铁酸钴纤维负载银/氯化银纳米粒子的合成及其对甲基橙的光催化降解（英文）  

Synthesis of Ag/AgCl Nanoparticles Immobilized on CoFe_2O_4 Fibers and Their Photocatalytic Degradation for Methyl Orange

作　　者：李紫宇 贾志刚[1] 李雯雯 刘建红[1] 江姗 李圣标 诸荣孙[1] 

机构地区：[1]安徽工业大学,安徽马鞍山243002

出　　处：《稀有金属材料与工程》2017年第12期3669-3674,共6页Rare Metal Materials and Engineering

基　　金：National Natural Science Foundation of China(20907001);Training Programs of Innovation for Undergraduates of Anhui University of Technology(2015019)

摘　　要：通过温和的湿化学合成法将Ag/AgCl纳米粒子固载于CoFe_2O_4纤维表面,固载银/氯化银纳米粒子的量可控。利用X射线衍射,扫描电子显微镜和电子显微镜等技术对制备的Ag/AgCl@CoFe_2O_4组成、形貌等进行了表征。以甲基橙的降解脱色为模型反应,考察了Ag/AgCl纳米粒子的不同负载量对催化性能的影响。实验结果表明:AAC-4型固载纤维光催化剂展示出比其它类型固载光催化剂以及单纯Ag/AgCl纳米粒子更高的光催化性能,可使甲基橙溶液60 min的脱色率达98.2%,且Ag/AgCl纳米粒子在CoFe_2O_4纤维表面的固载促进了光催化剂催化效率和催化稳定性的提升。Ag/AgCl nanoparticles were immobilized onto the as-prepared CoFe2O4 fibers by a facile synthesis method.The amount of Ag/AgCl nanoparticles immobilized onto CoFe2O4 fibers could be tuned.The as-synthesized Ag/AgCl@CoFe2O4 composite fibers were characterized by XRD,FESEM and EM,and employed to degradate MO（methyl orange） dye in wastewater under visible light.The results show that AAC-4 fiber exhibits higher efficiency for the degradation of the MO dye under visible light illumination than other Ag/AgCl@CoFe2O4 composite fibers or pure Ag/AgCl sample,and the decolorizing efficiency of MO can research 98.2%.The immobilization of Ag/AgCl nanoparticles onto CoFe2O4 fiber promotes the enhancement of photocatalytic efficiency and stability.

关 键 词：固载 光催化活性 甲基橙 降解 

分 类 号：O643.36[理学—物理化学] TB383.1[理学—化学]