Qihua Zhou , Fei He , Rui Zhao , Yating Xu , Xiongzi Dong , Na Li , Yanzhen Lu , Richun Rao
{"title":"用环保型石榴皮多酚改性的聚乙烯醇水凝胶的制备：一种吸附刚果红的高效再生吸附剂","authors":"Qihua Zhou , Fei He , Rui Zhao , Yating Xu , Xiongzi Dong , Na Li , Yanzhen Lu , Richun Rao","doi":"10.1016/j.colcom.2024.100786","DOIUrl":null,"url":null,"abstract":"<div><p>This study reports the fabrication of polyvinyl alcohol (PVA) based hydrogel with pomegranate peel polyphenols (PPP) via the freezing-thawing cycles method, employed as a cost-effective and efficient Congo Red (CR) adsorbent. Numerous techniques, including TGA, SEM, FTIR, XRD, DLS, BET, together with universal stretching machine, were employed to confirm the successful synthesis of PVA/PPP hydrogels with porous structures. When compared to pure PVA hydrogel, the PVA/PPP hydrogels showed greater adsorption capabilities for CR. The kinetic data coincided with pseudo-second-order modeling (R<sup>2</sup> = 0.9927). Freundlich isotherm modeling was highly-conformed through adsorption (R<sup>2</sup> = 0.9985). CR adsorption appeared to be exothermic and spontaneous, according to the thermodynamic study. Moreover, following five consecutive runs, adsorption effectiveness for PVA/PPP hydrogels remained above 88%, demonstrating their exceptional reusability. The mechanisms analysis revealed that the CR adsorption was facilitated by electrostatic attraction, hydrogen bonding, together with π-π stacking interplays.</p></div>","PeriodicalId":10483,"journal":{"name":"Colloid and Interface Science Communications","volume":"60 ","pages":"Article 100786"},"PeriodicalIF":4.7000,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2215038224000219/pdfft?md5=888538f563db7295a5f1aec18ad7a7bf&pid=1-s2.0-S2215038224000219-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Preparation of polyvinyl alcohol hydrogel modified with environment-friendly pomegranate peel polyphenols: An efficient and regenerative adsorbent for Congo red adsorption\",\"authors\":\"Qihua Zhou , Fei He , Rui Zhao , Yating Xu , Xiongzi Dong , Na Li , Yanzhen Lu , Richun Rao\",\"doi\":\"10.1016/j.colcom.2024.100786\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study reports the fabrication of polyvinyl alcohol (PVA) based hydrogel with pomegranate peel polyphenols (PPP) via the freezing-thawing cycles method, employed as a cost-effective and efficient Congo Red (CR) adsorbent. Numerous techniques, including TGA, SEM, FTIR, XRD, DLS, BET, together with universal stretching machine, were employed to confirm the successful synthesis of PVA/PPP hydrogels with porous structures. When compared to pure PVA hydrogel, the PVA/PPP hydrogels showed greater adsorption capabilities for CR. The kinetic data coincided with pseudo-second-order modeling (R<sup>2</sup> = 0.9927). Freundlich isotherm modeling was highly-conformed through adsorption (R<sup>2</sup> = 0.9985). CR adsorption appeared to be exothermic and spontaneous, according to the thermodynamic study. Moreover, following five consecutive runs, adsorption effectiveness for PVA/PPP hydrogels remained above 88%, demonstrating their exceptional reusability. The mechanisms analysis revealed that the CR adsorption was facilitated by electrostatic attraction, hydrogen bonding, together with π-π stacking interplays.</p></div>\",\"PeriodicalId\":10483,\"journal\":{\"name\":\"Colloid and Interface Science Communications\",\"volume\":\"60 \",\"pages\":\"Article 100786\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2024-04-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S2215038224000219/pdfft?md5=888538f563db7295a5f1aec18ad7a7bf&pid=1-s2.0-S2215038224000219-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Colloid and Interface Science Communications\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2215038224000219\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Colloid and Interface Science Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2215038224000219","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Preparation of polyvinyl alcohol hydrogel modified with environment-friendly pomegranate peel polyphenols: An efficient and regenerative adsorbent for Congo red adsorption
This study reports the fabrication of polyvinyl alcohol (PVA) based hydrogel with pomegranate peel polyphenols (PPP) via the freezing-thawing cycles method, employed as a cost-effective and efficient Congo Red (CR) adsorbent. Numerous techniques, including TGA, SEM, FTIR, XRD, DLS, BET, together with universal stretching machine, were employed to confirm the successful synthesis of PVA/PPP hydrogels with porous structures. When compared to pure PVA hydrogel, the PVA/PPP hydrogels showed greater adsorption capabilities for CR. The kinetic data coincided with pseudo-second-order modeling (R2 = 0.9927). Freundlich isotherm modeling was highly-conformed through adsorption (R2 = 0.9985). CR adsorption appeared to be exothermic and spontaneous, according to the thermodynamic study. Moreover, following five consecutive runs, adsorption effectiveness for PVA/PPP hydrogels remained above 88%, demonstrating their exceptional reusability. The mechanisms analysis revealed that the CR adsorption was facilitated by electrostatic attraction, hydrogen bonding, together with π-π stacking interplays.
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Colloid and Interface Science Communications provides a forum for the highest visibility and rapid publication of short initial reports on new fundamental concepts, research findings, and topical applications at the forefront of the increasingly interdisciplinary area of colloid and interface science.
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