{"title":"Efficient Dye Removal by SA-g-P(AA-co-NIPAM/BENT) Composite Hydrogel","authors":"Kyohairwe Angela Mwesigye, Heyong Mu, Linhui Zhu, Yaoji Tang","doi":"10.1134/S0965545X24600893","DOIUrl":null,"url":null,"abstract":"<p>The composite hydrogel sodium graft poly(acrylic acid-<i>co</i>-<i>N</i>-isopropylacrylamide)/bentonite (SA-<i>g</i>-P(AA-<i>co</i>-NIPAM/BENT) emerges as an effective adsorbent to remove methylene blue (MB) and methyl violet (MV) from aqueous solutions through adsorption. Compared with the sodium graft poly(acrylic acid-<i>co</i>-<i>N</i>-isopropylacrylamide) graft copolymer SA-<i>g</i>-P(AA-<i>c</i>o-NIPAM), the growth rate in terms of adsorption capacities of MV and MB is 35.5% (from 310 to 420 mg/g) and 10.2% (from 293 to 323 mg/g), respectively, with an incorporation of 0.6 g of BENT. The adsorption of MB on SA-<i>g</i>-P(AA-<i>co</i>-NIPAM/BENT) is spontaneous while MV is nonspontaneous. In addition, adsorption of both dyes satisfies the Freundlich equation and the Pseudo second-order kinetic model.</p>","PeriodicalId":738,"journal":{"name":"Polymer Science, Series A","volume":"66 3","pages":"387 - 397"},"PeriodicalIF":1.0000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Polymer Science, Series A","FirstCategoryId":"1","ListUrlMain":"https://link.springer.com/article/10.1134/S0965545X24600893","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
The composite hydrogel sodium graft poly(acrylic acid-co-N-isopropylacrylamide)/bentonite (SA-g-P(AA-co-NIPAM/BENT) emerges as an effective adsorbent to remove methylene blue (MB) and methyl violet (MV) from aqueous solutions through adsorption. Compared with the sodium graft poly(acrylic acid-co-N-isopropylacrylamide) graft copolymer SA-g-P(AA-co-NIPAM), the growth rate in terms of adsorption capacities of MV and MB is 35.5% (from 310 to 420 mg/g) and 10.2% (from 293 to 323 mg/g), respectively, with an incorporation of 0.6 g of BENT. The adsorption of MB on SA-g-P(AA-co-NIPAM/BENT) is spontaneous while MV is nonspontaneous. In addition, adsorption of both dyes satisfies the Freundlich equation and the Pseudo second-order kinetic model.
复合水凝胶钠接枝聚丙烯酸-co- n -异丙基丙烯酰胺/膨润土（SA-g-P(AA-co-NIPAM/BENT)）是一种吸附去除水溶液中亚甲基蓝（MB）和甲基紫（MV）的有效吸附剂。与钠接枝聚（丙烯酸-co- n -异丙基丙烯酰胺）接枝共聚物SA-g-P（AA-co-NIPAM）相比，在加入0.6 g BENT的情况下，MV和MB的吸附量分别增长了35.5%（从310到420 mg/g）和10.2%（从293到323 mg/g）。MB在SA-g-P（AA-co-NIPAM/BENT）上的吸附是自发的，而MV则是非自发的。此外，两种染料的吸附均满足Freundlich方程和伪二级动力学模型。
期刊介绍：
Polymer Science, Series A is a journal published in collaboration with the Russian Academy of Sciences. Series A includes experimental and theoretical papers and reviews devoted to physicochemical studies of the structure and properties of polymers (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed. Online submission via Internet to the Series A, B, and C is available at http://polymsci.ru.
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