CN104722319A - Bismuth-doped silver chloride catalyst synthetic method - Google Patents
Bismuth-doped silver chloride catalyst synthetic method Download PDFInfo
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- CN104722319A CN104722319A CN201510158899.4A CN201510158899A CN104722319A CN 104722319 A CN104722319 A CN 104722319A CN 201510158899 A CN201510158899 A CN 201510158899A CN 104722319 A CN104722319 A CN 104722319A
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- bismuth
- photochemical catalyst
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Abstract
The invention relates to a photocatalyst and a synthetic method thereof, and belongs to the field of an inorganic photocatalysis material. The photocatalyst comprises bismuth-doped silver chloride. The prepared photocatalyst has optical catalytic activity in the wavelength range of 420nm to 800nm and can optically catalyze the oxidation and degradation of organic compounds under the radiation of visible light or natural light.
Description
Technical field
The present invention relates to a kind of novel photocatalyst.
The invention still further relates to the synthetic method of above-mentioned photochemical catalyst.
The invention still further relates to the application of above-mentioned photochemical catalyst.
Background technology
Semiconductor can produce light induced electron and hole under the exciting of light, light induced electron and oxygen can form superoxide radical, superoxide radical forms hydroxyl radical free radical further, and hydroxyl radical free radical has very strong oxidability, oxidation of organic compounds matter of thus can degrading.Photohole and hydroxyl also can form hydroxyl radical free radical simultaneously.But catalysis material conventional is at present titanium dioxide, and be merely able to by ultraviolet excitation, therefore, finding novel photochemical catalyst is the target that we pursue.Silver chlorate can form plasma under the radiation of visible ray, thus has good oxidability under visible light.How improving the oxidability of silver chlorate and stability is our problem demanding prompt solution, and this patent is exactly the catalysis material based on the stability and photo-catalysis capability design improving silver chlorate.
Summary of the invention
The object of the present invention is to provide a long-life novel photocatalyst of high activity, this photochemical catalyst can degradation of organic substances matter at visible region, and synthetic route is simple simultaneously, and cost is lower.
Photochemical catalyst provided by the invention is bismuth doping silver chlorate particle.
The synthetic method of bismuth doping silver chlorate photochemical catalyst provided by the invention is as follows:
A certain amount of silver nitrate is dissolved in a certain amount of deionized water, then adds a certain amount of ammoniacal liquor and form silver ammino solution.A small amount of bismuth nitrate is dissolved in dilute hydrochloric acid solution, under agitation dilute hydrochloric acid solution is added dropwise in silver ammino solution, produces a large amount of white precipitate immediately, after Keep agitation certain hour, the precipitate with deionized water of generation is washed neutrality, and suction filtration is dried and is obtained bismuth doping silver chlorate photochemical catalyst.
Photocatalysis performance test concrete grammar and condition as follows:
The activity research of photochemical catalyst carries out in homemade quartz reactor.Adopt 300W xenon lamp (λ > 400nm) to be radiating light source, reactant liquor is the methyl orange aqueous solution of 100mL 20mg/L, and the concentration of catalyst is 1g/L.Blast air bubble with the speed of 30mL/min, under the stirring continued, extract a small amount of reactant liquor every 2min, measure solution absorbance at 463nm place.Again according to the concentration-absorbance standard curve determination solution concentration of methyl orange.
Specific embodiments
Embodiment 1
The silver nitrate of 0.72g is dissolved in the ammoniacal liquor of 7.2mL 25wt.%, then 0.001mol bismuth nitrate is dissolved in 60mL 1mol/L aqueous hydrochloric acid solution, hydrochloric acid solution is slowly added dropwise in silver ammino solution, rapid generation precipitates in a large number, the precipitation suction filtration obtained, use distilled water and absolute ethanol washing successively, then 60 DEG C of vacuum drying 12h obtain corresponding photochemical catalyst.
Embodiment 2
0.001mol bismuth nitrate in embodiment 1 is changed into the bismuth nitrate of 0.0005mol, other condition is constant.
Embodiment 3
Change the bismuth nitrate in embodiment 1 into 0.002mol, other condition is constant.
Embodiment 4
Change the bismuth nitrate in embodiment 1 into 0.003mol, other condition is constant.
Embodiment 5
Change the bismuth nitrate in embodiment 1 into 0.004mol, other condition is constant.
Catalysis material obtained by the present invention can be carried on carrier, the invention is not restricted to above embodiment.
Claims (2)
1. bismuth doping silver chlorate photochemical catalyst, is characterized in that comprising following synthesis step:
A certain amount of silver nitrate is dissolved in a certain amount of deionized water, then adds a certain amount of ammoniacal liquor and form silver ammino solution.A small amount of bismuth nitrate is dissolved in dilute hydrochloric acid solution, under agitation dilute hydrochloric acid solution is added dropwise in silver ammino solution, produces a large amount of white precipitate immediately, after Keep agitation certain hour, the precipitate with deionized water of generation is washed neutrality, and suction filtration is dried and is obtained bismuth doping silver chlorate photochemical catalyst.
2. photochemical catalyst according to claim 1, it is characterized in that can degradating organic dye under the radiation of visible ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158899.4A CN104722319A (en) | 2015-04-07 | 2015-04-07 | Bismuth-doped silver chloride catalyst synthetic method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510158899.4A CN104722319A (en) | 2015-04-07 | 2015-04-07 | Bismuth-doped silver chloride catalyst synthetic method |
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| CN104722319A true CN104722319A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510158899.4A Pending CN104722319A (en) | 2015-04-07 | 2015-04-07 | Bismuth-doped silver chloride catalyst synthetic method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081161A (en) * | 2017-06-16 | 2017-08-22 | 天津工业大学 | In AgBr catalysis materials and its synthetic method |
| CN107837812A (en) * | 2016-09-18 | 2018-03-27 | 天津工业大学 | Sb doped Ag/AgCl catalysis materials and its synthetic method |
-
2015
- 2015-04-07 CN CN201510158899.4A patent/CN104722319A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107837812A (en) * | 2016-09-18 | 2018-03-27 | 天津工业大学 | Sb doped Ag/AgCl catalysis materials and its synthetic method |
| CN107081161A (en) * | 2017-06-16 | 2017-08-22 | 天津工业大学 | In AgBr catalysis materials and its synthetic method |
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Application publication date: 20150624 |