La掺杂Bi2WO6光催化剂的水热制备工艺
Hydrothermal Preparation of La-Doped Bi2WO6 Photocatalyst
DOI: 10.12677/MS.2017.73035, PDF, HTML, XML, 下载: 1,430  浏览: 1,702  科研立项经费支持
作者: 沈俊玲, 姜洪泉：哈尔滨师范大学功能材料设计合成与绿色催化黑龙江省高校重点实验室，黑龙江 哈尔滨
关键词: Bi2WO6；La掺杂；4-氯酚；光催化；Bi2WO6； La-Doping； 4-Chlorophenol； Photocatalysis
摘要: 优化了La掺杂Bi2WO6光催化剂的水热制备工艺。考察了掺杂量、反应液初始pH值、水热时间、焙烧温度及焙烧时间等条件因素对La掺杂Bi2WO6在模拟太阳光下光催化降解4-氯酚(4-CP)性能的影响。结果表明：La掺杂量为1.5 wt%，反应液初始pH值为7，160℃水热12 h，经500℃焙烧2 h，制备的La掺杂Bi2WO6的光催化性能最佳，在模拟太阳光照射下对4-CP光催化去除率达51%，明显高于Bi2WO6的光催化活性(38.4%)。
Abstract: The hydrothermal synthesis process of La-doped Bi2WO6 photocatalyst was optimized. The effects of various factors including La-doping amount, initial pH of reactant solution, hydrothermal time, calcination temperature, and calcination time on the photocatalytic activity of La-doped Bi2WO6 were investigated through the photocatalytic degradation of 4-chlorophenol (4-CP) under simulated sunlight irradiation. The results show optimal preparation conditions as follows: La-doping amount is 1.5 wt%, and the initial pH value of reactant solution is 7, and hydrothermal time at 160˚C is 12 h, and calcination temperature is 500˚C, and calcination time is 2 h. The photoactivity of as-prepared La-doped Bi2WO6 was 51%, which is much higher than that of undoped Bi2WO6 prepared under the same conditions (38.4%).
文章引用：沈俊玲, 姜洪泉. La掺杂Bi2WO6光催化剂的水热制备工艺[J]. 材料科学, 2017, 7(3): 254-259. https://doi.org/10.12677/MS.2017.73035

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