CN104190398A - Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof - Google Patents
Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof Download PDFInfo
- Publication number
- CN104190398A CN104190398A CN201410501769.1A CN201410501769A CN104190398A CN 104190398 A CN104190398 A CN 104190398A CN 201410501769 A CN201410501769 A CN 201410501769A CN 104190398 A CN104190398 A CN 104190398A
- Authority
- CN
- China
- Prior art keywords
- visible light
- photochemical catalyst
- preparation
- photocatalyst
- powder
- 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
Landscapes
- Catalysts (AREA)
Abstract
The invention discloses visible light responding photocatalyst Bi2Sm4Ti5O19 and a preparation method thereof. The chemical formula of the photocatalyst is Bi2Sm4Ti5O19. The invention further discloses a preparation method of the photocatalyst. The photocatalyst has the advantages of being wide in spectral response range, high in light conversion efficiency and good in stability, and has the effects of decomposing harmful chemical and organic biomass and sterilization in the condition of visible light irradiation; in addition, the preparation method is simple, the synthesis temperature is low, the cost is low, and the method is applicable to industrial production and application.
Description
Technical field
The present invention relates to a kind of visible light-responded photochemical catalyst Bi
2sm
4ti
5o
19and 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.A series of niobiums (tantalum) hydrochlorate photochemical catalyst is because the photocatalytic activity having compared with high is widely studied.For example, niobate photocatalyst Pb
3nb
4o
13, BiNbO
4and Bi
2mNbO
7(M=Al, Ga, In, Y, rare earth element and Fe) etc. with niobium potassium compound oxide photocatalyst as KNbO
3, KNb
3o
8, K
4nb
6o
17and K
6nb
10.6o
30deng all thering is good photocatalysis performance.
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 spectral response range is narrow, so research and develop the new visible light-responded high efficiency photocatalyst that has, be very necessary.We are to consisting of Bi
2la
4ti
5o
19, Bi
2nd
4ti
5o
19, Bi
2sm
4ti
5o
19, Bi
2y
4ti
5o
19compound carried out Photocatalytic Performance Study, found that Bi
2sm
4ti
5o
19band gap be 2.71 eV, there is excellent visible light-responded photocatalysis performance, the band gap width of other sample is all greater than 3.0eV, can only under ultraviolet irradiation, just can show activity.
Summary of the invention
The object of this invention is to provide a kind of visible light-responded photochemical catalyst Bi that has
2sm
4ti
5o
19and preparation method thereof.
The chemical constitution formula with visible light-responded photochemical catalyst the present invention relates to is: Bi
2sm
4ti
5o
19.
Preparation method's concrete steps of above-mentioned visible light-responded photochemical catalyst are:
(1) by 99.9% analytically pure chemical raw material Bi
2o
3, Sm
2o
3and TiO
2starting powder press Bi
2sm
4ti
5o
19composition weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and distilled water, 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 800 ~ 850 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball milling, average diameter of particles diminished, and lower than 2 μ m, obtains Bi
2sm
4ti
5o
19powder.
The spectral response range of the photochemical catalyst that the present invention obtains is wide, and the high and good stability of light conversion efficiency has the effect of decomposing harmful chemical, organic-biological matter and sterilization under radiation of visible light; Preparation method is simple in addition, synthesis temperature is low, and cost is low, is applicable to industrial production and application.
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 grinding means.
3, photocatalysis experiment of the present invention is usingd methyl orange as simulation organic pollution, and its concentration is 20mg/L; Photochemical catalyst Bi
2sm
4ti
5o
19addition 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 60 minutes.
Embodiment 1:
(1) by 99.9% analytically pure chemical raw material Bi
2o
3, Sm
2o
3and TiO
2starting powder press Bi
2sm
4ti
5o
19composition weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and distilled water, 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 800 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball milling, average diameter of particles diminished, and lower than 2 μ m, obtains Bi
2sm
4ti
5o
19powder.
Prepared photochemical catalyst, is greater than at wavelength under the radiation of visible light of 420nm, methyl orange clearance is reached to 97.8% in 60 minutes.
Embodiment 2:
(1) by 99.9% analytically pure chemical raw material Bi
2o
3, Sm
2o
3and TiO
2starting powder press Bi
2sm
4ti
5o
19composition weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and distilled water, 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 830 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball milling, average diameter of particles diminished, and lower than 2 μ m, obtains Bi
2sm
4ti
5o
19powder.
