| 银对BiVO_4光催化性能的影响 |
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| 引用本文： | 葛明,陈蕾,杨光.银对BiVO_4光催化性能的影响[J].广州化工,2014(12):47-49. |
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| 作者姓名： | 葛明 陈蕾 杨光 |
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| 作者单位： | 河北联合大学应用化学系,河北唐山063009 |
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| 基金项目： | 河北省自然科学基金（B2014209182）；唐山市科技局项目（12110216b）。 |
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| 摘 要： | 采用溶剂热法制备单斜晶型BiVO4,研究银对BiVO4光催化活性的影响。BiVO4光催化降解罗丹明B的效率低,而Ag+的加入大大增强BiVO4光催化降解罗丹明B活性,归结于Ag+的存在抑制BiVO4光生电子-空穴的复合。XRD、TEM和EDS证实回收的BiVO4表面沉积金属银,形成Ag/BiVO4复合材料。Ag/BiVO4的光催化活性强于BiVO4。引入的银起到双重促进BiVO4光催化降解罗丹明B的作用。
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| 关 键 词： | 银 钒酸铋 光催化 双重作用 |
The Effect of Silver for the Photocatalytic Activity of BiVO4 |
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| GE Ming,CHEN Lei,YANG Guang.The Effect of Silver for the Photocatalytic Activity of BiVO4[J].GuangZhou Chemical Industry and Technology,2014(12):47-49. |
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| Authors: | GE Ming CHEN Lei YANG Guang |
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| Affiliation: | (Department of Applied Chemistry, Heibei United University, Heibei Tangshan 063009, China) |
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| Abstract: | Monoclinic BiVO 4 was synthesized by a solvothermal method.The effect of silver for the photocatalytic activity of BiVO4 was investigated.The photodegradation rate of RhB by BiVO 4 was very low, however, the photocatalytic activity of BiVO4 was greatly enhanced for RhB degradation when the silver ions were added.The result was due to the recombination of electrons and holes in BiVO 4 photocatalyst was depressed when silver ions were introduced.XRD, TEM and EDS results indicated that metal Ag was deposited on the recycled BiVO 4 surfaces, and Ag/BiVO4 composite material was formed.The photocatalytic performance of Ag/BiVO4 was higher than that of pure BiVO 4.The added silver played a dual role in promoting the photodegradation of RhB in BiVO 4 system. |
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| Keywords: | silver bismuth vanadate photocatalysis dual role |
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