Hai Li, Xing Wang, Shilu Zhang, Chongju Mu, Faguo Li, Wei Wang, Fengwei Shi, Jianglei Hu
{"title":"三乙烯四胺功能化单宁酸/海藻酸钠复合气凝胶及其对Cu2+和Pb2的吸附性能。","authors":"Hai Li, Xing Wang, Shilu Zhang, Chongju Mu, Faguo Li, Wei Wang, Fengwei Shi, Jianglei Hu","doi":"10.1016/j.ijbiomac.2025.148181","DOIUrl":null,"url":null,"abstract":"<p><p>Heavy metal pollution in water could lead to a major hazard to human health and environmental integrity, which necessitates the urgent development of effective remediation strategies for removing poisonous heavy metals from wastewater. A new dual-network aerogel adsorbent (STT) was fabricated using modified tannic acid (TA) and sodium alginate (SA) to remove Cu<sup>2+</sup> and Pb<sup>2+</sup> from water. The influence of various factors on the adsorption process of STT was investigated. Results indicated that, compared with calcium alginate (CA) aerogel, the mechanical property of STT aerogel was enhanced to 14.0 kg·cm<sup>-2</sup>. The maximum capacities of adsorption for Cu<sup>2+</sup> and Pb<sup>2+</sup> could reach 304.30 mg·g<sup>-1</sup> and 422.80 mg·g<sup>-1</sup>, respectively. After 10 regeneration cycles, STT maintained the adsorption rates of 84.58 % for Cu<sup>2+</sup> and 87.89 % for Pb<sup>2+</sup>. Analysis of kinetic, thermodynamic, and isothermal adsorption models suggested that the adsorption mechanism involved a spontaneous monolayer chemisorption process. The adsorption mechanism of STT was investigated using XPS and FT-IR, illustrating the adsorption of Cu<sup>2+</sup> and Pb<sup>2+</sup> by STT occurred through ion exchange and complexation processes. The STT adsorbent, in general, demonstrated promising potential as a heavy metal adsorbent.</p>","PeriodicalId":333,"journal":{"name":"International Journal of Biological Macromolecules","volume":" ","pages":"148181"},"PeriodicalIF":8.5000,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Triethylenetetramine functionalized tannic acid/sodium alginate composite aerogel and its adsorption performance of Cu<sup>2+</sup> and Pb<sup>2</sup><sup />.\",\"authors\":\"Hai Li, Xing Wang, Shilu Zhang, Chongju Mu, Faguo Li, Wei Wang, Fengwei Shi, Jianglei Hu\",\"doi\":\"10.1016/j.ijbiomac.2025.148181\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Heavy metal pollution in water could lead to a major hazard to human health and environmental integrity, which necessitates the urgent development of effective remediation strategies for removing poisonous heavy metals from wastewater. A new dual-network aerogel adsorbent (STT) was fabricated using modified tannic acid (TA) and sodium alginate (SA) to remove Cu<sup>2+</sup> and Pb<sup>2+</sup> from water. The influence of various factors on the adsorption process of STT was investigated. Results indicated that, compared with calcium alginate (CA) aerogel, the mechanical property of STT aerogel was enhanced to 14.0 kg·cm<sup>-2</sup>. The maximum capacities of adsorption for Cu<sup>2+</sup> and Pb<sup>2+</sup> could reach 304.30 mg·g<sup>-1</sup> and 422.80 mg·g<sup>-1</sup>, respectively. After 10 regeneration cycles, STT maintained the adsorption rates of 84.58 % for Cu<sup>2+</sup> and 87.89 % for Pb<sup>2+</sup>. Analysis of kinetic, thermodynamic, and isothermal adsorption models suggested that the adsorption mechanism involved a spontaneous monolayer chemisorption process. The adsorption mechanism of STT was investigated using XPS and FT-IR, illustrating the adsorption of Cu<sup>2+</sup> and Pb<sup>2+</sup> by STT occurred through ion exchange and complexation processes. The STT adsorbent, in general, demonstrated promising potential as a heavy metal adsorbent.</p>\",\"PeriodicalId\":333,\"journal\":{\"name\":\"International Journal of Biological Macromolecules\",\"volume\":\" \",\"pages\":\"148181\"},\"PeriodicalIF\":8.5000,\"publicationDate\":\"2025-10-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Biological Macromolecules\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1016/j.ijbiomac.2025.148181\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Biological Macromolecules","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1016/j.ijbiomac.2025.148181","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Triethylenetetramine functionalized tannic acid/sodium alginate composite aerogel and its adsorption performance of Cu2+ and Pb2.
Heavy metal pollution in water could lead to a major hazard to human health and environmental integrity, which necessitates the urgent development of effective remediation strategies for removing poisonous heavy metals from wastewater. A new dual-network aerogel adsorbent (STT) was fabricated using modified tannic acid (TA) and sodium alginate (SA) to remove Cu2+ and Pb2+ from water. The influence of various factors on the adsorption process of STT was investigated. Results indicated that, compared with calcium alginate (CA) aerogel, the mechanical property of STT aerogel was enhanced to 14.0 kg·cm-2. The maximum capacities of adsorption for Cu2+ and Pb2+ could reach 304.30 mg·g-1 and 422.80 mg·g-1, respectively. After 10 regeneration cycles, STT maintained the adsorption rates of 84.58 % for Cu2+ and 87.89 % for Pb2+. Analysis of kinetic, thermodynamic, and isothermal adsorption models suggested that the adsorption mechanism involved a spontaneous monolayer chemisorption process. The adsorption mechanism of STT was investigated using XPS and FT-IR, illustrating the adsorption of Cu2+ and Pb2+ by STT occurred through ion exchange and complexation processes. The STT adsorbent, in general, demonstrated promising potential as a heavy metal adsorbent.
期刊介绍：
The International Journal of Biological Macromolecules is a well-established international journal dedicated to research on the chemical and biological aspects of natural macromolecules. Focusing on proteins, macromolecular carbohydrates, glycoproteins, proteoglycans, lignins, biological poly-acids, and nucleic acids, the journal presents the latest findings in molecular structure, properties, biological activities, interactions, modifications, and functional properties. Papers must offer new and novel insights, encompassing related model systems, structural conformational studies, theoretical developments, and analytical techniques. Each paper is required to primarily focus on at least one named biological macromolecule, reflected in the title, abstract, and text.
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