Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities

doi:10.1016/j.wasman.2023.09.015

CORC > 海洋研究所 > 中国科学院海洋研究所

	Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities
	Hu, Zhiqiang 2,3; Yuan, Fangyuan 2,3; Li, Jiayan 2,3; Tan, Yi 2,3; Liu, Yao 1; Li, Pengting 2,3
刊名	WASTE MANAGEMENT
	2023-10-01
卷号	170 页码:230-239
关键词	Recycling Photovoltaic waste Kerf loss silicon Optimized segregation
ISSN号	0956-053X
DOI	10.1016/j.wasman.2023.09.015
通讯作者	Li, Pengting(ptli@dlut.edu.cn)
英文摘要	Photovoltaic solid waste, particularly diamond-wire sawing silicon powder (DWSSP), has emerged as a significant concern in the industry. Consequently, the recycling and reuse of such waste have become a prominent research focus. In this study, focusing on achieving direct recycling and reuse of DWSSP, the key driving factors for effective purification were identified. It was found that simply increasing the melting temperature and time was insufficient to completely remove volatile impurities, and the migration process in the melt had to be taken into consideration. Additionally, this study focused on analyzing the instability model of inter-granular grain growth and its impact on the stable migration of impurities, with particular attention to the microstructure of inter-granular micro-regions. The thermal control directional solidification technique focused on controlling the temperature gradient during the melt solidification process. This approach helped stabilize the microstructure, enhance impurity migration, and ultimately led to a more effective purification of DWSSP.
资助项目	National Natural Science Foundation of China[51974057] ; Science and Technology Innovation Fund of Dalian[2019RT13] ; Guided local science and technology development projects from the central government[2021FRD05006]
WOS关键词	DIAMOND-WIRE SAW ; POWDER WASTE ; ACID
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:001076972600001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/181715]
专题	中国科学院海洋研究所
通讯作者	Li, Pengting
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Key Lab Energy Beam Met & Adv Mat Preparat Liaonin, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Sch Mat Sci & Engn, 2 Linggong Rd, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Hu, Zhiqiang,Yuan, Fangyuan,Li, Jiayan,et al. Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities[J]. WASTE MANAGEMENT,2023,170:230-239.
APA	Hu, Zhiqiang,Yuan, Fangyuan,Li, Jiayan,Tan, Yi,Liu, Yao,&Li, Pengting.(2023).Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities.WASTE MANAGEMENT,170,230-239.
MLA	Hu, Zhiqiang,et al."Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities".WASTE MANAGEMENT 170(2023):230-239.