Silylation of Al-13-intercalated montmorillonite with trimethylchlorosilane and their adsorption for Orange II

	Silylation of Al-13-intercalated montmorillonite with trimethylchlorosilane and their adsorption for Orange II
	Zonghua Qin; Peng Yuan; Shuqin Yang; Dong Liu; Hongping He; Jianxi Zhu
	2014
发表期刊	Applied Clay Science
卷号	99 期号:1 页码:229-236
摘要	The grafting reactions between trimethylchlorosilane (TMCS) and Al-13-intercalated montmorillonite were investigated using X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, and nitrogen adsorption-desorption isotherms. The influence of solvent on the grafting process is discussed. The grafting amount of TMCS was roughly controlled by choosing different solvents. The product prepared in anhydrous ethanol has a high specific surface area and a large pore volume but a low degree of grafting modification; by comparison, the product prepared in cyclohexane has a high loading amount of silane but a low surface area. These organic-inorganic montmorillonites have an excellent adsorption capability for the removal of the anion dye, Orange II. Orange II exists in the interlayer region, not only through the electrostatic interactions between the anionic sulfonic acid groups of Orange II and the interlayer Al polycations, but also through the hydrophobic interactions between Orange II molecules and grafted silane. With particular emphasis on the absorbents prepared in cyclohexane, the removal rate of Orange II remains at 98.7% when the initial concentration is 1000 mg l(-1). A continuous organic phase is formed in the interlayer space of the products prepared in cyclohexane. The removal of Orange II with this adsorbent is based on both the adsorption on the interface and the partition between the water and the interlayer organic phases.
学科领域	矿床地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/5274
专题	矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文
推荐引用方式 GB/T 7714	Zonghua Qin,Peng Yuan,Shuqin Yang,et al. Silylation of Al-13-intercalated montmorillonite with trimethylchlorosilane and their adsorption for Orange II[J]. Applied Clay Science,2014,99(1):229-236.
APA	Zonghua Qin,Peng Yuan,Shuqin Yang,Dong Liu,Hongping He,&Jianxi Zhu.(2014).Silylation of Al-13-intercalated montmorillonite with trimethylchlorosilane and their adsorption for Orange II.Applied Clay Science,99(1),229-236.
MLA	Zonghua Qin,et al."Silylation of Al-13-intercalated montmorillonite with trimethylchlorosilane and their adsorption for Orange II".Applied Clay Science 99.1(2014):229-236.

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