Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules

doi:10.1007/s11837-020-04193-6

	Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules
	Yan, Yang 2; Wang, Zhi 1,3; Wang, Dong 1,3; Cao, Janwei 1,3; Ma, Wenhui 2; Wei, Kuixian 2; Yun, Lei 2
刊名	JOM
	2020-05-11
页码	9
ISSN号	1047-4838
DOI	10.1007/s11837-020-04193-6
英文摘要	With the rapid increase of photovoltaic (PV) system production and installation, the recycling of end-of-life PV modules has become an important issue. In this paper, the recovery of Si by separating the layers of end-of-life PV modules using KOH-ethanol solution was investigated. Compared with traditional swelling or dissolving reagents (such as benzene and trichloroethylene), KOH-ethanol is a green reagent with low environmental toxicity. The experiments explored the effect of different alkalis, module sizes, temperatures, KOH concentrations, and solid-to-liquid ratios on the separation ratio of the PV modules. The mechanism for separating these layers was also studied. Under optimal conditions, the layers of these PV modules can be completely separated in 3 h, and oxidation of the recovered Si wafer can be controlled. Hence, this method of recycling PV modules is of great significance for environmental protection and resource utilization.
资助项目	Natural Science Foundation of China[51934006] ; Natural Science Foundation of China[U1702251] ; Major Science and Technology Projects in Yunnan Province[2019ZE007]
WOS关键词	CRYSTALLINE
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000531771000005
资助机构	Natural Science Foundation of China ; Major Science and Technology Projects in Yunnan Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/40505]
专题	中国科学院过程工程研究所
通讯作者	Wang, Zhi
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Natl Engn Lab Vacuum Met, Kunming 650093, Yunnan, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Yan, Yang,Wang, Zhi,Wang, Dong,et al. Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules[J]. JOM,2020:9.
APA	Yan, Yang.,Wang, Zhi.,Wang, Dong.,Cao, Janwei.,Ma, Wenhui.,...&Yun, Lei.(2020).Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules.JOM,9.
MLA	Yan, Yang,et al."Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules".JOM (2020):9.