改性纳米零价铁活化过硫酸盐降解污染物  

Modified Nano Zero Valent Iron Activated Persulfate to Degrade Pollutants

作　　者：安雪雯 侯雨君 仝镇豪 安伟佳 AN Xue-wen;HOU Yu-jun;TONG Zhen-hao;AN Wei-jia(College of Chemical Engineering,North China University of Science and Technology,Hebei Tangshan 063210,China)

机构地区：[1]华北理工大学化学工程学院,河北唐山063210

出　　处：《广州化工》2024年第17期100-103,共4页GuangZhou Chemical Industry

摘　　要：在当今环境下,基于水体中污染物带来的环境问题,寻找新的催化剂降解污染物成为研究热点。其中以硫酸根自由基(SO_(4)^(-)·)为基础的的高级氧化技术(AOPs)受到越来越多的关注。相比羟基自由基(OH·),SO_(4)^(-)·具有还原电位更高、半衰期更长、pH范围更宽等优势。同时纳米零价铁(nZVI)因其粒径小,比表面积大而备受关注。由于nZVI易聚集、易氧化,需要对其进行改性,本文介绍了负载nZVI、Fe的双金属、硫化物改性nZVI活化过硫酸盐(PS)用于降解的研究。In today's environment,the search for new catalysts to degrade pollutants has become a hot research topic based on the environmental problems caused by pollutants in water bodies.Among them,advanced oxidation technologies(AOPs)based on sulfate radicals(SO_(4)^(-)·)have received increasing attention.Compared with hydroxyl radical(OH·),SO_(4)^(-)·has the advantages of higher reduction potential,longer half-life and wider pH range.Meanwhile,nano-zero-valent iron(nZVI)has attracted much attention due to its small particle size and large specific surface area.Since nZVI is easy to aggregate and oxidize,it needs to be modified.The study of bimetallic,sulfide-modified nZVI activated persulfate(PS)loaded with nZVI and Fe for degradation were presented.

关 键 词：纳米零价铁 过硫酸盐 降解 

分 类 号：X703[环境科学与工程—环境工程]