自组装Fe_(3)O_(4)的制备及其电芬顿催化性能  

Preparation of self-assembled Fe_(3)O_(4)and its electro-Fenton catalytic performance

作　　者：魏新霖 毛健[1] WEI Xin-lin;MAO Jian(College of Materials Science and Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学材料科学与工程学院,四川成都610065

出　　处：《化学研究与应用》2023年第10期2424-2430,共7页Chemical Research and Application

摘　　要：近几十年来,人类环境问题日益严峻。为此,研究者们开发出了多种简单、高效、绿色的污染处理技术,其中电芬顿技术受到了诸多的关注。在本文中,使用溶剂热法得到了具有自组装结构的Fe_(3)O_(4)纳米颗粒,加入聚乙二醇600能够有效抑制Fe_(3)O_(4)纳米颗粒的团聚行为。经过500℃煅烧5 h后,自组装结构的Fe_(3)O_(4)纳米颗粒转变为纳米球形颗粒。使用这些Fe_(3)O_(4)作为电芬顿降解亚甲基蓝的催化剂,亚甲基蓝的降解率都较高,在低电流强度(5 mA)、通电3 h后最高可以达到94.79%。Recent decades,environmental conditions have become increasingly serious.Therefore,researchers have developed a vari-ety of simple,efficient and green pollution treatment technologies.Especially,the electro-Fenton technology has received much at-tention.In this paper,Fe_(3)O_(4)nanoparticles with self-assembled structures were obtained using solvothermal method.The addition of polyethylene glycol 600 can inhibit the aggregation of Fe_(3)O_(4)nanoparticles.After calcination at 500℃for 5 h,self-assembled Fe_(3)O_(4)nanoparticles transform into spherical nanoparticles.The degradation rates of methylene blue are all relatively high while these Fe_(3)O_(4)nanoparticles are used as electro-Fenton catalysts for degrading methylene blue,reaching a maximum of 94.79%with a low current intensity(5 mA)for 3 h.

关 键 词：Fe_(3)O_(4) 自组装 电芬顿 亚甲基蓝 

分 类 号：O614.8[理学—无机化学]