水资源与水工程学报2017，Vol.28Issue(3)：10-14,5.DOI:10.11705/j.issn.1672-643X.2017.03.03
核壳结构纳米铁活化过硫酸盐降解HBCDs的研究
Activation of persulfate by core-shell Fe@Fe2O3 nanostructures for degradation of HBCDs
摘要
Abstract
This paper was to set up a novel effective technology to remove a persistent brominated flame retardant, which is called hexabromocyclododecanes (HBCDs).The core-shell Fe@Fe2O3 nanostructures were synthesized and adopted to activate persulfate to degrade HBCDs.Furthermore, the influences of pH value, the ratio of Fe@Fe2O3 and persulfate, and initial concentration of HBCDs on HBCDs reduction were studied.The results show that persulfate activated by core-shell Fe@Fe2O3 produced a large number of strong oxidation radicals.The degradation rate of HBCDs under acidic condition was higher than those under alkaline or neutral conditions.The Fe@Fe2O3 activator exhibited greater persulfate activation efficiency compared with the ferrous ions.The highest HBCDs removal rate (70%) was achieved at the ratio of Fe@Fe2O3: persulfate of 3:1.Therefore, core-shell Fe@Fe2O3 nanostructures are good activators of persulfate to degrade HBCDs.关键词
核壳结构纳米零价铁线/六溴环十二烷(HBCDs)/过硫酸盐/降解Key words
core-shell Fe@Fe2O3 nanostructures/hexabromocyclododecane(HBCDs)/persulfate/degradation分类
资源环境引用本文复制引用
张慧鸣,范均朝,陈雯铃,孙红文..核壳结构纳米铁活化过硫酸盐降解HBCDs的研究[J].水资源与水工程学报,2017,28(3):10-14,5.基金项目
国家973计划课题(2014CB441104) （2014CB441104）
国家级本科生科技创新项目(20151005501) （20151005501）
