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可见光光催化剂AgNbO3:柠檬酸络合法制备及其性能
引用本文:毕进红,陈炳钦,车建刚,刘明华. 可见光光催化剂AgNbO3:柠檬酸络合法制备及其性能[J]. 无机化学学报, 2011, 27(10): 1952-1958
作者姓名:毕进红  陈炳钦  车建刚  刘明华
作者单位:福州大学环境与资源学院环境科学与工程系,福州,350108
基金项目:国家自然科学基金(No.21003022)资助项目
摘    要:以草酸铌铵和硝酸银为反应物,采用柠檬酸络合法成功的制备了钙钛矿型化合物AgNbO3可见光光催化剂,并运用X射线衍射、紫外-可见漫反射、扫描电镜、透射电镜和X射线光电子能谱等手段对催化剂进行了表征。同时以可见光为照射光源,以有机染料亚甲基蓝为模拟探针,考察其光催化性质。结果表明800℃所制备的样品具有最佳的光催化性能,其主要降解途径是以脱甲基的形式进行的,与固相法合成的样品相比,柠檬酸络合法所制备的样品具有较好的光催化性能。

关 键 词:柠檬酸络合法  AgNbO3  可见光  光催化  亚甲基蓝

Visible-Light-Driven Photocatalyst AgNbO3: Citrate Complex Process Preparation and Photocatalytic Property
BI Jin-Hong,CHEN Bing-Qin,CHE Jian-Gang and LIU Ming-Hua. Visible-Light-Driven Photocatalyst AgNbO3: Citrate Complex Process Preparation and Photocatalytic Property[J]. Chinese Journal of Inorganic Chemistry, 2011, 27(10): 1952-1958
Authors:BI Jin-Hong  CHEN Bing-Qin  CHE Jian-Gang  LIU Ming-Hua
Affiliation:Department of Environmental Science and Engineering, Fuzhou University, Fuzhou, 350108, China,Department of Environmental Science and Engineering, Fuzhou University, Fuzhou, 350108, China,Department of Environmental Science and Engineering, Fuzhou University, Fuzhou, 350108, China and Department of Environmental Science and Engineering, Fuzhou University, Fuzhou, 350108, China
Abstract:AgNbO3 particles with a perovskite-type structure were successfully synthesized via a citrate complex method from NH4H2[NbO(C2O4)3·3H2O] and AgNO3.The obtained samples were characterized by XRD,DRS,SEM,TEM and XPS.The photocatalytic activity was tested by the decomposition of organic dye methylene blue under visible light irradiation.The results showed that the sample prepared at 800 ℃ exhibited the best photocatalytic activity.And the decomposition of methylene blue is via a demethylation process.Compared to the sample prepared by the solid-state reaction,the sample prepared by citrate complex method displayed a higher photocatalytic activity.
Keywords:citrate complex method   AgNbO3   visible light   photocatalysis   methylene blue
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