氨基功能化杯芳烃对铂（IV）的高效吸附机理研究

IF 8 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment Pub Date : 2025-06-21 DOI:10.1016/j.scitotenv.2025.179909

Tao Ge , Quan Shi , Liang Xu , Yifan Yang , Mengyang Li , Cheng Yang , Yongpan Tian , Zhuo Zhao

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引用次数: 0

摘要

高效的铂提取对依赖铂的工业的可持续发展至关重要。本研究介绍了一种选择性吸附铂的新方法。设计合成了氨基功能化杯[4]芳烃，5,11,17,23-四叔丁基-25,27-二[2-（二乙胺）乙氧基]-26,28-二羟基杯[4]芳烃（BDAC），首次将其作为吸附剂直接应用于铂吸附过程。BDAC对铂的吸附性能优异，最大吸附量为232.02 mg·g−1。BDAC对铂也表现出了显著的选择性，在复杂体系中可捕获97%以上的铂，而对竞争离子的吸附率保持在5%以下。在多次吸附-脱附循环后，BDAC仍能保持较高的铂吸附效率。通过SEM-EDS， FT-IR，拉曼光谱，XPS和DFT计算分析了吸附机理。这项工作不仅提出了一种有效的铂回收方法，而且为基于超分子化学的新技术的发展奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A mechanistic study of the efficient adsorption for platinum(IV) by amino-functionalized calix[4]arene

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A mechanistic study of the efficient adsorption for platinum(IV) by amino-functionalized calix[4]arene

Efficient platinum extraction is essential for the sustainable advancement of industries reliant on platinum. This study introduces a novel approach for the selective adsorption of platinum. The amino-functionalized calix[4]arene, 5,11,17,23-tetra-tert-butyl-25,27-bis[2-(diethylamino)ethoxy]-26,28-dihydroxycalix[4]arene (BDAC), was designed and synthesized, which was first directly used as the absorbent in the platinum adsorption process. BDAC demonstrated outstanding platinum adsorption capability, achieving a maximum adsorption capacity of 232.02 mg·g⁻¹. BDAC also exhibited remarkable selectivity for platinum, capturing over 97 % of platinum in complex systems, while the adsorption of competing ions remained below 5 %. Furthermore, BDAC maintained high platinum adsorption efficiency after multiple adsorption-desorption cycles. The adsorption mechanism was elucidated through SEM-EDS, FT-IR, Raman spectroscopy, XPS, and DFT calculations. This work not only proposes an efficient method for platinum recovery but also lays the groundwork for the development of novel technologies based on supramolecular chemistry.

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来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.