{"title":"慢氧化纤维素纳米纤维基Zn-BTC复合材料高效去除Cd2+和Ni2+","authors":"Zilong Deng, Zixuan Wu, Zhongqi Zhao, Haoyu Gong, Yan Zhao, Donglu Fang, Hongcai Zhang","doi":"10.1007/s10853-025-11476-3","DOIUrl":null,"url":null,"abstract":"<div><p>Aiming at severe heavy metal pollution in wastewater, a novel nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF was synthesized under ambient conditions for high-efficiency adsorption of Cd<sup>2+</sup> and Ni<sup>2+</sup>. SEM, FTIR, XRD, XPS and N<sub>2</sub>-adsorption/desorption were conducted and the removal performance of Cd<sup>2+</sup> and Ni<sup>2+</sup> were discussed in aqueous phase under different conditions. TOCNF loading elevated the crystallinity for the construction of more rigid scaffold. Meanwhile, the physical entanglement, electrostatic attractions, hydrogen and coordination bonds further improved the porosity and stability of nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF. The composite exhibited maximum adsorption capacities of 230 mg/g and 67 mg/g for Cd<sup>2</sup>⁺ and Ni<sup>2</sup>⁺, respectively. Adsorption kinetics and isothermal adsorption suggested that the quasi-second-order kinetic model was more suitable to describe the adsorption than the quasi-first-order kinetic model. Furthermore, the adsorption process could be well described by Langmuir model, during which, both Cd<sup>2+</sup> and Ni<sup>2+</sup> were adsorbed at surface through monolayer adsorption. In addition, all R<sub>L</sub> values were in the range of 0–1, indicating favorable adsorption of Cd<sup>2+</sup> and Ni<sup>2+</sup> of the composite. Therefore, nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF showed great prospects for the enhancement of water quality polluted by heavy metal.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"60 37","pages":"16921 - 16933"},"PeriodicalIF":3.9000,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tempo-oxidize cellulose nanofibers based Zn–BTC composite for high-efficiency Cd2+ and Ni2+ removal\",\"authors\":\"Zilong Deng, Zixuan Wu, Zhongqi Zhao, Haoyu Gong, Yan Zhao, Donglu Fang, Hongcai Zhang\",\"doi\":\"10.1007/s10853-025-11476-3\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Aiming at severe heavy metal pollution in wastewater, a novel nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF was synthesized under ambient conditions for high-efficiency adsorption of Cd<sup>2+</sup> and Ni<sup>2+</sup>. SEM, FTIR, XRD, XPS and N<sub>2</sub>-adsorption/desorption were conducted and the removal performance of Cd<sup>2+</sup> and Ni<sup>2+</sup> were discussed in aqueous phase under different conditions. TOCNF loading elevated the crystallinity for the construction of more rigid scaffold. Meanwhile, the physical entanglement, electrostatic attractions, hydrogen and coordination bonds further improved the porosity and stability of nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF. The composite exhibited maximum adsorption capacities of 230 mg/g and 67 mg/g for Cd<sup>2</sup>⁺ and Ni<sup>2</sup>⁺, respectively. Adsorption kinetics and isothermal adsorption suggested that the quasi-second-order kinetic model was more suitable to describe the adsorption than the quasi-first-order kinetic model. Furthermore, the adsorption process could be well described by Langmuir model, during which, both Cd<sup>2+</sup> and Ni<sup>2+</sup> were adsorbed at surface through monolayer adsorption. In addition, all R<sub>L</sub> values were in the range of 0–1, indicating favorable adsorption of Cd<sup>2+</sup> and Ni<sup>2+</sup> of the composite. Therefore, nFe<sub>3</sub>O<sub>4</sub>&Zn–BTC@TOCNF showed great prospects for the enhancement of water quality polluted by heavy metal.</p></div>\",\"PeriodicalId\":645,\"journal\":{\"name\":\"Journal of Materials Science\",\"volume\":\"60 37\",\"pages\":\"16921 - 16933\"},\"PeriodicalIF\":3.9000,\"publicationDate\":\"2025-09-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10853-025-11476-3\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10853-025-11476-3","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Tempo-oxidize cellulose nanofibers based Zn–BTC composite for high-efficiency Cd2+ and Ni2+ removal
Aiming at severe heavy metal pollution in wastewater, a novel nFe3O4&Zn–BTC@TOCNF was synthesized under ambient conditions for high-efficiency adsorption of Cd2+ and Ni2+. SEM, FTIR, XRD, XPS and N2-adsorption/desorption were conducted and the removal performance of Cd2+ and Ni2+ were discussed in aqueous phase under different conditions. TOCNF loading elevated the crystallinity for the construction of more rigid scaffold. Meanwhile, the physical entanglement, electrostatic attractions, hydrogen and coordination bonds further improved the porosity and stability of nFe3O4&Zn–BTC@TOCNF. The composite exhibited maximum adsorption capacities of 230 mg/g and 67 mg/g for Cd2⁺ and Ni2⁺, respectively. Adsorption kinetics and isothermal adsorption suggested that the quasi-second-order kinetic model was more suitable to describe the adsorption than the quasi-first-order kinetic model. Furthermore, the adsorption process could be well described by Langmuir model, during which, both Cd2+ and Ni2+ were adsorbed at surface through monolayer adsorption. In addition, all RL values were in the range of 0–1, indicating favorable adsorption of Cd2+ and Ni2+ of the composite. Therefore, nFe3O4&Zn–BTC@TOCNF showed great prospects for the enhancement of water quality polluted by heavy metal.
期刊介绍：
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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