文献类型：期刊文献

英文题名：Facile synthesis of sodium alginate-based/nano-montmorillonite composite core-shell hydrogels for effective removal of methylenblue

作者：Han, Yuxuan[1]; Yuan, Yizhong[1]; Sun, Jinyu[1]; Tian, Xiaohui[1]; Yu, Huimei[2]

机构：[1] School of Materials Science and Engineering, Shanghai Key Laboratory of Advanced Polymeric Materials, East China University of Science and Technology, Shanghai, China; [2] School of Materials Science and Engineering, Key Laboratory of Special Functional Polymeric Materials and Related Technology [Ministry of Education], East China University of Science and Technology, Shanghai, China

年份：2026

卷号：304

期号：2

起止页码：391

外文期刊名：Colloid and Polymer Science

收录：EI(收录号：20261620540947)

语种：英文

外文关键词：Crosslinking - Dyes - Hydrogels - Isotherms - Morphology - Sodium

摘要：The treatment of dye wastewater necessitates efficient and sustainable adsorbents. In this study, a novel sodium alginate/ carrageenan/montmorillonite@carboxymethyl cellulose nanofiber (SA/CRG/MMt@CMCNF) core-shell hydrogel, containing abundant adsorption sites, was synthesized via a facile ion-crosslinking method for effective methylene blue (MB) removal. The surface characteristics including morphology, functional groups, and pore distribution of the SA/CRG/ MMt@CMCNF hydrogel were analyzed. FTIR, BET, and XPS analyses revealed that the addition of MMt provided more adsorption sites. The composite hydrogel exhibited a maximum adsorption capacity of 228.83 mg·g? 1 under optimal conditions and was well-described by both the pseudo-second-order kinetic model and Langmuir isotherm model. Further-more, it maintained 75% MB removal efficiency after five adsorption cycles. To our knowledge, this study introduces the first incorporation of CMCNF and MMt into the SA/CRG composite system to form a core-shell hydrogel for MB adsorp-tion. Overall, the SA/CRG/MMt@CMCNF hydrogel offers several advantages, including a simple production process, low cost, high adsorption capacity, and good recyclability. This research presents a design strategy for multifunctional hydrogel composites incorporating nanomaterials, providing novel insights into the development of dye treatment technologies. ? The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.