超声波-搅拌强化绿色CuCl2-ChCl溶剂体系浸出和回收退役光伏电池中的银

IF 6.3 2区材料科学 Q2 ENERGY & FUELS

Solar Energy Materials and Solar Cells Pub Date : 2025-09-20 DOI:10.1016/j.solmat.2025.113975

Qunzhi Wang , Jijun Wu , Wenhui Ma , Zhengjie Chen , Fengshuo Xi

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引用次数: 0

摘要

随着退役光伏组件数量的不断增加，其高效回收已成为一个重要的研究热点。在这项研究中，开发了一种绿色的CuCl2-ChCl溶剂体系，用于回收退役光伏组件中的银（Ag）。超声强化结合机械搅拌，银浸出率高达98.81%。动力学分析表明，溶剂体系中银浸出过程受化学反应机理控制，表观活化能为42.19 kJ/mol。建立了实验模型，并利用响应面法进行了优化，确定了最佳工艺参数。通过扫描电镜和x射线能谱分析了浸出前后样品的形态和元素分布。以HCl和NaCl为氯源生成AgCl，再经抗坏血酸还原为金属银。还原法制备银粉，回收率为98.57%。本研究为从退役光伏组件中回收银提供了一种可持续和有效的方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Ultrasonic-stirring-enhanced leaching and recovery of silver from retired photovoltaic cells using a green CuCl2-ChCl solvent system

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Ultrasonic-stirring-enhanced leaching and recovery of silver from retired photovoltaic cells using a green CuCl2-ChCl solvent system

With the increasing number of retired photovoltaic (PV) modules, their efficient recycling has emerged as a vital research focus. In this study, a green CuCl₂-ChCl solvent system was developed to recover silver (Ag) from retired photovoltaic modules. Ultrasonic intensification combined with mechanical stirring resulted in a high Ag leaching rate of 98.81 %. Kinetic analysis revealed that the Ag leaching process in the solvent system was controlled by a chemical reaction mechanism, with an apparent activation energy of 42.19 kJ/mol. An experimental model was established and optimized using response surface methodology to determine the optimal process parameters. The morphology and elemental distribution of samples before and after leaching were analyzed via scanning electron microscopy and energy-dispersive X-ray spectroscopy. AgCl was formed using HCl and NaCl as chlorine sources and then reduced to metallic Ag by ascorbic acid. The reduction process yielded Ag powder with a recovery rate of 98.57 %. This study provides a sustainable and efficient approach for recycling Ag from retired PV modules.

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来源期刊

Solar Energy Materials and Solar Cells 工程技术-材料科学：综合

CiteScore

12.60

自引率

11.60%

发文量

513

审稿时长

47 days

期刊介绍： Solar Energy Materials & Solar Cells is intended as a vehicle for the dissemination of research results on materials science and technology related to photovoltaic, photothermal and photoelectrochemical solar energy conversion. Materials science is taken in the broadest possible sense and encompasses physics, chemistry, optics, materials fabrication and analysis for all types of materials.