类普鲁士蓝衍生物活化过一硫酸盐降解罗丹明B  

Degradation of rhodamine B by peroxymonosulfate activated by Prussian blue analogue derivatives

作　　者：陈贵梅 谢雨芸 杨有威 高艳 王春英 CHEN Guimei;XIE Yuyun;YANG Youwei;GAO Yan;WANG Chunying(Jiangxi Province Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy,Ganzhou 341000,Jiangxi,China;School of Resources and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]矿冶环境污染防控江西省重点实验室,江西赣州341000 [2]江西理工大学资源与环境工程学院,江西赣州341000

出　　处：《化工学报》2024年第10期3804-3814,共11页CIESC Journal

基　　金：江西省自然科学基金面上项目(20232BAB203040);江西理工大学“青年优秀人才支持计划”项目(JXUSTQJYX2016003)。

摘　　要：采用铜铁类普鲁士蓝衍生物(Cu_(n)Fe_(1)-PBAs)活化过一硫酸盐(PMS)降解罗丹明B(RhB),考察铁铜摩尔比、催化剂投加量、PMS与RhB的摩尔比、起始pH和水中常见离子对RhB降解的影响。结果表明:Cu_(2)Fe_(1)-PBAs可以有效活化PMS降解RhB。在RhB浓度为20 mg/L,Cu_(2)Fe_(1)-PBAs用量为0.6 g/L,PMS浓度为0.513 g/L,碱性条件时最有利于RhB降解。NO^(-)_(3)、HCO^(-)_(3)、Cl-促进RhB的降解,SO^(2-)_(4)抑制RhB的降解。硫酸根自由基(SO^(-)_(4)·)、羟基自由基(·OH)、单线态氧(^(1)O_(2))和超氧自由基(·O^(-)_(2))均参与Cu_(2)Fe_(1)-PBAs活化PMS降解RhB反应过程。Permonosulfate(PMS)was activated by copper-iron Prussian blue derivatives(Cu_(n)Fe_(1)-PBAs)to degrade rhodamine B(RhB).The effects of the molar ratio of iron to copper,the amount of catalyst,the molar ratio of PMS to RhB,initial pH and common ions in water on RhB degradation were investigated.The results showed that Cu_(2)Fe_(1)-PBAs could effectively activate PMS to degrade RhB.RhB degradation was most favorable under alkaline conditions when RhB concentration was 20 mg/L,Cu_(2)Fe_(1)-PBAs dosage was 0.6 g/L,and PMS concentration was 0.513 g/L.NO^(-)_(3),HCO^(-)_(3)and Cl-promoted the degradation of RhB,while SO^(2-)_(4)inhibited the degradation of RhB.Sulfate radical(SO^(-)_(4)·),hydroxyl radical(·OH),singlet oxygen(^(1)O_(2))and superoxide radical(·O^(-)_(2))all participated in the RhB degradation of Cu_(2)Fe_(1)-PBAs activated PMS.

关 键 词：类普鲁士蓝衍生物 过一硫酸盐 罗丹明B 单线态氧 超氧自由基 

分 类 号：TQ028.8[化学工程]