钡铁氧体耦合过氧化氢光催化降解1,2,4-酸  

Photocatalytic degradation of 1,2,4-acid by strontium ferrite coupling hydrogen peroxide

作　　者：罗丹丹 原金海[1] 周婧 奚锐 敖柳燕 宁俊杰 许静[1] LUO Dandan;YUAN Jinhai;ZHOU Jing;XI Rui;AO Liuyan;NING Junjie;XU Jing(College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology,Chongqing 401331, China)

机构地区：[1]重庆科技学院化学化工学院,重庆401331

出　　处：《功能材料》2020年第12期12155-12160,共6页Journal of Functional Materials

基　　金：重庆市教委资助项目(KJ1601334);重庆科技学院研究生科技创新资助项目(YKJCX1920502,YKJCX1920513);重庆市科技创新资助项目(S201911551023)。

摘　　要：采用溶胶-凝胶自蔓延燃烧法制备钡铁氧体,用SEM、XRD、FT-IR、UV-vis等方法对钡铁氧体的形貌结构、禁带宽度和磁性进行表征分析。以钡铁氧体耦合过氧化氢为体系,研究其紫外光催化效率。结果表明制备的钡铁氧体为硬磁性材料,禁带宽度约为1.89 eV。当钡铁氧体用量为2 g/L,H2O2用量为1 mL,废水pH值为10.13,催化降解1,2,4-酸(10 mg/L)的降解率可达94.51%。In this paper,barium ferrites were prepared by sol-gel self-propagating combustion method.The morphological structure,energy gap and magnetism were characterized by SEM,XRD,FT-IR,UV-vis,magnetic measurement system,etc.The efficiency of UV photocatalytic degradation of 1,2,4-acids was investigated by using barium ferrite-coupled hydrogen peroxide as a system.The results showed that the prepared barium ferrite were hard magnetic materials with a energy gap of 1.89 eV.When the amount of barium ferrite was 2 g/L,the amount of H2O2 was 1 mL,and the wastewater pH was 10.13,the catalytic degradation rate of 1,2,4-acid(10 mg/L)was 94.51%.

关 键 词：钡铁氧体 溶胶-凝胶自蔓延燃烧法 光催化降解 1 2 4-酸 

分 类 号：X132[环境科学与工程—环境科学]