有机物改性对埃洛石纳米管吸附脱硫性能的影响

摘要

通过插层法和离子交换法对埃洛石纳米管（HNTs）进行有机物改性，研究了二甲基亚砜、甲醇以及十六烷基三甲基溴化铵改性对HNTs结构以及吸附脱硫性能的影响，考察了温度、时间和剂油比对吸附剂脱硫性能的影响。采用X射线衍射、红外光谱、透射电子显微镜与N₂吸附-脱附测试等对吸附剂进行分析表征。结果表明，有机物改性后HNTs的基本管状结构并未破坏，但层间距和管径有一定变化，吸附脱硫能力有所提高，其中HDTMA改性的埃洛石在温度为30℃、时间为4 h、剂油比为1∶20的条件下容硫量达到9.42 mg/g，脱硫率由未改性HNTs的29.62%提高到58.85%。

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	马智
	何康康
	陈航
	祁晓烨

关键词：埃洛石纳米管有机物改性 HDTMA 吸附脱硫

Abstract：

Organics modified nanotubes was prepared successfully using intercalation and ion exchange method. Effects of DMSO, CH₃OH and HDTMA on structure and adsorption desulfurization performance of halloysite nanotubes(HNTs) were investigated, the influences of adsorption temperature, time and rate were discussed. The modified HNTs were characterized by X-Ray diffractometer, infrared spectroscopy, transmission electron microscopy and N₂ adsorption-desorption. The results show that the basic tubular structure of HNTs was not destroyed, but the intercalating space and nanotube diameters were changed, after the organics modification, the adsorption desulfurization capability were enhanced, when the temperature is 30℃, adsorption time is 4 hours, and ratio of adsorbent to oil is 1:20, the adsorption capacity of the HDTMA modified HNTs is about 9.42 mg/g, and the desulfurization rate increases to 58.85% from 29.62%.

Keywords： halloysite nanotubes； organics modification； HDTMA； adsorption desulfurization

Received 2016-04-04;

Corresponding Authors: 何康康,E-mail:hkk4641908@163.com。 Email: hkk4641908@163.com

About author: 马智(1967-),男,副教授,主要从事硅铝酸盐纳米管材料的制备及性能开发研究。

引用本文:

马智, 何康康, 陈航, 祁晓烨.有机物改性对埃洛石纳米管吸附脱硫性能的影响[J]. 化学工业与工程, 2018,35(2): 29-34

Ma Zhi, He Kangkang, Chen Hang, Qi Xiaoye.Effect of Organics Modification on Adsorption Desulfurization Performance of Halloysite Nanotubes[J]. Chemcial Industry and Engineering, 2018,35(2): 29-34

[1] 石亚华. 石油加工过程中的脱硫[M]. 北京:中国石化出版社, 2009 Shi Yahua. The desulfurization of petroleum processing[M]. Beijing:China Petrochemical Press, 2009(in Chinese)
[2] Zhang Q, Shi L, Meng X. Deep adsorption desulfurization of liquid petroleum gas by copper-modified bentonite[J]. RSC Advances, 2016, 6:9589-9597
[3] Ahmed I, Jhung S H. Adsorptive desulfurization and denitrogenation using metal-organic frameworks[J]. Journal of Hazardous Materials, 2016, 301:259-276
[4] Crespo D, Yang R. Adsorption of organic vapors on single-walled carbon nanotubes[J]. Industrial and Engineering Chemistry Research, 2006, 45:5524-5530
[5] Rawtani D, Agrawal Y K. Multifarious applications of halloysite nanotubes:Review[J]. Reviews on Advanced Materials Science, 2012, 30(3):282-295
[6] Zhou C, Keeling J. Fundamental and applied research on clay minerals:From climate and environment to nanotechnology[J]. Applied Clay Science, 2013, 74(1):3-9
[7] Kamble R, Ghag M, Gaikawad S, et al. Halloysite nanotubes and applications:A Review[J]. Journal of Advanced Scientific Research, 2012, 3(2):25-29
[8] Kiani G. High removal capacity of silver ions from aqueous solution onto halloysite nanotubes[J]. Applied Clay Science, 2014, 90(12):159-164
[9] 祁晓烨,马智,张园园,等. 埃洛石纳米管表面结构对其吸附脱硫性能的影响[J]. 化学工业与工程, 2016, 33(5):21-25 Qi Xiaoye, Ma Zhi, Zhang Yuanyuan, et al. Effects of surface structure on the desulfurization properties of halloysite nanotubes[J]. Chemical Industry and Engineering, 2016, 33(5):21-25(in Chinese)
[10] 马智,朱伟佳,刘焕焕,等. 硅铝酸盐纳米管的有机改性研究现状[J]. 硅酸盐通报, 2015, 34(5):1282-1289 Ma Zhi, Zhu Weijia, Liu Huanhuan, et al. Research progress on organic modificatian for aluminumsilicate nanotube[J]. Bulletin of the Chinese Ceramic Society, 2015, 34(5):1282-1289(in Chinese)
[11] Mahrez N, Bendenia S, Marouf-Khelifa K, et al. Improving of the adsorption capacity of halloysite nanotubes intercalated with dimethyl sulfoxide[J]. Composite Interfaces, 2015, 22(6):403-417
[12] Tan D, Yuan P, Annabi-Bergaya F, et al. A comparative study of tubular halloysite and platy kaolinite as carriers for the loading and release of the herbicide amitrole[J]. Applied Clay Science, 2015, 114:190-196
[13] Liu R, Fu K, Zhang B, et al. Removal of methyl orange by modified halloysite nanotubes[J]. Journal of Dispersion Science & Technology, 2012, 33(5):711-718
[14] 抚顺石油工厂. GB/T 380-1977石油产品硫含量测定法(燃灯法)[S]. 北京:中国标准出版社,1988 Fushun oil factory. GB/T 380-1977 Determination of sulfur content in petroleum products(lamp method)[S]. Beijing:Standards Press of China,1988(in Chinese)
[15] Joussein E, Petit S, Churchman J, et al. Halloysite clay minerals-A review[J]. Clay Miner, 2005(40):383-426
[16] Sugahara Y, Satokawa S, Kuroda K, et al. Evidence for the formation of interlayer polyacrylonitrile in kaolinite[J]. Clays and Clay Minerals, 1988, 36(4):343-348
[17] Yuan P, Tan D, Annabi-Bergaya F, et al. Changes in structure, morphology, porosity, and surfaces activity of mesoporous halloysite nanotubes under heating[J]. Clays and Clay Minerals, 2012, 60(6):561-573
[18] Sing K S W. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)[J]. Pure and Applied Chemistry, 1985, 57(4):603-619