| 摘要: |
| 采用简便并流水热沉淀法制备了光催化剂FePO4.利用紫外-可见漫反射等技术对其进行了一系列表征，结果表明，它的吸收边带约为450 nm，对可见光具有好的响应能力.利用420 nm以上的可见光，通过降解罗丹明B溶液，对FePO4的光催化活性进行了测试，结果显示，FePO4能使100 mL，4 mg/L的罗丹明B溶液于100 min内降解完全，且通过可见单色光的活性测试得知，FePO4能光催化降解罗丹明B主要是因为FePO4的催化作用. |
| 关键词: FePO4 水热沉淀法 光催化剂 罗丹明B |
| DOI： |
| 分类号:O643.3 |
| 基金项目:湖南省科技厅发展计划院士基金资助课题（2013FJ4044） |
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| FePO4 photocatalyst and its photocatalytic performance in degradation of rhodamine B dyes |
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Feng Zhaoxia, Li Datang, Peng Bin
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College of Chemistry & Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201,China
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| Abstract: |
| A novel FePO4 photocatalyst was prepared via a facile hydrothermal-precipitation method. The properties of the photocatalyst were characterized by UV- visible diffuse reflectance spectrum etc. The results show that its absorption band edge is about 450 nm. Besides, there is a good response to visible light. It only took 100 min to completely degrade 100 mL of rhodamine B dyes (0.1 mol/L) under visible light irradiation (λ 420 nm), and by the photocatalytic activity of FePO4 under irradiation of monochromatic visible-light learn that the photocatalytic efficiency is owing to the intrinsic photocatalytic performance of FePO4 in degradation of rhodamine B dyes under visible-light irradiation. |
| Key words: FePO4 hydrothermal-precipitation photocatalyst rhodamine B |
