黄绵峰,郑治祥,徐光青,吴玉程

• 1:合肥工业大学材料科学与工程学院

摘要(Abstract)：

以钛酸四丁酯、三乙醇胺和硫脲为前驱物,采用溶胶-凝胶法合成了氮硫共掺杂纳米TiO2光催化剂,以XRD、DRS、PL、FTIR、SEM、TEM、XPS等手段对所制备的粉体进行了性能表征;并以日光色镝灯为光源,研究了催化剂对光降解甲基橙的活性。结果表明,除了700℃煅烧样品是锐钛矿和金红石晶型共存外,其它掺杂催化剂主要是锐钛矿晶型。不同温度煅烧的催化剂在波长低于550nm的可见光区域内都有高的吸光度。可见光光催化结果表明,500℃煅烧制得的掺杂氧化钛光催化剂表现出最佳的光催化活性,180min内对甲基橙溶液的降解率达到76.7%。

关键词(KeyWords)： 氮、硫共掺杂;纳米TiO2;可见光;光催化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(20571022);; 博士点基金(20060359011)

作者(Author): 黄绵峰,郑治祥,徐光青,吴玉程

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