Recent progress in silver (Ag) adsorption technologies: mechanisms, challenges, and opportunities: a review

IF 2.5 4区化学 Q2 Engineering

Chemical Papers Pub Date : 2025-07-28 DOI:10.1007/s11696-025-04194-2

A. Hashem, S. Farag

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Abstract

The adsorption of silver (Ag) from aqueous solutions is a critical research area due to its environmental, industrial, and economic significance. Silver, a valuable metal widely used in various industries, poses ecological and health risks when released into wastewater. Adsorption is an effective, cost-efficient method for silver removal, offering high efficiency and operational simplicity. Recent advancements have led to the development of advanced adsorbents with enhanced capacity and selectivity for silver ions. This review examines the mechanisms of silver adsorption, including electrostatic interactions, ion exchange, surface complexation, and redox reactions, and evaluates adsorbent performance through isotherms, kinetics, and thermodynamics. Key factors influencing adsorption, such as pH and competing ions, are analyzed, alongside emerging trends like sustainable adsorbents and hybrid technologies. Challenges, including adsorbent regeneration and scalability, are discussed, as are opportunities for resource recovery and circular economy approaches. This review aims to guide the development of efficient, sustainable silver adsorption technologies for environmental remediation and industrial applications.

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银（Ag）吸附技术的最新进展：机制、挑战和机遇综述

从水溶液中吸附银（Ag）具有重要的环境、工业和经济意义，是一个重要的研究领域。银是一种广泛应用于各行各业的贵重金属，排放到废水中会造成生态和健康风险。吸附法是一种高效、经济的除银方法，具有效率高、操作简单等优点。最近的进展导致了对银离子的能力和选择性增强的高级吸附剂的发展。本文综述了银的吸附机理，包括静电相互作用、离子交换、表面络合和氧化还原反应，并通过等温线、动力学和热力学来评价吸附剂的性能。分析了影响吸附的关键因素，如pH值和竞争离子，以及可持续吸附剂和混合技术等新兴趋势。讨论了包括吸附剂再生和可扩展性在内的挑战，以及资源回收和循环经济方法的机会。本文综述旨在指导高效、可持续的银吸附技术的发展，用于环境修复和工业应用。

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

Chemical Papers Chemical Engineering-General Chemical Engineering

CiteScore

3.30

自引率

4.50%

发文量

590

期刊介绍： Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.