咪唑类离子液体在蒙脱石上的吸附行为与机理

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Abstract

Sorption of imidazole-based ionic liquids (IBILs) with different alkyl chain lengths and anions onto Na-modified montmorillonite (Na/MMT) as affected by ionic strength and solution pH was investigated. The Na/MMT before and after sorption was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Scanning Electron Microscope (SEM). Sorption of IBILs on Na/MMT was due to the cation exchange interaction and the hydrophobic interaction between IBILs cations and Na/MMT while the effect of IBIL anions was negligible. Furthermore, the adsorption capacities were influenced by the alkyl chain length of IBILs cations. The longer the alkyl chain length, the greater adsorption capacity on the montmorillonite. The equilibrium adsorption of EmimBF₄, BmimBF₄, HmimBF₄ and OmimBF₄ was 33.94, 40.48, 44.40 and 53.29mmol/100g, respectively. The interlayer spacing of Na/MMT increased from 12.77Å to 14.41Å with the increase of the alkyl chain length. Both decreasing background ionic strength and increasing of solution pH will enhance the adsorption of IBILS on montmorillonite.

Key words： IBILs (imidazole-based ionic liquids) montmorillonite adsorption

Received: 11 July 2016

PACS:

X703.5

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	Articles by authors
	ZHAO Mei
	CHEN Guang-shi
	WEI Li
	QIU Yu-ping

Cite this article:

ZHAO Mei,CHEN Guang-shi,WEI Li等. Adsorption behavior and mechanism of imidazole-based ionic liquids on montmorillonite[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(4): 1450-1457.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2017/V37/I4/1450

[1]	Stepnowski P, Mrozik W, Nichthauser J. Adsorption of Alkylimidazolium and Alkylpyridinium Ionic Liquids onto Natural Soils[J]. Environmental Science & Technology, 2007, 41(2):511-516.
[2]	Reinert L, Batouche K, Lévêque J, et al. Adsorption of imidazolium and pyridinium ionic liquids onto montmorillonite:Characterisation and thermodynamic calculations[J]. Chemical Engineering Journal, 2012,209:13-19.
[3]	Wu L, Yang C, Mei L, et al. Microstructure of different chain length ionic liquids intercalated into montmorillonite:A molecular dynamics study[J]. Applied Clay Science, 2014,99:266-274.
[4]	Andrew S. Wells A, Coombe V T. On the Freshwater Ecotoxicity and Biodegradation Properties of Some Common Ionic Liquids[J]. Organic Process Research & Development, 2006,10(10):794-798.
[5]	El-Harbawi M. Toxicity Measurement of Imidazolium Ionic Liquids Using Acute Toxicity Test[J]. Procedia Chemistry, 2014, 9(9):40-52.
[6]	卢珩俊,陆胤,徐冬梅,等.咪唑类离子液体系列对卤虫的急性毒性研究[J]. 中国环境科学, 2011,31(3):454-460.
[7]	Wu X, Tong Z H, Li L L, et al. Toxic effects of imidazolium- based ionic liquids on Caenorhabditis elegans:The role of reactive oxygen species[J]. Chemosphere, 2013,93(10):2399-2404.
[8]	Jungnickel C, Markiewicz M, Preiss U, et al. Interaction of imidazolium type ionic liquids with the solid phase[J]. Journal of Optoelectronics & Advanced Materials-Symposia, 2009,1(1):82-87.
[9]	张瑞.水溶性咪唑离子液在粘土矿物上的吸附研究[D]. 兰州:兰州大学, 2014.
[10]	Gorman-Lewis D J, Fein J B. Experimental Study of the Adsorption of an Ionic Liquid onto Bacterial and Mineral Surfaces[J]. Environmental Science & Technology, 2004,38(8):2491-2495.
[11]	Sheng G. Adsorption of dinitrophenol herbicides from water by montmorillonite[J]. Clays and Clay Minerals, 2002,50(1):25-34.
[12]	JCT 593-1995 膨润土试验方法[Z].
[13]	Hameed B H, Tan I A W, Ahmad A L. Adsorption isotherm, kinetic modeling and mechanism of 2,4,6-trichlorophenol on coconut husk-based activated carbon[J]. Chemical Engineering Journal, 2008,144(2):235-244.
[14]	Lazaridis N K, Karapantsios T D, Georgantas D. Kinetic analysis for the removal of a reactive dye from aqueous solution onto hydrotalcite by adsorption[J]. Water Research, 2003,37(12):3023-3033.
[15]	Hameed B H, El-Khaiary M I. Kinetics and equilibrium studies of malachite green adsorption on rice straw-derived char[J]. Journal of Hazardous Materials, 2008,153(1/2):701-708.
[16]	方圣琼,潘进,李晓,等.羟基Fe、Al柱撑蒙脱石对庆大霉素的吸附行为[J]. 中国环境科学, 2016,36(3):778-785.
[17]	Zhang J, Cai D, Zhang G, et al. Adsorption of methylene blue from aqueous solution onto multiporous palygorskite modified by ion beam bombardment:Effect of contact time, temperature, pH and ionic strength[J]. Applied Clay Science, 2013,83-84(5):137-143.
[18]	Mahmoud M E, Al-Bishri H M. Supported hydrophobic ionic liquid on nano-silica for adsorption of lead[J]. Chemical Engineering Journal, 2011,166(1):157-167.
[19]	吴平霄,廖宗文.蒙脱石层间域的性质及其环境意义[J]. 地球科学进展, 2000,(2):184-189.
[20]	Ramadan A R, Esawi A M K, Gawad A A. Effect of ball milling on the structure of Na+-montmorillonite and organo- montmorillonite (Cloisite 30B)[J]. Applied Clay Science, 2010, 47(3/4):196-202.
[21]	Olphen H V. An Introduction to Clay Colloid Chemistry-second ed[M]. New York, 1997.
[22]	Takahashi C, Shirai T, Fuji M. Study on intercalation of ionic liquid into montmorillonite and its property evaluation[J]. Materials Chemistry and Physics, 2012,135(2/3):681-686.
[23]	Liu H B, Xiao H N. Investigation on Intercalation Modification of Sodium-montmorillonite by Cationic Surfactant[J]. 无机材料学报, 2012,27(7):780-784.
[24]	Hassan S, Yasin T. Role of tailored surface of activated carbon for adsorption of ionic liquids for environmental remediation[J]. International Journal of Environmental Science and Technology, 2015,12(8):2711-2722.
[25]	Tsai W T, Lai C W, Hsien K J. The effects of pH and salinity on kinetics of paraquat sorption onto activated clay[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2003, 224(1-3):99-105.
[26]	Farooq A, Reinert L, Levêque J M, et al. Adsorption of ionic liquids onto activated carbons:Effect of pH and temperature[J]. Microporous & Mesoporous Materials, 2012,158(158):55-63.
[27]	吴志坚,刘海宁,张慧芳.离子强度对吸附影响机理的研究进展[J]. 环境化学, 2010,(6):997-1003.