Adsorption of sulfadiazine on novel bilayer porous resin: Synergism of micropore filling and anion exchange

Materials Science and Engineering: B Pub Date : 2023-11-28 DOI:10.1016/j.mseb.2023.117039

Wei Sun, Guqing Xiao, Qiudong Meng

{"title":"Adsorption of sulfadiazine on novel bilayer porous resin: Synergism of micropore filling and anion exchange","authors":"Wei Sun, Guqing Xiao, Qiudong Meng","doi":"10.1016/j.mseb.2023.117039","DOIUrl":null,"url":null,"abstract":"A novel bilayer porous resin with micropore filling and anion exchange (PsCH2BP) was synthesized. The aim was to investigate the adsorption of sulfadiazine on PsCH2BP. The micropore area of PsCH2BP was reduced by 73.91 % after the adsorption of sulfadiazine. PsCH2BP exhibited the synergism of micropore filling and anion exchange in the adsorption of sulfadiazine. Within the pH range of 7.29–13.31, the adsorption capacity trend of sulfadiazine on PsCH2BP was consistent with its ionization curve of pka 6.48. The adsorption of sulfadiazine on PsCH2BP was endothermic, spontaneous, entropy increase and heterogeneous multilayer adsorption, reflecting the bilayer pore structure of PsCH2BP. 100 % C2H5OH and 4 % NaCl could desorb 75.13 % and 65.06 % of sulfadiazine adsorbed on PsCH2BP, respectively, reflecting the synergism of the micropore filling and anion exchange in the adsorption of sulfadiazine on PsCH2BP. 100 % of desorption ratio of sulfadiazine adsorbed by PsCH2BP was achieved with 4 mol/LNaOH.","PeriodicalId":501486,"journal":{"name":"Materials Science and Engineering: B","volume":"258 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering: B","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.mseb.2023.117039","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

A novel bilayer porous resin with micropore filling and anion exchange (PsCH₂BP) was synthesized. The aim was to investigate the adsorption of sulfadiazine on PsCH₂BP. The micropore area of PsCH₂BP was reduced by 73.91 % after the adsorption of sulfadiazine. PsCH₂BP exhibited the synergism of micropore filling and anion exchange in the adsorption of sulfadiazine. Within the pH range of 7.29–13.31, the adsorption capacity trend of sulfadiazine on PsCH₂BP was consistent with its ionization curve of pka 6.48. The adsorption of sulfadiazine on PsCH₂BP was endothermic, spontaneous, entropy increase and heterogeneous multilayer adsorption, reflecting the bilayer pore structure of PsCH₂BP. 100 % C₂H₅OH and 4 % NaCl could desorb 75.13 % and 65.06 % of sulfadiazine adsorbed on PsCH₂BP, respectively, reflecting the synergism of the micropore filling and anion exchange in the adsorption of sulfadiazine on PsCH₂BP. 100 % of desorption ratio of sulfadiazine adsorbed by PsCH₂BP was achieved with 4 mol/LNaOH.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

新型双层多孔树脂对磺胺嘧啶的吸附:微孔填充与阴离子交换的协同作用

合成了一种具有微孔填充和阴离子交换功能的双层多孔树脂(PsCH2BP)。目的是研究磺胺嘧啶在PsCH2BP上的吸附。吸附磺胺嘧啶后，PsCH2BP的微孔面积减少了73.91%。PsCH2BP在吸附磺胺嘧啶过程中表现出微孔填充和阴离子交换的协同作用。在pH为7.29 ~ 13.31的范围内，磺胺嘧啶在PsCH2BP上的吸附量趋势与pka 6.48的电离曲线一致。磺胺嘧啶在PsCH2BP上的吸附是吸热、自发、熵增和非均相的多层吸附，反映了PsCH2BP的双层孔结构。100% C2H5OH和4% NaCl对吸附在PsCH2BP上的磺胺嘧啶的解吸率分别为75.13%和65.06%，反映了微孔填充和阴离子交换对PsCH2BP吸附磺胺嘧啶的协同作用。在4 mol/LNaOH条件下，PsCH2BP对磺胺嘧啶的解吸率达到100%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Materials Science and Engineering: B

自引率

0.00%

发文量