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大孔型树脂有些什么特点?.pdf
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孔型 树脂 有些 什么 特点
13工业水处理 2023-07,43(7)畅子雯,等:废水中重金属的选择性去除与资源化回收研究进展position of nickel ions on the cathode J.Applied Catalysis B:Environmental,2014,144:478-485.49 YU Haiyan,SHAO Penghui,FANG Lili,et al.Palladium ion-imprinted polymers with PHEMA polymer brushes:Role of grafting polymerization degree in anti-interference J.Chemical Engineering Journal,2019,359:176-185.50 CHANG Ziwen,YANG Liming,ZHANG Kai,et al.Weak electric field enabling enhanced selectivity of tannic acid-graphene aerogels for Pb2+harvesting from wastewaterJ.Chemical Engineering Journal,2021,416:129144.51 WANG Dong,SONG Jianan,WEN Jun,et al.Uranium extraction:Significantly enhanced uranium extraction from seawater with mass produced fully amidoximated nanofiber adsorbentJ.Advanced Energy Materials,2018,8(33):1870143.52 WU Tong,LIU Chong,KONG Biao,et al.Amidoxime-functionalized macroporous carbon self-refreshed electrode materials for rapid and high-capacity removal of heavy metal from water J.ACS Central Science,2019,5(4):719-726.53 FU Kaixing,LIU Xia,LV Chunyu,et al.Superselective Hg()removal from water using a thiol-laced MOF-based sponge monolith:Performance and mechanismJ.Environmental Science&Technology,2022,56(4):2677-2688.54 WANG Zhongying,TU Qingsong,SIM A,et al.Superselective removal of lead from water by two-dimensional MoS2 nanosheets and layer-stacked membranes J.Environmental Science&Technology,2020,54(19):12602-12611.55 PAN Meilan,SHAN Chao,ZHANG Xiaolin,et al.Environmentally friendly in situ regeneration of graphene aerogel as a model conductive adsorbentJ.Environmental Science&Technology,2018,52(2):739-746.56 LIU Tian,YUAN Jili,ZHANG Bo,et al.Removal and recovery of uranium from groundwater using direct electrochemical reduction method:Performance and implications J.Environmental Science&Technology,2019,53(24):14612-14619.57 DOULAKAS L,NOVY K,STUCKI S,et al.Recovery of Cu,Pb,Cd and Zn from synthetic mixture by selective electrodeposition in chloride solution J.Electrochimica Acta,2000,46(2/3):349-356.58 ZHAO Xu,GUO Libao,QU Jiuhui.Photoelectrocatalytic oxidation of Cu-EDTA complex and electrodeposition recovery of Cu in a continuous tubular photoelectrochemical reactor J.Chemical Engineering Journal,2014,239:53-59.59 WU Caicai,GAO Jing,LIU Youzhi,et al.High-gravity intensified electrodeposition for efficient removal of Cd2+from heavy metal wastewaterJ.Separation and Purification Technology,2022,289:120809.60 ZHANG Lingen,XU Zhenming,HE Zhen.Selective recovery of lead and zinc through controlling cathodic potential in a bioelectrochemically-assisted electrodeposition systemJ.Journal of Hazardous Materials,2020,386:121941.61 SHAO Penghui,ZHOU Xiaoyu,CAO Ying,et al.Understanding role of reactor configuration in electrochemical de complexation of Ni-EDTA via experiments and simulationsJ.Environmental Functional Materials,2022,1(2):149-159.作者简介 畅子雯(1996),博士研究生。E-mail:。通讯作者:邵鹏辉,博士,副教授。E-mail:penghui_。收稿日期 2023-04-24(修改稿)水处理知识讲座大孔型树脂有些什么特点?大孔型树脂是在凝胶型树脂制备的基础上改进发展制得,但有它的特点:1)树脂孔的结构上,存在永久性微孔。其大小、孔道的数量和分布情况,是根据需要在制备过程中通过致孔剂来调节,不是仅仅通过交联度来控制的。树脂无论在干、湿情况下都永久地存在孔道。2)树脂的表面积。由于内部为多孔海绵状,其表面积可以人为调节,可以大到 1 000多 m2/g。3)交换速度。由于大孔树脂内部微孔多而大,表面积大,离子交换扩散速度增大,交换速度加快,有的比凝胶型大 10倍。4)应用范围。扩大到非水体系,甚至气体也可以用。5)稳定性。耐溶胀收缩性能好。有好的耐化性能和耐辐照性能。耐磨损性能也较好。有良好的耐热和耐冷热变化性能。有较强的抗有机物污染性能。流动性能好,对流体阻力小。一般用于吸附和分离大分子质量物质。但大孔型树脂的价格贵,体积交换容量低,再生剂耗量略高。(摘自 工业水处理技术问答及常用数据)

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