钙钛矿太阳能电池生产中废弃有机溶剂中碘化铅前体的闭环回收：走向可持续光伏

IF 7.1 2区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Waste management Pub Date : 2025-08-05 DOI:10.1016/j.wasman.2025.115049

Qingfang Zou , Zifan Lin , Zhaoyang Li , Guang Hu , Shifa Zhou , Ying Zheng , Liang Huang , Sha Liang , Huabo Duan , Shushan Yuan , Chao Chen , Ling Xu , Yin Yang , Jiakuan Yang

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引用次数: 0

摘要

钙钛矿太阳能电池（PSCs）具有高效率的特点，在太阳能收集方面显示出巨大的潜力。然而，psc生产过程通常会产生大量含有极性有机溶剂的废物，即N，N-二甲基甲酰胺（DMF）和二甲基亚砜（DMSO），这些溶剂被高浓度铅污染（Ⅱ）。本研究介绍了一种闭环回收方法，使用阳离子交换树脂从废弃有机溶剂中分离和回收铅（Ⅱ），从而实现铅在psc制造中的再利用。该树脂可有效吸附和解吸溶剂中的Pb（Ⅱ），回收率超过97%，并具有良好的可重复使用性。分离后的铅溶液进一步转化为高纯度的碘化铅（PbI2）前驱体（99.99%）。使用回收的PbI2前驱体制备的PSCs具有与商用PbI2前驱体（18.39%,17.27 mA/cm2）相当的功率转换效率（17.72%）和电流密度（17.59 mA/cm2）。本研究提出了一种从PSC生产废溶剂中高效分离和回收铅的环保方法，促进PSC行业的可持续发展。

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Closed-loop recycling of lead iodide precursor from waste organic solvents in the production of perovskite solar cells: Toward sustainable photovoltaics

Perovskite solar cells (PSCs), characterized by high efficiency, have demonstrated significant potential in solar energy harvesting. However, the PSCs production process usually generates substantial waste containing polar organic solvents, i.e., N,N-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO), which are contaminated with high-concentration Pb(Ⅱ). This study introduces a closed-loop recycling approach to separate and recover Pb(Ⅱ) from waste organic solvents using a cation-exchange resin, enabling lead reuse in PSCs manufacturing. The resin efficiently adsorbs and desorbs Pb(Ⅱ) from the solvents, achieving a recovery efficiency of over 97 % and demonstrating excellent reusability. The separated lead solution is further converted into high-purity lead iodide (PbI₂) precursor (99.99 %). PSCs fabricated with the recovered PbI₂ precursor exhibit a power conversion efficiency (17.72 %) and current density (17.59 mA/cm²), comparable to devices made with commercial PbI₂ precursor (18.39 %, 17.27 mA/cm²). This work presents an environmentally-friendly method for efficient lead separation and recovery from PSCs production waste solvents, promoting the sustainable development of the PSC industry.

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来源期刊

Waste management 环境科学-工程：环境

CiteScore

15.60

自引率

6.20%

发文量

492

审稿时长

39 days

期刊介绍： Waste Management is devoted to the presentation and discussion of information on solid wastes,it covers the entire lifecycle of solid. wastes. Scope: Addresses solid wastes in both industrialized and economically developing countries Covers various types of solid wastes, including: Municipal (e.g., residential, institutional, commercial, light industrial) Agricultural Special (e.g., C and D, healthcare, household hazardous wastes, sewage sludge)