使用装饰在氧化石墨烯和碳纳米管上的铜基配位聚合物高效捕获碘并选择性吸附和去除阳离子染料

IF 6.3 2区 工程技术 Q1 ENGINEERING, CHEMICAL Journal of water process engineering Pub Date : 2024-11-23 DOI:10.1016/j.jwpe.2024.106569
Khalil M.A. Qasem , Mohammad Yasir Khan , Shaikh Arfa Akmal , Hatem A.M. Saleh , Mohd Mehtab , M. Shahid , Mansour A.S. Salem , Mohammad Mujahid Ali Khan , Younes S.A. Ghanem , Abdul Malik , Abdul Moheman
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引用次数: 0

摘要

本研究的重点是通过一步溶热法合成杂化纳米复合材料(HNCs),将高结晶和均匀分散的铜基配位聚合物(Cu-CP)、氧化石墨烯(GO)和碳纳米管(CNTs)结合在一起。利用元素分析、扫描电子显微镜(SEM)、电子显微镜(TEM)、乙二胺四乙酸(EDX)、X 射线衍射(XRD)、傅立叶变换红外光谱(FT-IR)、拉曼光谱、热重分析(TGA)和晶体学研究对纳米复合材料进行了广泛的表征,证实了其性能,其中 PXRD 研究支持其清晰的晶体结构。形态学和元素研究表明,含铜苯甲酸的 Cu-CP 能有效吸附在 GO 和 CNT 基底上。合成的纳米复合材料对放射性污染物碘(I2)的吸附能力极强,这归因于其 CP 尺寸减小和表面积增大。对 I2 的强大亲和力来自各种相互作用,包括共轭 π 电子芳香系统和卤素键。Cu-CP、Cu-CP@GO 和 Cu-CP@CNT 吸附剂能从正己烷溶液中有效地萃取出有毒的碘,24 小时内的捕获量高达 347.85 mg/g。此外,Cu-CP、Cu-CP@GO 和 Cu-CP@CNT 在环境保护中的应用展示了它们在去除阳离子和阴离子染料方面的功效,尤其是通过阳离子-π 和 π-π 相互作用,突出了显著的阳离子染料选择性。这项研究强调了这些 HNCs 在应对环境挑战和污染物修复方面的巨大潜力。
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Highly efficient iodine capture and selective adsorption and removal of cationic dyes by using a copper-based coordination polymer decorated over graphene oxide and carbon nanotubes
This study focuses on synthesizing hybrid nanocomposites (HNCs) through a one-step solvothermal method, combining highly crystalline and evenly dispersed copper-based coordination polymer (Cu-CP), graphene oxide (GO), and carbon nanotubes (CNTs). Extensive characterization using elemental analysis, SEM, TEM, EDX, XRD, FT-IR, Raman spectroscopy, TGA, and crystallographic studies confirm the properties of the nanocomposites, with PXRD investigation supporting their clear crystalline structure. Morphological and elemental studies reveal effective adsorption of copper-benzoic acid-containing Cu-CP onto GO and CNT substrates. The synthesized nanocomposites exhibit superior adsorption capacity for iodine (I2), a model radioactive pollutant, attributed to decreased CP size and larger surface area. The strong affinity for I2 arises from various interactions, including conjugated π-electron aromatic systems and halogen bonds. Cu-CP, Cu-CP@GO, and Cu-CP@CNT adsorbents efficiently extract toxic iodine from hexane solution, achieving a substantial capture capacity of 347.85 mg/g over 24 h. In the vapor phase, Cu-CP@GO exhibits an even higher capacity (951.52 mg/g within 25 h). Moreover, the application of Cu-CP, Cu-CP@GO, and Cu-CP@CNT in environmental protection showcases their efficacy in removing cationic and anionic dyes, particularly highlighting remarkable cationic dye selectivity through cation-π and π-π interactions. This research underscores the promising potential of these HNCs in addressing environmental challenges and pollutant remediation.
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来源期刊
Journal of water process engineering
Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology
CiteScore
10.70
自引率
8.60%
发文量
846
审稿时长
24 days
期刊介绍: The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
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