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OALib Journal期刊
ISSN: 2333-9721
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固溶体znxcd1-xs光催化降解甲基橙水溶液
DOI: 10.3969/j.issn.1671-7627.2014.06.005, PP. 23-30
Keywords: znxcd1-xs,甲基橙降解,光催化
Abstract:
采用共沉淀法制备固溶体znxcd1-xs光催化剂,采用x线衍射仪(xrd),扫描电子显微镜(sem)和紫外-可见漫反射光谱仪(uv-visdrs)对znxcd1-xs光催化剂的结构和性能进行表征。以甲基橙水溶液为模型反应物,通过可见光催化降解甲基橙水溶液,对固溶体znxcd1-xs光催化剂的可见光催化活性进行评价。探讨zn的摩尔分率(x)对znxcd1-xs光催化剂的能带结构、导带电位、价带电位及光催化活性的影响,考察降解温度、催化剂用量、甲基橙水溶液的初始浓度和ph对可见光催化降解甲基橙性能的影响,并对znxcd1-xs光催化剂的光催化活性的提高进行了机制分析。结果表明:与cds相比,znxcd1-xs不仅光催化活性高,而且光稳定性好,可多次循环使用。
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