研究论文Article*E-mail:wtwang@zstu.edu.cn;ding@nanoctr.cnReceivedJanuary12,2023;publishedFebruary27,2023.SupportinginformationforthisarticleisavailablefreeofchargeviatheInternetathttp://sioc-journal.cn.ProjectsupportedbytheNationalNaturalScienceFoundationofChina(Nos.22178324,21908201),ZhejiangProvincialNaturalScienceFoundation(No.LY21B060011)andChinaPostdoctoralScienceFoundation(No.2020M671793).国家自然科学基金(Nos.22178324,21908201)、浙江省自然科学基金(No.LY21B060011)和中国博士后科学基金(No.2020M671793)资助.222http://sioc-journal.cn©2023ShanghaiInstituteofOrganicChemistry,ChineseAcademyofSciencesActaChim.Sinica2023,81,222—230化学学报ACTACHIMICASINICA双功能气凝胶吸附-降解协同处理染料废水王文涛*,a赖欣婷a闫士全a朱雷a姚玉元a丁黎明*,b(a浙江理工大学材料科学与工程学院杭州310018)(b国家纳米科学中心北京100190)摘要针对吸附法处理染料废水易产生二次污染和基于过一硫酸氢盐(PMS)的高级氧化技术降解有机污染物易受水体复杂成分影响的问题,设计构筑具有吸附和活化PMS功能的铁掺杂纤维素纳米纤维/还原氧化石墨烯气凝胶(CNFs/RGO/Fe)用于吸附-降解协同处理染料废水.CNFs/RGO/Fe对阳离子染料具有良好的选择性吸附功能,其对亚甲基蓝(MB)、罗丹明B(RhB)和结晶紫(CV)的最大吸附容量分别高达655.1mg/g、696.5mg/g和962.1mg/g,吸附过程符合准二级动力学模型和Langmuir等温模型.将吸附染料的CNFs/RGO/Fe置于PMS溶液中,可以促进PMS活化产生大量•OH,实现对吸附质的降解和气凝胶的再生.经5次吸附-降解循环后,CNFs/RGO/Fe对染料去除率仍保持在75%以上,表现出良好的重复使用性.本研究有望为去除复杂水体中有机污染物提供新思路.关键词吸附;降解;气凝胶;高级氧化技术;染料废水SynergisticTreatmentofDyeWastewaterbytheAdsorption-DegradationofaBifunctionalAerogelWang,Wentao*,aLai,XintingaYan,ShiquanaZhu,LeiaYao,YuyuanaDing,Liming*,b(aSchoolofMaterialsScienceandEngineering,ZhejiangSci-TechUniversity,Hangzhou310018,China)(bNationalCenterforNanoscienceandTechnology,Beijing100190,China)AbstractDyewastewaterwithhightoxicityandpoorbiodegradabilityposesaconsiderablethreattohumanhealthandtheecosystem.Althoughtheadsorptioneffectivelyremovesorganicpollutantsfromwastew...
