摘要
发现Zn1-xCuxS和Zn1-xNixS固溶体是可见光照射下工作的新型光催化剂。具有带隙 2 .6ev的Zn0·957Cu0·0 4 3 S在可见光照射下 ,自K2 SO3 和Na2 S水溶液中显示出释放H2 的最高活性。将Zn1-xNixS光催化剂在N2 流下 ,于 770K热处理也显示出高活性。Zn1-xCuxS和Zn1-xNixS光催化剂不需要象Pt这类助催化剂。
Zn 1-x Cu xS and Zn 1-x Ni xS solid solutions were found to be new photocatalysts working under visible light irradiation. Zn 0.957 Cu 0.043 S with a 2.6ev band gap showed the highest activity for H 2 evolution form an agueous K 2SO 3 and Na 2S sotution under visible light irradiation. Zn 1-x Ni xS photocatalysts also showed the high activity when they were heat-treated at 770K under N 2 flow. Both Zn 1-x Cu xS and Zn 1-x Ni xS photocatalysts did not need co-catalysts such as Pt. The visible light response is probably due to the transition between the conduction band of ZnS and levels formed by Cu and Ni ions.
出处
《云南师范大学学报（自然科学版）》
2001年第4期40-42,共3页
Journal of Yunnan Normal University:Natural Sciences Edition
