铁碳锰复合材料活化过一硫酸盐降解对氯苯酚  

Degradation of parachlorophenol by peroxymonosulfate activated by Fe/C/Mn composites

作　　者：齐石 占敬敬 QI Shi;ZHAN Jing-jing(School of Ocean Science and Technology,Dalian University of Technology,Panjin 124221,China)

机构地区：[1]大连理工大学海洋科学与技术学院,辽宁盘锦124221

出　　处：《应用化工》2022年第12期3535-3538,3544,共5页Applied Chemical Industry

基　　金：国家自然科学基金面上项目(21876022)。

摘　　要：采用铁碳锰复合材料(MnO_(2)-Fe_(2)O_(3)/C)活化过一硫酸盐(PMS)降解对氯苯酚,探究了材料投加量、PMS投加量及初始pH对对氯苯酚降解效果的影响。结果表明,最优的对氯苯酚降解条件为:材料投加量0.25 g/L,PMS 0.4 g/L,最优条件下反应体系在150 min内可以将25 mg/L的对氯苯酚完全去除,并且在pH=5~9的范围内均具有良好的降解效果。与传统二氧化锰相比,铁碳锰复合材料具有更好的吸附性,更好的降解效果以及更好的循环使用性能,是一种环境友好、具有理想应用前景的催化剂。A kind of Fe/C/Mn composites(MnO_(2)-Fe_(2)O_(3)/C)was prepared and evaluated,which can activate peroxymonosulfate(PMS)to degrade parachlorophenol.The effects of material dosage,PMS dosage and initial pH value on the degradation of chlorophenol were investigated.The results showed that the optimal degradation conditions of p-chlorophenol were 0.25 g/L material dosage and 0.4 g/L PMS dosage.Under the optimal conditions,25 mg/L p-chlorophenol could be completely removed in 150 min.Moreover,it had a good degradation effect when the pH value ranged from 5 to 9.Compared with traditional manganese dioxide,MnO_(2)-Fe_(2)O_(3)/C has better adsorbability,better degradation effect and better recycling performance,which is a kind of environmentally friendly catalyst with ideal application prospects.

关 键 词：铁碳锰复合材料 高级氧化技术 对氯苯酚 过一硫酸盐 

分 类 号：TQ209[化学工程—有机化工] X703.1[环境科学与工程—环境工程]