埃洛石纳米管上基团种类吸附脱硫性能

摘要

通过有机后嫁接法对埃洛石纳米管进行系列氨基化与羧基化，研究改性剂表面基团与改性吸附剂孔容对油品中有机硫的脱除效果，并采用SEM、红外光谱、XRD与BET表征手段对改性材料进行分析表征。研究表明，表面基团与孔容对吸附脱硫具有一定影响：氨基化吸附剂脱硫率达到72.06%，较原吸附剂提高19.47%，羧基化吸附剂脱硫率仅提高8.42%；随着改性吸附剂孔容增大，脱硫率增大。

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	马智
	刘焕焕
	朱伟佳
	丁彤
	齐晓周

关键词：埃洛石纳米管；有机改性；吸附脱硫

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.

Keywords： Halloysite nanotubes； organic modification； adsorption desulfurization

Received 2015-03-30;

Corresponding Authors: 刘焕焕,E-mail:1032940478@qq.com。 Email: 1032940478@qq.com

About author: 马智(1967-),男,副教授,主要从事催化研究。

引用本文:

马智, 刘焕焕, 朱伟佳, 丁彤, 齐晓周.埃洛石纳米管上基团种类吸附脱硫性能[J]. 化学工业与工程, 2017,34(2): 35-38,61

Ma Zhi, Liu Huanhuan, Zhu Weijia, Ding Tong, Qi Xiaozhou.Adsorption Desulfurization Performance of Groups of Halloysite Nanotubes[J]. Chemcial Industry and Engineering, 2017,34(2): 35-38,61

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