In order to study the properties of cellulose-based aerogels obtained from different dissolution systems, cotton cellulose was dissolved in four kinds of dissolving system including NaOH/urea/H2O, NaOH/thiourea/H2O, ionic liquids 1-butyl-3-methylimidazolium chloride (BMIMCl) and 1-allyl-3-methylimidazolium chloride salt (AMIMCl). Additionally, the obtained cellulose-based aerogels were characterized, and the adsorption performance to chlorate ions (ClO3?) were studied. The results showed that the crystal structures of cellulose-based aerogels transforms from type I into II. The aerogels obtained from BMIMCl solvent system gives lower crystallinity a thermal stability than those from the other solvent systems, whereas it possesses higher specific surface area, total pore volume and smaller average pore size, and higher adsorption performance for trace amount of ClO3? in aqueous solution.
Yuqing ZHANG Yifan LIU Guifang YANG Jiachen LU Minghua LIU
. Effect of Dissolution Systems on Properties of Cellulose-based Aerogels[J]. The Chinese Journal of Process Engineering, 2017
, 17(6)
: 1310
-1315
.
DOI: 10.12034/j.issn.1009-606X.217188
[1] Wang D, Mclaughlin E, Pfeffer R, et al. Adsorption of oils from pure liquid and oil–water emulsion on hydrophobic silica aerogels[J]. Separation & Purification Technology, 2012, 99(99):28-35.
[2] Sun H, Xu Z, Gao C. Multifunctional, ultra-flyweight, synergistically assembled carbon aerogels.[J]. Advanced Materials, 2013, 25(18):2554-60.
[3] Aulin C, Netrval J. Aerogels from nanofibrillated cellulose with tunable oleophobicity[J]. Soft Matter, 2010, 6(14):3298-3305.
[4] Pierre A C, Pajonk G M. Chemistry of Aerogels and Their Applications[J]. Chemical Reviews, 2003, 102(11):4243-65.
[5] Liu S, Yan Q, Tao D, et al. Highly flexible magnetic composite aerogels prepared by using cellulose nanofibril networks as templates.[J]. Carbohydrate Polymers, 2012, 89(2):551-7.
[6] Aerogels.org. Strong and Flexible Aerogels. http://www.aerogel.org/?p=1058. Accessed Nov 28, 2013.
[7] Olsson R T, Samir M A S A, Salazar-Alvarez G, et al. Making flexible magnetic aerogels and stiff magnetic nanopaper using cellulose nanofibrils as templates[J]. Nature Nanotechnology, 2010, 5(8):584-8.
[8] Cervin N T, Aulin C, Larsson P T, et al. Ultra porous nanocellulose aerogels as separation medium for mixtures of oil/water liquids[J]. Cellulose, 2012, 19(2):401-410.
[9] Tan C, Fung B M, Newman J K, et al. Organic Aerogels with Very High Impact Strength[J]. Advanced Materials, 2001, 13(9):644-646.
[10 ]周虹, 周小新. 饮用水中的亚氯酸盐、氯酸盐和溴酸盐的离子色谱测定法[J]. 环境与健康杂志, 2009, 26(7):630-631.
[11] 黄丽浈. 纤维素的溶解再生与接枝改性[D]. 华南理工大学, 2013.
[12] Liu F, Lu J, Shen J, et al. Preparation of mesoporous nickel oxide of sheet particles and its characterization[J]. Materials Chemistry & Physics, 2009, 113(1):18-20.
[13] Chu M, Liu G. Synthesis of liposomes-templated CdSe hollow and solid nanospheres[J]. Materials Letters, 2006, 60(1):11-14.
[14] Yu J, Zhao X, Zhao Q. Photocatalytic activity of nanometer TiO 2, thin films prepared by the sol–gel method[J]. Materials Chemistry & Physics, 2001, 69(1–3):25-29..
[15] Zhang Q, Li W, Liu S. Controlled fabrication of nanosized TiO 2, hollow sphere particles via, acid catalytic hydrolysis/hydrothermal treatment[J]. Powder Technology, 2011, 212(1):145-150.