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 60 minutes.
Embodiment 3:
(1) by 99.9% analytically pure chemical raw material Bi
2o
3, Sm
2o
3and TiO
2starting powder press Bi
2sm
4ti
5o
19composition weigh batching.
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and distilled water, 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 850 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball milling, average diameter of particles diminished, and lower than 2 μ m, obtains Bi
2sm
4ti
5o
19powder.
Prepared photochemical catalyst, is greater than at wavelength under the radiation of visible light of 420nm, and 60min 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, the chemical constitution formula that it is characterized in that described photochemical catalyst is Bi
2sm
4ti
5o
19;
Preparation method's concrete steps of described photochemical catalyst are:
(1) by 99.9% analytically pure chemical raw material Bi
2o
3, Sm
2o
3and TiO
2starting powder press Bi
2sm
4ti
5o
19composition weigh batching;
(2) raw material step (1) being prepared mixes, and puts into ball grinder, adds zirconia ball and distilled water, 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 800 ~ 850 ℃ of pre-burnings, and is incubated 6 hours, naturally cools to room temperature, then by ball milling, makes average diameter of particles lower than 2 μ m, obtains Bi
2sm
4ti
5o
19powder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410501769.1A CN104190398A (en) | 2014-09-27 | 2014-09-27 | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410501769.1A CN104190398A (en) | 2014-09-27 | 2014-09-27 | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN104190398A true CN104190398A (en) | 2014-12-10 |
Family
ID=52075848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410501769.1A Pending CN104190398A (en) | 2014-09-27 | 2014-09-27 | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN104190398A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105251501A (en) * | 2015-11-19 | 2016-01-20 | 桂林理工大学 | Visible-light responding photocatalyst Li4Sm2NiTiO8 and preparation method thereof |
CN105268430A (en) * | 2015-10-10 | 2016-01-27 | 桂林理工大学 | Visible light responsive photocatalyst BaLiEu2VO7 and preparation method thereof |
CN106179306A (en) * | 2016-06-26 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li5zn8in5ge9o36and preparation method thereof |
CN106179298A (en) * | 2016-07-25 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li2in4ti3o13and preparation method thereof |
CN106179307A (en) * | 2016-06-27 | 2016-12-07 | 桂林理工大学 | The photocatalyst Li that a kind of high-efficient wide-frequency is visible light-responded3gaSnO5and preparation method thereof |
CN106179309A (en) * | 2016-07-18 | 2016-12-07 | 桂林理工大学 | The photocatalyst Li AlSn that a kind of high-efficient wide-frequency is visible light-responded2o6and preparation method thereof |
CN106179371A (en) * | 2016-07-19 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li2caCuGeO5and preparation method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1899688A (en) * | 2006-07-27 | 2007-01-24 | 上海交通大学 | Solid solution light catalyst capable of responding visible light |
CN101670285A (en) * | 2009-09-16 | 2010-03-17 | 桂林理工大学 | Visible light responding Bi-system composite oxide photocatalyst Bi2-xRxO3 and preparation method |
CN103521212A (en) * | 2013-10-23 | 2014-01-22 | 桂林理工大学 | Photocatalyst Sm2LiVO6 with visible light response and preparation method thereof |
CN103894217A (en) * | 2014-04-11 | 2014-07-02 | 桂林理工大学 | Photocatalyst Bi2TiP2O10 capable of responding to visible light and preparation method for photocatalyst Bi2TiP2O10 |
CN103920515A (en) * | 2014-04-11 | 2014-07-16 | 桂林理工大学 | Visible-light-responsive photocatalyst BiTiPO6 and preparation method thereof |
-
2014
- 2014-09-27 CN CN201410501769.1A patent/CN104190398A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1899688A (en) * | 2006-07-27 | 2007-01-24 | 上海交通大学 | Solid solution light catalyst capable of responding visible light |
CN101670285A (en) * | 2009-09-16 | 2010-03-17 | 桂林理工大学 | Visible light responding Bi-system composite oxide photocatalyst Bi2-xRxO3 and preparation method |
CN103521212A (en) * | 2013-10-23 | 2014-01-22 | 桂林理工大学 | Photocatalyst Sm2LiVO6 with visible light response and preparation method thereof |
