K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2复合材料的制备、表征及光催化性能  

Preparation, characterization and photocatalytic activity of K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2 composites

作　　者：王鹏[1] 单秋杰[1] 赵春艳[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《印染助剂》2018年第2期30-34,共5页Textile Auxiliaries

基　　金：黑龙江省教育厅科学技术研究项目(12531769);齐齐哈尔大学青年教师科研启动支持计划项目(2012K-Z11)

摘　　要：采用静电自组装法将制备的K_8[Cu(H_2O)CdW_(11)O_(39)]和PANI/MnO_2复合,得到K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2,并用UV-Vis、IR、N2吸附-脱附、XRD和SEM-EDS对其进行表征,结果表明:K_8[Cu(H_2O)CdW_(11)O_(39)]和PANI/MnO_2成功复合,并且仍然保持K_8[Cu(H_2O)CdW_(11)O_(39)]原有的Keggin结构。K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2光催化降解亚甲基蓝实验结果表明,最佳降解条件为:溶液初始pH=2、染料初始质量浓度5 mg/L、催化剂用量8 mg,降解率可达91.04%;催化剂对太阳光的光能利用率高,具有较强的光催化性能。The composite K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2 was prepared bye electrostatic selfassembly with K_8[Cu(H_2O)CdW_(11)O_(39)] and PANI/MnO_2, and it was characterized by UV-Vis, IR, N2 adsorption-desorption,XRD, SEM-EDS. The results showed that K_8[Cu(H_2O)CdW_(11)O_(39)] and PANI/MnO_2 were successfully compounded, and K_8[Cu(H_2O)CdW_(11)O_(39)] still maintain the original Keggin structure. The photocatalytic degradation of methylene blue by K_8[Cu(H_2O)CdW_(11)O_(39)]/PANI/MnO_2 showed that the optimum conditions were as follows: the initial pH=2, the initial concentration of dye 5 mg/L, the amount of catalyst 8 mg. Under the optimum conditions, the degradation rate was 91.04%. The catalyst had high light energy utilization rate and strong photocatalytic activity.

关 键 词：杂多酸盐 聚苯胺 二氧化锰 光催化 亚甲基蓝 

分 类 号：TQ426.68[化学工程]