Self-Assembled Fe^III-TAML-Based Magnetic Nanostructures for Rapid and Sustainable Destruction of Bisphenol A.

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-01-28 DOI:10.1007/s00128-023-03834-1

Ruochen Dong, Lihua Bai, Sijia Liang, Shuxia Xu, Song Gao, Hongjian Li, Ran Hong, Chao Wang, Cheng Gu

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Abstract

This study focused on constructing iron(III)-tetraamidomacrocyclic ligand (Fe^III-TAML)-based magnetic nanostructures via a surfactant-assisted self-assembly (SAS) method to enhance the reactivity and recoverability of Fe^III-TAML activators, which have been widely employed to degrade various organic contaminants. We have fabricated Fe^III-TAML-based magnetic nanomaterials (Fe^III-TAML/CTAB@Fe₃O₄, CTAB refers to cetyltrimethylammonium bromide) by adding a mixed solution of Fe^III-TAML and NH₃·H₂O into another mixture containing CTAB, FeCl₂ and FeCl₃ solutions. The as-prepared Fe^III-TAML/CTAB@Fe₃O₄ nanocomposite showed relative reactivity compared with free Fe^III-TAML as indicated by decomposition of bisphenol A (BPA). Moreover, our results demonstrated that the Fe^III-TAML/CTAB@Fe₃O₄ composite can be separated directly from reaction solutions by magnet adsorption and reused for at least four times. Therefore, the efficiency and recyclability of self-assembled Fe^III-TAML/CTAB@Fe₃O₄ nanostructures will enable the application of Fe^III-TAML-based materials with a lowered expense for environmental implication.

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基于 FeIII-TAML 的自组装磁性纳米结构用于快速、可持续地销毁双酚 A。

本研究的重点是通过表面活性剂辅助自组装（SAS）方法构建基于铁(III)-四脒基环配体（FeIII-TAML）的磁性纳米结构，以提高FeIII-TAML活化剂的反应活性和可回收性，该活化剂已被广泛用于降解各种有机污染物。我们将 FeIII-TAML 和 NH3-H2O 的混合溶液加入另一种含有 CTAB、FeCl2 和 FeCl3 溶液的混合物中，制备了基于 FeIII-TAML 的磁性纳米材料（FeIII-TAML/CTAB@Fe3O4，CTAB 指十六烷基三甲基溴化铵）。与游离的 FeIII-TAML 相比，制备的 FeIII-TAML/CTAB@Fe3O4 纳米复合材料表现出相对的反应活性，双酚 A（BPA）的分解就说明了这一点。此外，我们的研究结果表明，FeIII-TAML/CTAB@Fe3O4 复合材料可通过磁铁吸附直接从反应溶液中分离出来，并可重复使用至少四次。因此，自组装 FeIII-TAML/CTAB@Fe3O4 纳米结构的高效性和可回收性将使以 FeIII-TAML 为基础的材料得到应用，同时降低了对环境的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.