Nano-fibriform production of silica from natural chrysotile

doi:10.1016/j.jcis.2005.08.055

CORC > 北京大学 > 地球与空间科学学院

	Nano-fibriform production of silica from natural chrysotile
	Wang, LJ ; Lu, AH ; Wang, CQ ; Zheng, XS ; Zhao, DJ ; Liu, R
刊名	胶体与界面科学杂志
	2006
关键词	silica nano-fibriform magnesium leaching degree chrysotile RICE HULL ASH SURFACE
DOI	10.1016/j.jcis.2005.08.055
英文摘要	Nano-fibriforin silica was extracted from chrysotile by the acid-leaching method. The acid-leached residue of chrysotile has been studied by TEM, XRD, FTAR, and thermal analysis techniques, etc. When the magnesium leaching degree (MLD) is over 90%, the nano-fibriform silica consists of hydrous silicon dioxide (above 90%) with small amount of magnesium trapped inside the Si-O network. The amount of hydroxyl on surface of nano-fibriform silica is 6 unit nm(-2). This value is between the values of turned and precipitated silica. This study shows that nanofibriform silica is a kind of amorphous matter with a high special surface area (368 m(2)/g), a high adsorption (330 cm(3)/g), and a larger pore volume (0.51 cm(3)/g). The diameter of a single silica fiber is 20-30 rim. The nitrogen adsorption isotherm is similar to Type TV curve. The nano-fibriform silica is one of mesopores materials. (c) 2005 Elsevier Inc. All rights reserved.; Chemistry, Physical; SCI(E); EI; PubMed; 38; ARTICLE; 2; 436-439; 295
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/199075]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang, LJ,Lu, AH,Wang, CQ,et al. Nano-fibriform production of silica from natural chrysotile[J]. 胶体与界面科学杂志,2006.
APA	Wang, LJ,Lu, AH,Wang, CQ,Zheng, XS,Zhao, DJ,&Liu, R.(2006).Nano-fibriform production of silica from natural chrysotile.胶体与界面科学杂志.
MLA	Wang, LJ,et al."Nano-fibriform production of silica from natural chrysotile".胶体与界面科学杂志 (2006).