CaTiO_3∶Pr^(3+)光催化降解亚甲基蓝的实验研究  

Study on photocatalytic degradation of methylene blue by CaTiO_3∶Pr^(3+)

作　　者：王俊兰[1] 杨紫淇 娄三钢 张佩聪[1] 邱克辉[1] WANG Junlan;YANG Ziqi;LOU Sangang;ZHANG Peicong;QIU Kehui(Institute of Materials Science and Technology,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学材料科学技术研究所,成都610059

出　　处：《功能材料》2018年第9期9111-9114,共4页Journal of Functional Materials

基　　金：四川省科技重点研发资助项目(2017GZ0400;2015GZ0054)

摘　　要：采用燃烧法合成制备CaTiO_3∶Pr^(3+)功能矿物材料,运用扫描电镜(SEM),X射线粉末衍射仪(XRD)对其形貌和结构进行了表征,研究了CaTiO_3∶Pr^(3+)对亚甲基蓝溶液的降解性能,结果表明,紫外光催化下CaTiO_3对亚甲基蓝具有光催化降解功能,Pr^(3+)的掺杂显著提升了CaTiO_3催化效率。降解率随着亚甲基蓝溶液初始浓度的提高而降低,随着催化剂浓度的提高先增大后减小。Praseodymium-doped perovskite Functional mineral material was synthesized via the combustion method.The crystal structure and morphologies were characterized by X-ray diffraction(XRD),scannin g electron microscopy(SEM).The photocatalytic performance was studied by the degradation experiment of inferior methyl blue.The results indicate that CaTiO 3 has good photocatalytic degradation performance for the inferior methyl blue under UV-irradiation condition and the Pr 3+-doping significantly improved the photocatalytic efficiency.The degradation rate of MB decreased with the increasing initial concentration.Furthermore,The degradation rate of MB increased first and then decreased with the increasing concentration of catalyzer.

关 键 词：CaTiO3∶Pr^3+ 亚甲基蓝 光催化降解 

分 类 号：O643.36[理学—物理化学]