Effects of inorganic sulfates on the microstructure and properties of ion-exchange treated palygorskite clay

doi:10.1016/j.colsurfa.2012.04.037

	Effects of inorganic sulfates on the microstructure and properties of ion-exchange treated palygorskite clay
Department	环境材料与生态化学研究发展中心
	Xu JX(徐继香)1,2; Wang WB(王文波)1 ; Mu B(牟斌)1 ; Wang AQ(王爱勤)1 ; Wang AQ(王爱勤)
	2012
Source Publication	Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN	0927-7757
Volume	405 Pages:59-64
Abstract	Palygorskite was modified with inorganic sulfates, including Na₂SO₄, ZnSO₄, Al₂(SO₄)₃, and Zr(SO₄)₂, using the high-pressure homogenization technology. The effects of type and concentration of sulfates on the morphology, micro-structure, surface potential, shear modulus and viscosity of palygorskite were investigated by scanning electron microscopy (SEM), nitrogen adsorption–desorption isotherms (BET), zeta potential and rheological measurements, respectively. The modification of palygorskite with ZnSO₄ increased its specific surface area and micropore volume, but the largest pore size was obtained for the palygorskite modified with Al₂(SO₄)₃. Zeta potential results suggested that the multivalent Al³⁺ and Zr⁴⁺ ions were more efficient in reducing the negative charge of palygorskite. The colloidal properties of the suspension were dependent on the type and concentration of sulfates, and the introduction of ZnSO₄ simultaneously enhanced the dispersibility and colloidal properties of palygorskite.
Keyword	Palygorskite Inorganic Sulfate Microstructure Zeta Potential Rheology
Subject Area	环境材料与生态化学
DOI	10.1016/j.colsurfa.2012.04.037
Funding Organization	the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (No. BY2010012);Jiangsu Provincial Joint Innovation and Research Funding of Enterprises, Colleges and Institutes-Prospective Cooperative Research Project (No. BY2011194)
Indexed By	SCI
If	2.108
Language	英语
Funding Project	功能复合材料组
compositor	第一作者单位
Citation statistics	Cited Times:17[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.licp.cn/handle/362003/2543
Collection	环境材料与生态化学研究发展中心
Corresponding Author	Wang AQ(王爱勤)
Affiliation	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, R&D Ctr Xuyi Attapulgite Appl Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation GB/T 7714	Xu JX,Wang WB,Mu B,et al. Effects of inorganic sulfates on the microstructure and properties of ion-exchange treated palygorskite clay[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects,2012,405:59-64.
APA	Xu JX,Wang WB,Mu B,Wang AQ,&王爱勤.(2012).Effects of inorganic sulfates on the microstructure and properties of ion-exchange treated palygorskite clay.Colloids and Surfaces A: Physicochemical and Engineering Aspects,405,59-64.
MLA	Xu JX,et al."Effects of inorganic sulfates on the microstructure and properties of ion-exchange treated palygorskite clay".Colloids and Surfaces A: Physicochemical and Engineering Aspects 405(2012):59-64.

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