielectric constant |
| CN104874388A (en) * | 2015-05-23 | 2015-09-02 | 桂林理工大学 | Visible light responding photocatalyst SrLi3SmV8O24 and preparation method thereof |
| CN105268429A (en) * | 2015-10-10 | 2016-01-27 | 桂林理工大学 | Visible light responsive photocatalyst BaLi2SmVO6 and preparation method thereof |
| CN105251501A (en) * | 2015-11-19 | 2016-01-20 | 桂林理工大学 | Visible-light responding photocatalyst Li4Sm2NiTiO8 and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103521212B (en) | 2016-03-02 |
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