【摘要】 以草酸-氨水两步共沉淀法制备了ZnO以及Zn_1-xCu_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Cu²⁺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,Cu²⁺掺杂量影响了ZnO的光催化性能,其中,当x为0.006时,Zn_0.994Cu_0.006O表现出最佳的光催化活性,氙灯光照60min,降解率达到12.322%。Cu²⁺掺杂降低了ZnO的光催化性能。更多还原

【Abstract】 ZnO and Zn_1-xCu_xO（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_0.994Cu_0.006 O sample had the best photocatalytic degradation,degradation rate reached to 12.322%.Cu²⁺doping reduced the photocatalytic degradation of ZnO.更多还原