不同光照条件下CO_3O_4纳米粉体的光催化性能  

Photocatalytic Properties of Co_3O_4 Nano-Powder Under Different Illumination Conditions

作　　者：王天喜[1] 刘双枝[2] 

机构地区：[1]河南科技学院化学化工学院,河南省新乡市华兰大道东段453003 [2]开封大学化工学院,河南省开封市475004

出　　处：《光谱实验室》2012年第4期2200-2203,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：河南科技学院重点科研项目(210010605002)

摘　　要：用沉淀-热解法制备Co_3O_4纳米粉体,并对其进行XRD和扫描电镜分析。分别使用300W高压汞灯及模拟可见光的氙灯为光源,使用该催化剂对B-GFF黑等3种不同模拟染料废水进行光催化降解,取得了较好的效果。实验结果表明,Co_3O_4催化剂在高压汞灯照射下有较好的光催化效果;在模拟可见光的氙灯条件下,也具有明显的光催化效果,具有一定的对可见光的利用能力,有很好的实际开发应用价值。Co3O4 nano-powder was prepared by precipitation-pyrogenation method,and was analyzed by XRD and TEM.300W high-pressure mercury lamp and simulate-visible-light xenon lamp were used as the light source.The photochemical decolorizations of the three different simulate dyestuff wasterwater were investigated,then the relatively good results were obtained,with Co3O4 nano-powder as the photocatalyst,and the results showed that Co304 had the remarkable photochemical degradation effect in the irradiation of the high-pressure mercury lamp,that also had the evident photochemical degradation effect in the irradiation of the simulate-visible-light xenon lamp.That means Co3O4 photocatalyst can be used in the practical development and utilization value because of its certain utilization activity on visible light.

关 键 词：四氧化三钴 光催化降解 活性染料 

分 类 号：O657.32[理学—分析化学] O343.13[理学—化学]