Preparation and Characterization of High Porosity and High Oil-Absorbent Block CMCS Aerogel

Abstract:

Carboxymethyl chitosan aerogel was prepared by freeze-drying method with glutaraldehyde as crosslinking agent. The effect of different concentrations of crosslinking agent and solvent on the gel time and porosity was investigated. The absorption capacity of aerogel was investigated with different oils (gasoline, diesel oil, peanut oil, dimethyl silicone). The results were shown as 1) the highest porosity of the aerogel was 95.01% and the lowest density was 0.026g/cm³. 2) The optimum preparation condition was the concentration of crosslinking agent 20%, the solvent concentration 2%. Oil absorption capacity of the aerogel was up to the maximum of 28.6g/g (to dimethyl silicone), which was higher than to the other three oils. This work offered a preparation method for the high porosity, high oil-absorbing massive carboxymethyl chitosan aerogel and revealed its potential application in the treatment of oil pollution.

• Periodical: Advanced Materials Research (Volumes 887-888)
• Pages: 669-673
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.887-888.669
• Online since: February 2014
• Authors: Wan Tao Guo, Ling Bin Lu, Jian Jun Shi, Jia Yu Sun
• Keywords: Aerogel, Carboxymethyl Chitosan, Crosslinking Agent, Oil Absorption

References

[1] Kistler S S. Coherent expanded aerogels and jellies [J]. Nature, 1931, 127: 741.

DOI: 10.1038/127741a0

[2] Kistler S S. Coherent expanded aerogels [J]. J Phys Chem, 1932, 36(1): 52-64.

[3] Barrl K. Low-density organic aerogels by double-catalysed synthesis [J]. J Non-crystal Solids, 1998, 225: 46-50.

DOI: 10.1016/s0022-3093(98)00007-6

[4] Wu, J. J., Cooper, D. W., Miller, R. J. Virtual impactor aerosol concentrator for cleanroom monitoring [J]. J Environ Sci, 1989, 32(4), 52-56.

DOI: 10.17764/jiet.1.32.4.j663114j2007072l

[5] G. M. Pajonk. ChemInform abstract: Aerogel catalysts [J]. ChemInform, 1991, 22: 33.

[6] Sridhar Komarneni, Rustum Roy, Ulagaraj Selvaraj, Prakash B, Malla, and Else Breval. Nanocomposite aerogels: The SiO2-Al2O3 system [J]. J Res, 1993, 8: 3163-3167.

DOI: 10.1557/jmr.1993.3163

[7] Jin, H.; Nishiyama,Y.; Wada, M.; Kuga, S. Nanofibrillar cellulose aerogel [J]. Colloid Surf A-Physicochem Eng Asp, 2004, 240: 63-67.

[8] O. Krauß, R. Gerlach, J. Fricke. Experimental and theoretical investigations of SiO2-aerogel matched piezo-transducers [J]. Ultrasonics, 1994, 32: 217-222.

DOI: 10.1016/0041-624x(94)90036-1

[9] Jensen K I. Passive solar component based on evacuated monolithic silica aerogels [J]. JNon-crystal Solids, 1992, 145: 237-239.

DOI: 10.1016/s0022-3093(05)80463-6

[10] I. Buist, S. Potter, T. Nedwed, J. Mullin, Herding surfactants to contract and thicken oil spills in pack ice for in situ burning, Cold Reg. Sci. Technol. 67 (2011), 3-12.

DOI: 10.1016/j.coldregions.2011.02.004

[11] V. Broje, A.A. Keller, Improved mechanical oil spill recovery using an optimized geometry for the skimmer surface, Environ. Sci. Technol. 40 (2006) 7914–7918.

DOI: 10.1021/es061842m

[12] E.B. Kujawinski, M.C.K. Soule, D.L. Valentine, A.K. Boysen, K. Longnecker, M.C. Redmond, Fate of dispersants associated with the deepwater horizon oil spill, Environ. Sci. Technol. 45 (2011) 1298–1306.

DOI: 10.1021/es103838p

[13] M.A. Zahed, H.A. Aziz, M.H. Isa, L. Mohajeri, S. Mohajeri, Optimal conditions for bioremediation of oily seawater, Bioresour. Technol. 101 (2010) 9455–9460.

DOI: 10.1016/j.biortech.2010.07.077

[14] H.M. Choi, R.M. Cloud, Natural sorbents in oil spill clean up, Environ. Sci. Technol. 26 (1992) 772–776.

DOI: 10.1021/es00028a016

[15] M.O. Adebajo, R.L. Frost, J.T. Kloprogge, O. Carmody, S.J. Kokot, Porous materials for oil spill cleanup: a review of synthesis and absorbing properties, J. Porous Mater. 10 (2003) 159–170.

DOI: 10.1023/a:1027484117065

[16] A. Bayat, S.F. Aghamiri, A. Moheb, G.R. Vakili-Nezhaad, Oil spill cleanup from sea water by sorbent materials, Chem. Eng. Technol. 2 (2005) 1525–1528.

DOI: 10.1002/ceat.200407083

[17] Y. Chu, Q. Pan, Three-dimensionally macroporous Fe/C nanocomposites as highly selective oil-absorption materials, ACS Appl. Mater. Interface 4 (2012), 2420–2425.

DOI: 10.1021/am3000825

[18] Manfred Pinnow, Hans-Peter Fink, Carola Fanter, Jürgen Kunze. Characterization of highly porous materials from cellulose carbamate. Macromol. Symp, 2008, 262: 129-139.

DOI: 10.1002/masy.200850213

[19] Chen Lixia. Studies on Fiber Reinforced Silica Aerogel Super Thermal Insulation Materials. Chang'an University，(2008).

[20] Dou Zhongshang, Xu Hui, et al. Synthesis of Hydrophobic Silica Aerogels Via Ambient Pressure Drying. Rare Metal Materials and Engineering，2010, 39: 402-404.

[21] ZHOU Bei, ZHANG Rui，et al. Preparation of low density and high mesoporosity carbon aerogels by an organic/inorganic hybrid method. New Carbon Materials，2011，26：118-121.

[22] Heath L, Thielemans W. Cellulose nanowhisker aerogels. Green Chem, 2010, 12: 1448-1453.

DOI: 10.1039/c0gc00035c

[23] Liebner F, Haimer E, Wendland M. Aerogels from unaltered bacterial cellulose: Applications of scCO2 drying for the preparation of shaped, ultra-lightweitht cellulosic aerogels. Macromol Biosci, 2010, 10: 349-352.

DOI: 10.1002/mabi.200900371

[24] Yi Cheng, Lingbin Lu, Wuyuan Zhang, Jianjun Shi, Yang Cao. Reinforced low density alginate-based aerogels: Preparation, hydrophobic modification and characterization. Carbohydrate Polymers, 2012, 88, 1093-1099.

DOI: 10.1016/j.carbpol.2012.01.075