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

doi:10.1016/j.wasman.2023.09.015

IOCAS-IR

	Recycling of kerf loss silicon: An optimized method to realize effective elimination of various impurities
	Hu, Zhiqiang 1,2; Yuan, Fangyuan 1,2; Li, Jiayan 1,2; Tan, Yi 1,2; Liu, Yao 3; Li, Pengting 1,2
	2023-10-01
发表期刊	WASTE MANAGEMENT
ISSN	0956-053X
卷号	170 页码:230-239
通讯作者	Li, Pengting(ptli@dlut.edu.cn)
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.
关键词	Recycling Photovoltaic waste Kerf loss silicon Optimized segregation
DOI	10.1016/j.wasman.2023.09.015
收录类别	SCI
语种	英语
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研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001076972600001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	DIAMOND-WIRE SAW ; POWDER WASTE ; ACID
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/181716
专题	中国科学院海洋研究所
通讯作者	Li, Pengting
作者单位	1.Dalian Univ Technol, Sch Mat Sci & Engn, 2 Linggong Rd, Dalian 116024, Peoples R China 2.Key Lab Energy Beam Met & Adv Mat Preparat Liaonin, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, 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.

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