Zn_(1-x)Cu_xO材料的制备及其光催化降解亚甲基蓝  

Preparation of Zn_(1-x)Cu_xO material and their photocatalytic degradation for methylene blue

作　　者：高素云[1] 粟智[1] 潘会[1] 郭利杰[1] 胡帅[1] 

机构地区：[1]新疆师范大学化学化工学院,乌鲁木齐830054

出　　处：《化工新型材料》2017年第2期49-51,共3页New Chemical Materials

基　　金：新疆师范大学大学生创新训练项目(201510762041)

摘　　要：以草酸-氨水两步共沉淀法制备了ZnO以及Zn_(1-x)Cu_xO(0.00≤x≤0.01)光催化材料,采用X射线衍射对其物相进行了分析,并将其用于光催化降解亚甲基蓝,详细考察了焙烧温度以及Cu^(2+)掺杂量等制备条件对ZnO结构与光催化性能的影响。结果表明:焙烧温度对ZnO的光催化性能有较大的影响,随着焙烧温度的增加,ZnO的光催化活性呈现先增加后减小的趋势。当焙烧温度为600℃时,ZnO表现出最佳的光催化活性,氙灯光照60min,降解率达到99.31%。同样,Cu^(2+)掺杂量影响了ZnO的光催化性能,其中,当x为0.006时,Zn_(0.994)Cu_(0.006)O表现出最佳的光催化活性,氙灯光照60min,降解率达到12.322%。Cu^(2+)掺杂降低了ZnO的光催化性能。ZnO and Zn（1-x）CuxO（0.00≤x≤0.01）materials were prepared by the two-step facile co-precipitation method using oxalic acid and ammonia as the precipitants.The characterization of prepared catalysts was performed by means of XRD,and their photocatalytic degradation of methylene blue was investigated.In addition,the influence of calcination temperature and the amount of Cu2＋on the structure and photocatalytic degradation of ZnO were studied in details.The experimental results showed that the calcination temperature had the great influence on the photocatalytic degradation of ZnO.With the increasing of calcination temperature,the photocatalytic degradation of ZnO increased first and then decreased.When the calcination temperature was 600℃,the ZnO exhibited the best photocatalytic degradation,degradation rate reached to 99.31%.In addition,the amount of Cu2＋also had influence on the photocatalytic degradation of ZnO.When the x was 0.006,the Zn（0.994）Cu（0.006） O sample had the best photocatalytic degradation,degradation rate reached to 12.322%.Cu2＋doping reduced the photocatalytic degradation of ZnO.

关 键 词：Cu2+掺杂 ZNO 草酸-氨水共沉淀 光催化 

分 类 号：O643.36[理学—物理化学]