An innovative and efficient strategy for removing Congo red using magnetic hollow Zn/Co zeolitic imidazolate framework composite.

IF 7.7 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Environmental Research Pub Date : 2024-11-21 DOI:10.1016/j.envres.2024.120399

Yu Su, Yanjie Wang, Lan Ding, Yanhua Chen, Daqian Song

{"title":"An innovative and efficient strategy for removing Congo red using magnetic hollow Zn/Co zeolitic imidazolate framework composite.","authors":"Yu Su, Yanjie Wang, Lan Ding, Yanhua Chen, Daqian Song","doi":"10.1016/j.envres.2024.120399","DOIUrl":null,"url":null,"abstract":"The discharge of wastewater containing Congo red (CR) poses a significant threat to aquatic ecosystems and human health, underscoring the urgent need for effective removal methods. In this study, we have developed a novel strategy for efficient removing CR, utilizing the synthesized magnetic hollow Zn/Co zeolitic imidazolate framework composite (MH-ZIF). Comprehensive characterization of MH-ZIF and comparison with contrasting materials were conducted. The adsorption behavior of MH-ZIF towards CR followed the pseudo-second-order kinetic model and Langmuir isothermal adsorption model, demonstrating monolayer chemisorption. Remarkably, MH-ZIF exhibited an impressive adsorption capacity of 1167.9 mg·g-1 for CR at 293 K. The addition of merely 0.15 g·L-1 of MH-ZIF achieved nearly complete adsorption of CR within a concentration of 150 mg·L-1. With the assistance of an external magnetic field, CR adsorbed on MH-ZIF can be effectively and swiftly removed within just 30 s. Hence, MH-ZIF demonstrates great promise in effectively removing CR from wastewater, attributed to its high adsorption capacity, selectivity, and magnetic properties.","PeriodicalId":312,"journal":{"name":"Environmental Research","volume":" ","pages":"120399"},"PeriodicalIF":7.7000,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.envres.2024.120399","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

The discharge of wastewater containing Congo red (CR) poses a significant threat to aquatic ecosystems and human health, underscoring the urgent need for effective removal methods. In this study, we have developed a novel strategy for efficient removing CR, utilizing the synthesized magnetic hollow Zn/Co zeolitic imidazolate framework composite (MH-ZIF). Comprehensive characterization of MH-ZIF and comparison with contrasting materials were conducted. The adsorption behavior of MH-ZIF towards CR followed the pseudo-second-order kinetic model and Langmuir isothermal adsorption model, demonstrating monolayer chemisorption. Remarkably, MH-ZIF exhibited an impressive adsorption capacity of 1167.9 mg·g^-1 for CR at 293 K. The addition of merely 0.15 g·L^-1 of MH-ZIF achieved nearly complete adsorption of CR within a concentration of 150 mg·L^-1. With the assistance of an external magnetic field, CR adsorbed on MH-ZIF can be effectively and swiftly removed within just 30 s. Hence, MH-ZIF demonstrates great promise in effectively removing CR from wastewater, attributed to its high adsorption capacity, selectivity, and magnetic properties.

查看原文本刊更多论文

利用磁性中空锌/钴沸石咪唑酸框架复合材料去除刚果红的创新高效策略。

含有刚果红（CR）的废水排放对水生生态系统和人类健康构成了严重威胁，因此迫切需要有效的去除方法。在本研究中，我们利用合成的磁性空心 Zn/Co 唑基咪唑啉框架复合材料（MH-ZIF），开发了一种高效去除刚果红的新策略。我们对 MH-ZIF 进行了全面的表征，并与对比材料进行了比较。MH-ZIF 对 CR 的吸附行为遵循伪二阶动力学模型和 Langmuir 等温吸附模型，表现出单层化学吸附。值得注意的是，在 293 K 条件下，MH-ZIF 对 CR 的吸附容量达到了惊人的 1167.9 mg-g-1。因此，MH-ZIF 因其高吸附容量、选择性和磁性而在有效去除废水中的 CR 方面大有可为。

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

Environmental Research 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

12.60

自引率

8.40%

发文量

2480

审稿时长

4.7 months

期刊介绍： The Environmental Research journal presents a broad range of interdisciplinary research, focused on addressing worldwide environmental concerns and featuring innovative findings. Our publication strives to explore relevant anthropogenic issues across various environmental sectors, showcasing practical applications in real-life settings.