CN103894217A (en) * | 2014-04-11 | 2014-07-02 | 桂林理工大学 | Photocatalyst Bi2TiP2O10 capable of responding to visible light and preparation method for photocatalyst Bi2TiP2O10 |
CN103920515A (en) * | 2014-04-11 | 2014-07-16 | 桂林理工大学 | Visible-light-responsive photocatalyst BiTiPO6 and preparation method thereof |
Non-Patent Citations (1)
Title |
---|
林雪等: "Bi3.25Sm0.75Ti3O12纳米线的水热合成及可见光催化性能", 《无机化学学报》, vol. 29, no. 3, 31 March 2013 (2013-03-31) * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105268430A (en) * | 2015-10-10 | 2016-01-27 | 桂林理工大学 | Visible light responsive photocatalyst BaLiEu2VO7 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 |
CN106179306A (en) * | 2016-06-26 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li5zn8in5ge9o36and preparation method thereof |
CN106179307A (en) * | 2016-06-27 | 2016-12-07 | 桂林理工大学 | The photocatalyst Li that a kind of high-efficient wide-frequency is visible light-responded3gaSnO5and preparation method thereof |
CN106179309A (en) * | 2016-07-18 | 2016-12-07 | 桂林理工大学 | The photocatalyst Li AlSn that a kind of high-efficient wide-frequency is visible light-responded2o6and preparation method thereof |
CN106179371A (en) * | 2016-07-19 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li2caCuGeO5and preparation method thereof |
CN106179298A (en) * | 2016-07-25 | 2016-12-07 | 桂林理工大学 | Visible light-responded photocatalyst Li2in4ti3o13and preparation method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN104069866A (en) | Photocatalyst LiCu2V3O10 in response to visible light and preparation method thereof | |
CN104190398A (en) | Visible light responding photocatalyst Bi2Sm4Ti5O19 and preparation method thereof | |
CN104069865A (en) | Photocatalyst LiFe2V3O11 in response to visible light and preparation method thereof | |
CN104368330A (en) | Photocatalyst Li2Bi3Nb7O23 with visible light response and preparation method thereof | |
CN103521210A (en) | Photocatalyst Bi3Sb3Zn2O14 with visible light response | |
CN103433049A (en) | Visible-light-responsive photocatalyst CaCuV2O7 and preparation method thereof | |
CN104043444A (en) | Visible light responsive photocatalyst Li2ZnW2O8 and preparation method thereof | |
CN103521213A (en) | Photocatalyst LiLaV2O7 with visible-light response and preparation method thereof | |
CN104190400A (en) | Visible light responding photocatalyst Ca3La4V2O14 and preparation method thereof | |
CN104258844A (en) | Photocatalyst YVWO7 capable of responding visible light and preparation method of photocatalyst YVWO7 | |
CN103551163A (en) | Visible-light response photocatalyst Bi2Fe2W3O15 as well as preparation method thereof | |
CN104190404B (en) | Visible light-responded photochemical catalyst SmNbMo2O10And preparation method thereof | |
CN103480364A (en) | Photocatalyst La responsive to visible light7Nb3W4O30And method for preparing the same | |
CN104275199A (en) | Visible light responding fluorine-containing photocatalyst and preparation method thereof | |
CN104324725A (en) | Visible-light response light catalyst Li2Si3Ta8O27 and preparation method thereof | |
CN103877967A (en) | Visible-light response photocatalyst Li3Nb3Bi2O12 and preparation method thereof | |
CN104190407A (en) | Visible light responding photocatalyst SrBi2W6O22 and preparation method thereof | |
CN104324719A (en) | Visible light responding photocatalyst and preparation method thereof | |
CN104307509A (en) | Visible light responding photocatalyst Li3LaWO6 and preparation method thereof | |
CN104275176A (en) | Visible light responding photocatalyst Ca3Nb3V5O23 and preparation method thereof | |
CN104307532A (en) | Visible-light response photocatalyst CuSnW2O9 and preparation method thereof | |
CN104001530A (en) | Visible-light-responsive photocatalyst LiVP2O8 and preparation method thereof | |
CN104001527A (en) | Visible-light-responsive photocatalyst Li3Ti2PO8 and preparation method thereof | |
CN103521231A (en) | Photocatalyst Ba25Cu18Zn4O47 with visible light response and preparation method thereof | |
CN103418370A (en) | Visible-light responsive photocatalyst Ca3WO6 and preparing 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 | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141210 |
|
RJ01 | Rejection of invention patent application after publication |