多面体氧化亚铜合成及其光催化性能研究  

Study on preparation and photo-catalytic performance of polyhedra Cu_2O

作　　者：孙开莲[1,2] 葛秀涛[1] 章守权[1] 陈玉萍[1] 姚建[2] 

机构地区：[1]滁州学院材料与化学化工学院,安徽滁州239000 [2]上海大学材料科学与工程学院,上海200072

出　　处：《阜阳师范学院学报（自然科学版）》2012年第4期21-24,共4页Journal of Fuyang Normal University(Natural Science)

基　　金：安徽省高校省级自然科学研究项目(KZ2011Z208);安徽省应用化学省级重点学科建设项目(200802187C)资助

摘　　要：采用水热法合成正八面体和凹二十四面体六角锥形两种形貌纯Cu2O微晶,通过对不同保温时间下产物的SEM表征形貌进行分析,提出特殊形貌凹二十四面体六角锥形Cu2O形成机理。在少量H2O2存在和可见光照射下,凹二十四面体六角锥形Cu2O降解罗丹明—B染料光催化活性优于正八面体,表明Cu2O微晶光催化活性与形貌密切相关。Two morphology of octahedron and concave tetrahexahedron Hexagonal pyramid pure Cu2O powder were prepared by hydrothermal method. The morphology and structure of product were examined by SEM and XRD technology. The possible formation mechanism of concave tetrahexahedron Hexagonal pyramid Cu： O is proposed in this paper by analyzing the morphology of product prepared at different reaction time. The concave tetrahexahedron Hexagonal pyramid Cu2O exhibits better photo-catalytic activity than octahedron Cu： O at the existence of litde H2O： and irradiated by 500W xenon lamp. That is to say the photocatalytic activity of Cu2O microcrystalline is closely related with its morphology.

关 键 词：八面体 六角锥形 二十四面体 CU2O 光催化降解 微观形貌 

分 类 号：O614.121[理学—无机化学]