Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids
Silicon tetrachloride (SiCl4) is the main byproducts of the polysilicon industries. The dissolution behaviors of SiCl4 in imidazolium ionic liquid, including [Bmim]OTf, [Bmim]NTf2, [Hmim]NTf2, and [Omim]NTf2, were investigated for recycling Si from SiCl4. Raman spectroscopy was used to understand th...
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doaj-81a8b6ac3f5b4d0f9462f87b2ab899542020-11-24T23:21:49ZengHindawi LimitedJournal of Spectroscopy2314-49202314-49392018-01-01201810.1155/2018/23291892329189Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic LiquidsCheng Cheng0Chenglong Zhang1Jiachao Jiang2En Ma3Jianfeng Bai4Jingwei Wang5WEEE Research Center of Shanghai Polytechnic University, Shanghai 201209, ChinaWEEE Research Center of Shanghai Polytechnic University, Shanghai 201209, ChinaSchool of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, ChinaWEEE Research Center of Shanghai Polytechnic University, Shanghai 201209, ChinaWEEE Research Center of Shanghai Polytechnic University, Shanghai 201209, ChinaWEEE Research Center of Shanghai Polytechnic University, Shanghai 201209, ChinaSilicon tetrachloride (SiCl4) is the main byproducts of the polysilicon industries. The dissolution behaviors of SiCl4 in imidazolium ionic liquid, including [Bmim]OTf, [Bmim]NTf2, [Hmim]NTf2, and [Omim]NTf2, were investigated for recycling Si from SiCl4. Raman spectroscopy was used to understand the combination between the ionic liquid and SiCl4, and the conductivity of ionic liquids in different conditions was determined. The results indicated that [Bmim]NTf2 exhibited a better SiCl4 dissolving capacity compared to [Bmim]OTf, longer alkyl chain lengths in the imidazolium cations of the ionic liquids exhibited a better performance in dissolving SiCl4, and [Bmim]NTf2 : PC = 1 : 2 exhibited the best conductivity. In addition, molecular bondings between C-Cl, Si-O-Si, and C-Si were formed between the ionic liquids and SiCl4.http://dx.doi.org/10.1155/2018/2329189 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cheng Cheng Chenglong Zhang Jiachao Jiang En Ma Jianfeng Bai Jingwei Wang |
spellingShingle |
Cheng Cheng Chenglong Zhang Jiachao Jiang En Ma Jianfeng Bai Jingwei Wang Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids Journal of Spectroscopy |
author_facet |
Cheng Cheng Chenglong Zhang Jiachao Jiang En Ma Jianfeng Bai Jingwei Wang |
author_sort |
Cheng Cheng |
title |
Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids |
title_short |
Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids |
title_full |
Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids |
title_fullStr |
Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids |
title_full_unstemmed |
Raman Spectroscopy Characterization of Dissolved Polysilicon Byproduct SiCl4 in Ionic Liquids |
title_sort |
raman spectroscopy characterization of dissolved polysilicon byproduct sicl4 in ionic liquids |
publisher |
Hindawi Limited |
series |
Journal of Spectroscopy |
issn |
2314-4920 2314-4939 |
publishDate |
2018-01-01 |
description |
Silicon tetrachloride (SiCl4) is the main byproducts of the polysilicon industries. The dissolution behaviors of SiCl4 in imidazolium ionic liquid, including [Bmim]OTf, [Bmim]NTf2, [Hmim]NTf2, and [Omim]NTf2, were investigated for recycling Si from SiCl4. Raman spectroscopy was used to understand the combination between the ionic liquid and SiCl4, and the conductivity of ionic liquids in different conditions was determined. The results indicated that [Bmim]NTf2 exhibited a better SiCl4 dissolving capacity compared to [Bmim]OTf, longer alkyl chain lengths in the imidazolium cations of the ionic liquids exhibited a better performance in dissolving SiCl4, and [Bmim]NTf2 : PC = 1 : 2 exhibited the best conductivity. In addition, molecular bondings between C-Cl, Si-O-Si, and C-Si were formed between the ionic liquids and SiCl4. |
url |
http://dx.doi.org/10.1155/2018/2329189 |
work_keys_str_mv |
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