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The influence of dissolved Si on Ni precipitate formation at the kaolinite water interface: Kinetics, DRS and EXAFS analysis

文献类型：期刊论文

作者Tan, Xiaoli1; Liu, Ge1,2; Mei, Buiyang1,2; Fang, Ming3; Ren, Xuemei1; Chen, Changlun1,4
刊名CHEMOSPHERE
出版日期2017-04-01
卷号173期号:无页码:135-142
关键词Ni Precipitate Kaolinite Si Exafs Drs
DOI10.1016/j.chemosphere.2017.01.061
文献子类Article
英文摘要Unraveling the formation process of Ni precipitates at molecular scale is important for understanding the fate and mobility of Ni species in the real environment. Dissolved Si presents in the natural environment ubiquitously, which can alter Ni sorption as well as incorporation into neoformed precipitates. Batch experiments show that the dissolved Si leads to a rapid increase in the Ni sorption rate and interferes with the formation of Ni precipitates. The results of diffuse reflectance spectroscopy (DRS) and extended X-ray absorption fine structure (EXAFS) spectroscopy analyses suggest that the nucleation of a (Ni,Al) phyllosilicate phase involves a kaolinite-like local structure. Then, the substantial presence of Si affects the initial formation of Ni precipitate nucleation and the resulting crystal growth. Dioctahedral kaolinite may act as a nucleating surface for the heterogeneous formation of trioctahedral (Ni,Al) phyllosilicates under environmentally relevant conditions. This study provides experimental evidence on nucleation and epitaxial growth processes of Ni precipitate on kaolinite and provides insight on the relationship between substrates and precipitation, which is crucial for understanding the physicochemical behavior of Ni on mineral surfaces. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词LAYERED DOUBLE HYDROXIDE ; RAY-ABSORPTION SPECTROSCOPY ; ZN PHYLLOSILICATE ; EPITAXIAL-GROWTH ; FINE-STRUCTURE ; NA-RECTORITE ; HUMIC-ACID ; SORPTION ; MONTMORILLONITE ; BATCH
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000395213700015
资助机构National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; National Natural Science Foundation of China(21377132 ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; Chinese National Fusion Project for ITER(2013GB110004) ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; U1607102 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 21307135 ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202) ; 91326202)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31804]  
专题合肥物质科学研究院_中科院固体物理研究所
作者单位1.Chinese Acad Sci, Inst Plasma Phys, POB 1126, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Inst Solid States Phys, POB 1129, Hefei 230031, Anhui, Peoples R China
4.King Abdulaziz Univ, Fac Sci, NAAM Res Grp, Jeddah 21589, Saudi Arabia
推荐引用方式
GB/T 7714		 Tan, Xiaoli,Liu, Ge,Mei, Buiyang,et al. The influence of dissolved Si on Ni precipitate formation at the kaolinite water interface: Kinetics, DRS and EXAFS analysis[J]. CHEMOSPHERE,2017,173(无):135-142.
APA Tan, Xiaoli,Liu, Ge,Mei, Buiyang,Fang, Ming,Ren, Xuemei,&Chen, Changlun.(2017).The influence of dissolved Si on Ni precipitate formation at the kaolinite water interface: Kinetics, DRS and EXAFS analysis.CHEMOSPHERE,173(无),135-142.
MLA Tan, Xiaoli,et al."The influence of dissolved Si on Ni precipitate formation at the kaolinite water interface: Kinetics, DRS and EXAFS analysis".CHEMOSPHERE 173.无(2017):135-142.

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来源：合肥物质科学研究院

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