溶剂热还原法制备纳米Cu_2O及其光催化性能  

Preparation of Nanocrystalline Cu_2O in Ethylene Glycol System and its Photocatalytic Activity

作　　者：李龙凤[1] 张茂林[1] 孟祥东[1] 

机构地区：[1]淮北师范大学化学与材料科学学院,安徽淮北235000

出　　处：《材料科学与工程学报》2010年第5期693-696,共4页Journal of Materials Science and Engineering

基　　金：国家自然科学基金资助项目(20673042);安徽省高等学校自然科学基金资助项目(KJ2007B014)

摘　　要：以Cu(CH3COO)2.2H2O为原料,乙二醇为溶剂和还原剂,通过溶剂热还原法制备纳米Cu2O。通过X射线衍射分析(XRD)对产物进行表征。结果表明,反应温度、反应时间和Cu(CH3COO)2初始浓度对产物Cu2O的结晶程度和晶粒大小有着重要的影响。以甲基橙溶液为模拟废水,研究纳米晶Cu2O在可见光照射下的光催化活性。实验表明,制备的Cu2O样品在可见光下具有高的光催化活性,可见光催化活性优于商业P25 TiO2光催化剂。Cu_2O nanocrystals had been successfully prepared using Cu（CH_3COO）_2·2H_2O as the starting material and ethylene glycol（EG） as the solvent and the reducing agent.The samples were characterized by X-ray diffractometry（XRD）.The results shown that the crystallinity and the crystal size of products were greatly affected by the preparation conditions such as reaction temperature,reaction time and initial concentration of Cu（CH_3COO）_2.The methyl orange（MO） was used as a target pollutant to test the photocatalytic activity of samples.Results show that the Cu_2O catalyst exhibited a higher activity than commercial P25 TiO_2 powder under visible light irradiation.

关 键 词：氧化亚铜 制备 乙二醇 光催化性能 

分 类 号：O643.36[理学—物理化学] O644.15[理学—化学]