负载磷钼杂多酸/La_(0.7)Ca_(0.3)Fe_(0.25)Co_(0.75)O_3/聚吡咯的制备及光催化性能研究  

Preparation and Photocatalytic Activity of PMo_(12) Modified La_(0.7)Ca_(0.3)Fe_(0.25)Co_(0.75)O_3/PPy Composite Nanoparticles

作　　者：储艳文[1] 林生岭[1] 郭寅丹[1] 龙丹[1] 万勇[1] 

机构地区：[1]江苏科技大学材料科学与工程学院,镇江212003

出　　处：《材料导报》2011年第4期57-60,共4页Materials Reports

基　　金：国家自然科学基金(20704020);江苏科技大学博士启动基金(2006CL0035)

摘　　要：采用甘氨酸-硝酸盐燃烧法成功制备了La0.7Ca0.3Fe0.25Co0.75O3钙钛矿型复合氧化物,以(NH4)2S2O8为氧化剂,运用化学氧化法合成La0.7Ca0.3Fe0.25Co0.75O3/聚吡咯薄膜,然后通过静电自组装方法制备了一种新的表面负载修饰型复合光催化剂La0.7Ca0.3Fe0.25Co0.75O3/PPy/PMO12。采用XRD、SEM、FT-IR对催化剂的物化结构进行了表征。光催化性能测试是以亚甲基蓝染料的水溶液为降解目标,结果表明,PMo12的负载修饰改进了La0.7Ca0.3-Fe0.25Co0.75O3/PPy光催化剂的催化活性。The composite oxide of La0.7Ca0.3Fe0.25Co0.75O3 nanocrystal has been synthesized by glycine-nitrate combustion method. A novel nanocomposite photocatalyst PMO12/PPy/La0.7Ca0.3Fe0.25Co0.75O3 has been successfully prepared first using a chemical oxidation method with （NH4）2 S2 O8 as an oxidant to form PPy/La0.7Ca0.3Fe0.25Co0.75O3 nanoparticles and then by an electrostatic assembly of PMO12^ 3- . The resulting materials are characterized by XRD, SEM,FT-IR techniques. Photocatalytic performance test is taking low concentration of methylene blue dye solution as the degradation of target. The results show that the load modification of PMO12 improves the photocatalytic activity of La0.7Ca0.3Fe0.25Co0.75O3/PPy.

关 键 词：La0.7Ca0.3Fe0.25Co0.75O3 聚吡咯 磷钼杂多酸 光催化剂 降解 亚甲基蓝 

分 类 号：O643[理学—物理化学]