CN103861634A - HZSM-5 loaded CoFe2O4 photocatalyst - Google Patents
HZSM-5 loaded CoFe2O4 photocatalyst Download PDFInfo
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- CN103861634A CN103861634A CN201210525056.XA CN201210525056A CN103861634A CN 103861634 A CN103861634 A CN 103861634A CN 201210525056 A CN201210525056 A CN 201210525056A CN 103861634 A CN103861634 A CN 103861634A
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- hzsm
- photochemical catalyst
- photocatalyst
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Abstract
The invention relates to a HZSM-5 loaded CoFe2O4 photocatalyst. A purpose of the present invention is make supporting of the photocatalyst. A method comprises the following steps: dissolving cobalt and iron nitrate by a certain amount of deionized water through CO<2+> and Fe<3+> with mol ratio of 1: 2, mixing while stirring, dipping HZSM-5 in the solution to obtain a precursor of the catalyst, heating and stirring the precursor under 70 DEG C, and evaporating moisture to a near-dry state, then drying under 120 DEG C to obtain a xerogel, cooling and grinding, and roasting for 4 hours under 600 DEG C to obtain the product.
Description
Technical field
The present invention relates to the synthetic of a kind of photochemical catalyst.
Background technology
Since first Fujishma and the Honda of Tokyo Univ Japan in 1972 report that adopting zinc oxide (ZnO) to be used for decomposition water as photochemical catalyst synthesizes hydrogen, make people fully see the application potential that photocatalysis is huge, and meanwhile photocatalysis technology has also received very big concern both domestic and external, and obtain great attention, the quantity research that has high input in this field one after another, thus the fast development of photocatalysis scientific basic research promoted.At present, countries in the world are also generally faced with the series of problems such as the energy and industrial chemicals shortage, and carbon dioxide is as a kind of potential carbon resource, and it has very large Research Significance and researching value.Over nearly 30 years, in conductor photocatalysis repercussion study, from TiO2 light hydrogen production by water decomposition, be extended to the application in spinelle field, started again research boom one.Photocatalytic reduction of carbon oxide is not only conducive to eliminate atmosphere greenhouse effects, can generate again Organic chemical products.TiO2 for the most representative catalysis material should, many researchers have confirmed its good photocatalysis characteristic, and by constantly research and utilization in succession both at home and abroad, the part but TiO2 itself also comes with some shortcomings, as: semiconductor carriers easily compound, quantum efficiency is low, and the scope of light absorption is mainly in ultra-violet (UV) band etc.Therefore, also just become a new study hotspot for finding novel photocatalyst.Spinel oxides is as a kind of novel photocatalyst, and its energy gap is less, higher to light utilization efficiency.But the activity of spinel-type photochemical catalyst is lower, but can improve by modification the activity of catalyst, and then improve the utilization rate to light.The activity of catalyst can be improved by doping and the load etc. of metallic element, the utilization rate to light can be improved.
Photocatalysis technology is the basic nanometer technology being born at 20 century 70s, and in China's Mainland, we can call photochemical catalyst with this popular word of photocatalyst.Typical natural light catalyst is exactly our common chlorophyll, promotes that airborne carbon dioxide and hydration become oxygen and carbohydrate in the photosynthesis of plant.Generally speaking nano photo-catalytic technology is a kind of nano bionic technology, for the depollution of environment, and self-cleaning material, advanced new forms of energy, treatment of cancer, multiple Disciplinary Frontiers such as high efficiency is antibacterial.Therefore receive people's concern.The patent No. 02129672.3 of representative, publication number CN1398665, open day 2003.02.26, name are called " a kind of synthetic method of nano-TiO * mesopore molecular sieve film photocatalyst " and relate to the synthetic of a kind of photochemical catalyst.Its feature is the preparation of meso titanium silica supporting mass; The preparation of isopropyl titanate-acetone soln; The preparation of titanium polymerization colloidal sol; TiO
2the preparation of film, it is that meso titanium silica supporting mass is dipped in to viscosity is 1.9～2.5 × 10
-4in the titanium polymerization colloidal sol of Pas, 0.5～2min, takes out natural dryingly, forms after gel layer and in vacuum drying chamber, is dried to constant weight through 44-52h, is fired to 630～670 DEG C, after taking-up, product is scattered to air cooling to room temperature, obtains nano-TiO
2mesopore molecular sieve film photocatalyst, the present invention synthesizes mesoporous titanium-silicon molecular screen and makes supporting mass, and its aperture is at 8.2nm left and right, specific area 620m
2/ g, for degradation water organic halogen, is conducive to promote nano-TiO
2the commercial application of semi-conducting material.
