Adsorption Desulfurization Performance of Groups of Halloysite Nanotubes

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Abstract

The surface modification of natural Halloysite nanotubes by grafting with γ-aminopropyltriethoxysilane (APTES) was firstly got. So we modified the functional groups of Halloysite nanotubes (HNT) from hydroxyl groups (HNT-OH) to amino groups (HNT-NH₂) and to carboxylic acids (HNT-COOH), which was found to have perfect performance on adsorption desulfurization, and the materials were characterized by SEM, FTIR, XRD and BET. The desulfurization rate of HNT-NH₂ was 72.06%, which was 19.47% bigger than natural Halloysite nanotubes. But the rate of HNT-COOH was only 8.42% bigger than that of natural Halloysite nanotubes. The bigger the pore volume of the modified materials was, the bigger the desulfurization rate of functional materials was.

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	Articles by authors
	Ma Zhi
	Liu Huanhuan
	Zhu Weijia
	Ding Tong
	Qi Xiaozhou

Keywords： Halloysite nanotubes； organic modification； adsorption desulfurization

Received 2015-03-30;

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Cite this article:

Ma Zhi, Liu Huanhuan, Zhu Weijia, Ding Tong, Qi Xiaozhou.Adsorption Desulfurization Performance of Groups of Halloysite Nanotubes[J] Chemcial Industry and Engineering, 2017,V34(2): 35-38,61

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