铁基双金属催化剂活化过硫酸单盐(PMS)去除诺氟沙星性能研究  

Study on the removal performance of norfloxacin by activated peroxymonosulfate(PMS)over iron-based bimetallic catalysts

作　　者：吴世红[1,2] 李靖 张扬[3] 关卫省[3] 郭冀峰[3] WU Shihong;LI Jing;ZHANG Yang;CUAN Weisheng;CUO Jifeng(Tianjin Institute of Water Transport Engineering,Ministry of Transport,Tianjin 300456,China;Tianke Academy Environmental Technology Development(Tianjin)Co.,Ltd.,Tianjin 300456,China;Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of the Ministry of Education,School of Water and Environment,Chang’an University,Xi’an 710054,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]天科院环境科技发展(天津)有限公司,天津300456 [3]长安大学水利与环境学院旱区地下水文与生态效应教育部重点实验室,陕西西安710054

出　　处：《应用化工》2024年第6期1329-1332,共4页Applied Chemical Industry

基　　金：2022年度交通运输行业重点科技项目(2022-MS5-139);陕西省教育厅服务地方专项(22JE08)。

摘　　要：采用过渡金属Cu、Co和Mn对纳米零价铁(nZVI)掺杂改性,制备铁基双金属nZVI/Cu、nZVI/Co和nZVI/Mn催化剂,用于活化过氧单硫酸盐(PMS),研究了不同过渡金属、催化体系和过渡金属掺杂量对催化降解诺氟沙星(NOR)性能的影响。结果表明,当Co的掺杂量为5%时,nZVI/Co-5%/PMS活化体系在120 min内实现了84.4%的NOR去除。优异的活化降解性能主要得益于过渡金属Co的引入抑制了nZVI的钝化和团聚。The transition metals(Cu,Co and Mn)were used to dope-modify nanozero-valent iron(nZVI),and iron-based bimetallic nZVI/Cu,nZVI/Co and nZVI/Mn catalysts were prepared for the activation of PMS to achieve the efficient degradation of norfloxacin(NOR).The effects of different transition metals,catalytic systems and transition metal doping mass ratios on the catalytic degradation performance of NOR were investigated.The results showed that the nZVI/Co-5%/PMS activated system achieved 84.4%NOR removal within 120 min when the doping amount of Co was 5%.The excellent activated degradation performance was mainly attributed to the introduction of transition metal Co to inhibit the passivation and agglomeration of nZVI.

关 键 词：诺氟沙星 降解 纳米零价铁 过硫酸盐活化 

分 类 号：TQ465.4[化学工程—制药化工]