Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water.

IF 5.3 3区化学 Q1 POLYMER SCIENCE

Gels Pub Date : 2025-05-27 DOI:10.3390/gels11060397

Jiuqi Wei, Shilong Yang, Zhicheng Zhu, Jialu Lu, Bencong Zhang, Mingmei Zhang, Wei Wei

{"title":"Low-Temperature Dried Alginate/Silica Hybrid Aerogel Beads with Tunable Surface Functionalities for Removal of Lead Ions from Water.","authors":"Jiuqi Wei, Shilong Yang, Zhicheng Zhu, Jialu Lu, Bencong Zhang, Mingmei Zhang, Wei Wei","doi":"10.3390/gels11060397","DOIUrl":null,"url":null,"abstract":"Low-temperature dried alginate/silica hybrid aerogel beads with a large specific surface area (160.8 m2/g), low density (0.160 m2/g), and high degree of sphericity were successfully fabricated. Single networks of silica aerogels beads were synthesized via by calcining hybrid aerogel beads in air. Moreover, alginate-derived carbon/silica aerogel beads were also obtained by the thermal treatment of the hybrid aerogel beads in nitrogen, which were indicative of the double networks of the as-synthesized crack-free hybrid aerogel beads for the first time. The adsorption performances of above aerogel beads were also investigated. Meanwhile, using a common silane coupling agent as a modifying agent, a series of hybrid aerogel beads with tunable functional surfaces were obtained. The results showed that the obtained samples adsorbed Pb2+ well, and the hybrid aerogel beads modified with KH-590 exhibited an experimental maximum adsorption capacity of Pb2+ of 193.73 mg·g-1.","PeriodicalId":12506,"journal":{"name":"Gels","volume":"11 6","pages":""},"PeriodicalIF":5.3000,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12191618/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gels","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3390/gels11060397","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}

引用次数: 0

Abstract

Low-temperature dried alginate/silica hybrid aerogel beads with a large specific surface area (160.8 m²/g), low density (0.160 m²/g), and high degree of sphericity were successfully fabricated. Single networks of silica aerogels beads were synthesized via by calcining hybrid aerogel beads in air. Moreover, alginate-derived carbon/silica aerogel beads were also obtained by the thermal treatment of the hybrid aerogel beads in nitrogen, which were indicative of the double networks of the as-synthesized crack-free hybrid aerogel beads for the first time. The adsorption performances of above aerogel beads were also investigated. Meanwhile, using a common silane coupling agent as a modifying agent, a series of hybrid aerogel beads with tunable functional surfaces were obtained. The results showed that the obtained samples adsorbed Pb²⁺ well, and the hybrid aerogel beads modified with KH-590 exhibited an experimental maximum adsorption capacity of Pb²⁺ of 193.73 mg·g^-1.

查看原文本刊更多论文

低温干燥海藻酸盐/硅杂化气凝胶珠具有可调的表面功能，用于去除水中的铅离子。

成功制备了大比表面积（160.8 m2/g）、低密度（0.160 m2/g）、高球形度的低温干燥海藻酸盐/二氧化硅杂化气凝胶珠。通过在空气中煅烧杂化气凝胶球，合成了单网二氧化硅气凝胶球。此外，通过对杂化气凝胶珠在氮气中进行热处理，还获得了海藻酸盐衍生的碳/硅气凝胶珠，首次证明了合成的无裂纹杂化气凝胶珠具有双网状结构。研究了上述气凝胶珠的吸附性能。同时，以一种常见的硅烷偶联剂为改性剂，制备了一系列功能面可调的杂化气凝胶珠。结果表明，所制备的样品对Pb2+的吸附效果良好，KH-590改性的杂化气凝胶珠对Pb2+的最大吸附量为193.73 mg·g-1。

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分钟内获得全文求助全文

来源期刊

Gels POLYMER SCIENCE-

CiteScore

4.70

自引率

19.60%

发文量

707

审稿时长

11 weeks

期刊介绍： The journal Gels (ISSN 2310-2861) is an international, open access journal on physical (supramolecular) and chemical gel-based materials. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the maximum length of the papers, and full experimental details must be provided so that the results can be reproduced. Short communications, full research papers and review papers are accepted formats for the preparation of the manuscripts. Gels aims to serve as a reference journal with a focus on gel materials for researchers working in both academia and industry. Therefore, papers demonstrating practical applications of these materials are particularly welcome. Occasionally, invited contributions (i.e., original research and review articles) on emerging issues and high-tech applications of gels are published as special issues.