CdS/ZnO纳米复合结构的制备、表征及其光催化活性的改善  

Synthesis and Characterization of CdS/ZnO Nano-composites Structure and Enhanced Photocatalytic

作　　者：罗添元[1] 魏志鹏[1] 李金华[1] 方芳[1] 王晓华[1] 王相虎 崔勇[1] 谭学磊[1] 

机构地区：[1]长春理工大学理学院,吉林长春130022 [2]上海电机大学,上海220245

出　　处：《发光学报》2011年第7期680-685,共6页Chinese Journal of Luminescence

基　　金：国家自然科学基金(10804071;61006065;61076039);教育部新世纪优秀人才支持计划(NCET-07-022);吉林省科学发展计划(20080331;20091039;20090555;20101546);第"十一五"吉林省教育科技研究计划([2008]31号;296号;No.201120;25;26);长春理工大学质量创新工程(2009A0102;2009B0107)资助项目

摘　　要：利用简单的水热法在ZnO纳米棒表面合成CdS纳米粒子。用扫描电镜(SEM)和X射线衍射(XRD)对CdS/ZnO异质结构进行表征。实验结果表明,在生长CdS的过程中ZnO被逐渐地腐蚀。选择CdS/ZnO纳米复合材料作为光催化剂在紫外光和绿光照射的条件下降解甲基橙(MO)。CdS/ZnO纳米复合材料纳米棒作为光催化剂降解甲基橙的光催化活性有明显的提高。CdS nanoparticles were synthesized on ZnO nanorods by a sample hydrothermal method.The as-grown ZnO/CdS heterostructures were characterized by scanning electron microscopy（SEM）,X-ray diffraction（XRD）.It is shown that ZnO nanonods could be gradually corroded with the growth process of CdS.We selected ZnO-CdS nano-composites as a configuration to decompose methyl orange（MO） under ultraviolet and green light irradiation.Compared with ZnO nanorods,the absorption spectrum of CdS/ZnO nano-composites could be extended from ultraviolet to visible light,then compared with ZnO nanorods the photocatalytic activity of the nano-composites was obvious enhanced.

关 键 词：氧化锌 硫化镉 纳米复合结构 光催化 

分 类 号：O427.3[理学—声学] O644.1[理学—物理]