直接沉淀法制备Ag_(3)PO_(4)/α-Fe_(2)O_(3)光催化剂及降解亚甲基蓝  

Preparation of Ag_(3)PO_(4)/α-Fe_(2)O_(3) photocatalyst by direct precipitation method and degradation of methylene blue

作　　者：高雅 韩成良[2] 张凌云[2] 邓崇海[2] 董灿灿 GAO Ya;HAN Cheng-liang;ZHANG Ling-yun;DENG Chong-hai;DONG Can-can(Center of Analysis and Testing,Hefei University,Hefei 230601,China;School of Energy Materials and Chemical Engineering,Hefei University,Hefei 230601,China)

机构地区：[1]合肥学院分析测试中心,合肥230601 [2]合肥学院能源材料与化工学院,合肥230601

出　　处：《哈尔滨商业大学学报（自然科学版）》2021年第3期290-294,共5页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：广西省青年基金(2019JJB160049)

摘　　要：采用直接沉淀法制备出了不同物质的量比例的Ag_(3)PO_(4)/α-Fe_(2)O_(3)复合粉体.以亚甲基蓝模拟有机污染物考察了催化剂的光催化活性,结果表明,Ag_(3)PO_(4)/α-Fe_(2)O_(3)复合物的光催化活性与纯的α-Fe_(2)O_(3)和Ag 3PO 4相比大幅提高,并且当Ag_(3)PO_(4)摩尔分数为50%时,光催化效果最佳,光催化降解40 min时,降解率达97%,具有较好的降解性能.经过3次重复使用后,降解率降为51%.The Ag_(3)PO_(4)/α-Fe_(2)O_(3)composite powders with different molar ratios were prepared by direct precipitation method.The photocatalytic activity of the catalyst was investigated by using methylene blue as a model organic pollutant.The results showed that the photocatalytic activity of Ag_(3)PO_(4)/α-Fe_(2)O_(3)composite was much higher than that of pure-Fe_(2)O_(3)and Ag_(3)PO_(4),and the photocatalytic activity was best when the molar content of Ag_(3)PO_(4)was 50%,after 40 min of photocatalytic degradation,the degradation rate reached 97%,and it has better degradation performance.After three times of reuse,the degradation rate was reduced to 51%.

关 键 词：直接沉淀法 Ag_(3)PO_(4/)α-Fe_(2)O_(3)复合光催化剂 摩尔分数 亚甲基蓝 降解性能 重复使用 

分 类 号：TQ034[化学工程]