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

CAS OpenIR

	Recovery of Silicon via Using KOH-Ethanol Solution by Separating Different Layers of End-of-Life PV Modules
	Yan, Yang 3; Wang, Zhi 1,2; Wang, Dong 1,2; Cao, Janwei 1,2; Ma, Wenhui 3; Wei, Kuixian 3; Yun, Lei 3
	2020-05-11
Source Publication	JOM
ISSN	1047-4838
Pages	9
Abstract	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.
DOI	10.1007/s11837-020-04193-6
Language	英语
WOS Keyword	CRYSTALLINE
Funding Project	Natural Science Foundation of China[51934006] ; Natural Science Foundation of China[U1702251] ; Major Science and Technology Projects in Yunnan Province[2019ZE007]
WOS Research Area	Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
WOS Subject	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
Funding Organization	Natural Science Foundation of China ; Major Science and Technology Projects in Yunnan Province
WOS ID	WOS:000531771000005
Publisher	SPRINGER
Citation statistics	Cited Times:2[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/40506
Collection	中国科学院过程工程研究所
Corresponding Author	Wang, Zhi
Affiliation	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.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 3.Kunming Univ Sci & Technol, Fac Met & Energy Engn, Natl Engn Lab Vacuum Met, Kunming 650093, Yunnan, Peoples R China
Recommended Citation 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.

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