LaFeO_(3)钙钛矿催化湿式氧化苯酚的研究  

Study on wet air oxidation of phenol catalyzed by LaFeO_(3) perovskite

作　　者：刘鑫尧 张宣娇 杨淑倩 韩蛟 李印福[3] 张磊[1,3] 高志贤[1] LIU Xin-yao;ZHANG Xuan-jiao;YANG Shu-qian;HAN Jiao;LI Yin-fu;ZHANG Lei;GAO Zhi-xian(School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China;Liaoning Zhongzihuayu Environmental Technology CO.,LTD,Shenyang 110167,China;Graduate School,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油化工学院,辽宁抚顺113001 [2]辽宁中咨华宇环保技术有限公司,辽宁沈阳110167 [3]辽宁石油化工大学研究生院,辽宁抚顺113001

出　　处：《燃料化学学报》2022年第11期1491-1497,共7页Journal of Fuel Chemistry and Technology

基　　金：国家自然科学基金(21673270);辽宁省教育厅科学研究经费项目(L2019012)资助。

摘　　要：本研究采用固相球磨法制备了四种不同球磨时间的LaFeO_(3)钙钛矿催化材料,并将其用于催化湿式氧化苯酚反应,探讨了球磨时间对LaFeO_(3)钙钛矿催化剂催化湿式氧化苯酚水溶液性能的影响。采用XRD、H_(2)-TPR、TG-DTA、FTIR、N_(2)物理吸附、XPS等手段对LaFeO_(3)钙钛矿催化材料进行了表征。结果表明,在反应温度为200℃、空气压力5 MPa、苯酚初始浓度4000 mg/L时,经过240 min的催化氧化反应后LaFeO_(3)-6催化材料最终的COD去除率为94.5%。In this paper,four kinds of LaFeO_(3) perovskite catalytic materials with different ball milling time were prepared by solid phase milling method and used to catalyze the wet air oxidation of phenol.The effect of milling time on the performance of LaFeO_(3) perovskite catalyst for wet air oxidation of phenol aqueous solution was investigated.LaFeO_(3) perovskite catalytic materials were characterized by XRD,H_(2)-TPR,TG-DTA,FT-IR,N_(2) physical adsorption and XPS.The results show that when the reaction temperature is 200℃,the air pressure is 5 MPa and the initial concentration of phenol is 4000 mg/L,the final COD removal rate of LaFeO_(3)-6 catalytic material is 94.5%after catalytic oxidation of 240 min.

关 键 词：苯酚 LaFeO_(3)钙钛矿 催化湿式氧化 COD去除率 

分 类 号：O643[理学—物理化学]