α-Fe_(2)O_(3)/γ-Fe_(2)O_(3)/Cu_(2)O的制备及其对橙黄G的催化降解性能  

Preparation of α-Fe_(2)O_(3)/γ-Fe_(2)O_(3)/Cu_(2)O and catalytic degradation of Orange G

作　　者：侯清瑶 彭雪儿 周琛阳 高丽丽[1] HOU Qingyao;PENG Xueer;ZHOU Chenyang;GAO Lili(College of Environmental Science and Engineering,Taiyuan University of Technology,Jinzhong 030600,China)

机构地区：[1]太原理工大学环境科学与工程学院,山西晋中030600

出　　处：《化工环保》2023年第1期101-106,共6页Environmental Protection of Chemical Industry

基　　金：山西省重点研发计划项目(201803D31050)。

摘　　要：通过对常规CuFeO2进行修饰,合成了复合催化剂α-Fe_(2)O_(3)/γ-Fe_(2)O_(3)/Cu_(2)O(CuFe-13),采用XRD、FTIR、SEM、VSM等技术进行了表征,考察了CuFe-13-过一硫酸盐(PMS)体系对橙黄G(OG)的催化降解性能,分析了催化剂加入量、PMS浓度和反应pH对OG降解性能的影响。实验结果表明:在CuFe-13加入量为0.20 g/L、PMS浓度为1.0 mmol/L、pH为7.0的条件下,CuFe-13-PMS体系的催化降解性能最佳,反应30 min后OG的去除率为100%,反应120 min后TOC的去除率为73.4%;在CuFe-13-PMS体系中,起主要作用的活性物种为1O_(2)、SO_(4)^(-)·和·OH。The composite catalyst α-Fe_(2)O_(3)/γ-Fe_(2)O_(3)/Cu_(2)O(CuFe-13)was synthesized by modifying conventional CuFeO_(2) and characterized by XRD,FT-IR,SEM and VSM.The catalytic degradation capability of CuFe-13-peroxymonosulfate(PMS)system to Orange G(OG)was investigated,and the effects of catalyst amount,PMS concentration and reaction pH on OG degradation were studied.The experimental results show that under the conditions of catalyst amount 0.20 g/L,PMS concentration 1.0 mmol/L and reaction pH 7.0,the catalytic degradation capability of CuFe-13-PMS system is the best,and the removal rate of OG is 100%after 30 min of reaction,the removal rate of TOC is 73.4%after 120 min of reaction.In the CuFe-13/PMS system,the main active species are 1O_(2,)SO_(4)^(-)·and·OH.

关 键 词：α-Fe_(2)O_(3)/γ-Fe_(2)O_(3)/Cu_(2)O 过一硫酸盐(PMS) 橙黄G 高级氧化 

分 类 号：X703[环境科学与工程—环境工程]