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Lead Stabilization and Iodine Recycling of Lead Halide Perovskite Solar Cells
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-11-23 , DOI: 10.1021/acssuschemeng.1c07083 Meng Ren 1 , Yanfeng Miao 1 , Taiyang Zhang 1 , Zhixiao Qin 1 , Yuetian Chen 1 , Ning Wei 1 , Xufang Qian 1 , Tianfu Wang 1 , Yixin Zhao 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-11-23 , DOI: 10.1021/acssuschemeng.1c07083 Meng Ren 1 , Yanfeng Miao 1 , Taiyang Zhang 1 , Zhixiao Qin 1 , Yuetian Chen 1 , Ning Wei 1 , Xufang Qian 1 , Tianfu Wang 1 , Yixin Zhao 1
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Lead halide perovskite solar cells (PSCs) have achieved great progress and become one of the most promising candidates for next-generation low-cost and high-efficiency photovoltaics (PVs). There are still many challenges toward successful commercialization, while the use of toxic lead and a potentially large amount of other related raw materials is one of the main challenges for large-scale applications. Recycling chemical components in PSCs is a great way for resource saving and recovery; however, currently, there are few reports on the recycling of valuable and scarce iodine. Here, we reported a novel approach for both lead stabilization and iodide recovery by using cost-effective and nontoxic commercial zeolite in an aqueous solution. We also demonstrated a cost-effective procedure for recycling iodine in PSCs. The lead ions were adsorbed by zeolite through ion exchange, while the valuable iodide ions were recycled. High stabilization efficiency of the lead element was achieved approaching 100%, and the recovery efficiency of iodide in solution reached >95%. Finally, the PSC devices based on recycled PbI2 showed comparable PV performances with those of devices based on expensive and commercial-available high-purity PbI2.
中文翻译：
卤化铅钙钛矿太阳能电池的铅稳定性和碘回收
卤化铅钙钛矿太阳能电池（PSCs）取得了长足的进步，成为下一代低成本、高效光伏（PVs）最有希望的候选者之一。成功商业化仍面临许多挑战，而有毒铅和潜在大量其他相关原材料的使用是大规模应用的主要挑战之一。回收 PSC 中的化学成分是节约和回收资源的好方法；然而，目前关于回收有价值和稀缺的碘的报道很少。在这里，我们报告了一种通过在水溶液中使用具有成本效益且无毒的商业沸石来稳定铅和回收碘化物的新方法。我们还展示了在 PSC 中回收碘的具有成本效益的程序。铅离子通过离子交换被沸石吸附，而有价值的碘离子则被回收利用。铅元素的高稳定效率接近100%，溶液中碘化物的回收率达到>95%。最后，基于回收 PbI 的 PSC 器件图 2显示了与基于昂贵且市售的高纯度 PbI 2的器件具有可比性的 PV 性能。
更新日期：2021-12-06
中文翻译：
卤化铅钙钛矿太阳能电池的铅稳定性和碘回收
卤化铅钙钛矿太阳能电池（PSCs）取得了长足的进步，成为下一代低成本、高效光伏（PVs）最有希望的候选者之一。成功商业化仍面临许多挑战，而有毒铅和潜在大量其他相关原材料的使用是大规模应用的主要挑战之一。回收 PSC 中的化学成分是节约和回收资源的好方法；然而，目前关于回收有价值和稀缺的碘的报道很少。在这里，我们报告了一种通过在水溶液中使用具有成本效益且无毒的商业沸石来稳定铅和回收碘化物的新方法。我们还展示了在 PSC 中回收碘的具有成本效益的程序。铅离子通过离子交换被沸石吸附，而有价值的碘离子则被回收利用。铅元素的高稳定效率接近100%，溶液中碘化物的回收率达到>95%。最后，基于回收 PbI 的 PSC 器件图 2显示了与基于昂贵且市售的高纯度 PbI 2的器件具有可比性的 PV 性能。
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