Summary of the invention
The object of the invention is to carrier of photocatalyst.The preparation method of photochemical catalyst of the present invention: with the Co of 1:2
2+, Fe
3+mol ratio, uses cobalt, iron nitrate respectively after a certain amount of deionized water dissolving, under agitation mixes.HZSM-5 is immersed in this solution, obtains the presoma of catalyst, by closely dry presoma heating evaporation moisture at 70 DEG C, the then dry xerogel that obtains at 120 DEG C, cooling, grinding, at 600 DEG C, roasting 4h, to obtain final product.
Detailed description of the invention
Detailed description of the invention one: the presoma of the photochemical catalyst described in present embodiment is prepared as to be used cobalt, iron nitrate respectively after a certain amount of deionized water dissolving, under agitation mixes.HZSM-5 is immersed in this solution, adds at a certain temperature thermal agitation transpiring moisture.
Detailed description of the invention two: the cobalt described in present embodiment, iron nitrate are the Co with 1:2
2+, Fe
3+prepared by mol ratio.
Detailed description of the invention three: the heating whipping temp described in present embodiment is 70 DEG C.
Detailed description of the invention four: the precursor described in present embodiment is the dry xerogel that obtains at 120 DEG C, cooling, grinding.
Claims (4)
1. a HZSM-5 load C oFe
2o
4photochemical catalyst, is characterized in that: the presoma of photochemical catalyst is prepared as analytically pure cobalt, iron nitrate respectively with after a certain amount of ultra-pure water dissolving, under agitation mixes two kinds of solution and obtains mixed solution; HZSM-5 is immersed in the solution by cobalt, the configuration of iron nitrate, adds at a certain temperature thermal agitation dry.
2. a kind of HZSM-5 load C oFe according to claim 1
2o
4photochemical catalyst, is characterized in that: described cobalt, the solution of iron nitrate configuration are the Co with 1:2
2+, Fe
3+mol ratio configuration.
3. according to a kind of HZSM-5 load C oFe described in claim 1-2
2o
4photochemical catalyst, is characterized in that: described heating whipping temp is 70 DEG C.
4. according to a kind of HZSM-5 load C oFe described in claim 1-3
2o
4photochemical catalyst, is characterized in that: described precursor continues the dry xerogel that obtains at 130 DEG C, and cooling, grinding obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525056.XA CN103861634A (en) | 2012-12-10 | 2012-12-10 | HZSM-5 loaded CoFe2O4 photocatalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210525056.XA CN103861634A (en) | 2012-12-10 | 2012-12-10 | HZSM-5 loaded CoFe2O4 photocatalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103861634A true CN103861634A (en) | 2014-06-18 |
Family
ID=50900997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210525056.XA Pending CN103861634A (en) | 2012-12-10 | 2012-12-10 | HZSM-5 loaded CoFe2O4 photocatalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103861634A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892196A (en) * | 2018-07-09 | 2018-11-27 | 沈阳理工大学 | A kind of preparation method of water-purifying material |
| CN109046446A (en) * | 2018-08-30 | 2018-12-21 | 河北科技大学 | A kind of metal oxide/HTS-1 titanium-silicon molecular sieve catalyst and its preparation method and application |
| CN113649003A (en) * | 2021-08-27 | 2021-11-16 | 陕西科技大学 | Ion-modified red mud-based heterojunction photocatalyst and preparation method and application thereof |
-
2012
- 2012-12-10 CN CN201210525056.XA patent/CN103861634A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108892196A (en) * | 2018-07-09 | 2018-11-27 | 沈阳理工大学 | A kind of preparation method of water-purifying material |
| CN108892196B (en) * | 2018-07-09 | 2020-12-29 | 沈阳理工大学 | Preparation method of water purification material |
| CN109046446A (en) * | 2018-08-30 | 2018-12-21 | 河北科技大学 | A kind of metal oxide/HTS-1 titanium-silicon molecular sieve catalyst and its preparation method and application |
| CN113649003A (en) * | 2021-08-27 | 2021-11-16 | 陕西科技大学 | Ion-modified red mud-based heterojunction photocatalyst and preparation method and application thereof |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140618 |