Copyright (c) 2014 AJC
This work is licensed under a Creative Commons Attribution 4.0 International License.
Preparation and Characterization of Magnetic Co0.5Mn0.5Fe2O4-Chitosan Nanoparticles as Surfactants in Oilfield
Corresponding Author(s) : Q. Lian
Asian Journal of Chemistry,
Vol. 26 No. 14 (2014): Vol 26 Issue 14
Abstract
The novel magnetic Co0.5Mn0.5Fe2O4-chitosan nanoparticles has the advantage of excellent biodegradation and a high level of controllability. The Co0.5Mn0.5Fe2O4-chitosan nanoparticles was prepared successfully. The size of the Co0.5Mn0.5Fe2O4-chitosan nanoparticles were all below 100 nm. The saturated magnetization of the Co0.5Mn0.5Fe2O4-chitosan nanoparticles could reach 80 emu/g and showed the characteristics of super-paramagnetism at the same time. The images of TEM and SEM electron microscopy showed that the cubic-shape magnetic Co0.5Mn0.5Fe2O4 particles were encapsulated by the spherical chitosan nanoparticles. The evaluation on the interfacial properties of the product showed that the interfacial tension between crude oil and water could be reduce to ultra-low values as low as 10-3 mN/m when the magnetic Co0.5Mn0.5Fe2O4-chitosan nanoparticle was used in several blocks in Shengli oilfield without other additives. Meanwhile, the magnetic Co0.5Mn0.5Fe2O4-chitosan nanoparticles possessed good salt-resisting capacity.
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Y. Wu, J. Guo, W.L. Yang, C.C. Wang and S.K. Fu, Polymer, 47, 5287 (2006); doi:10.1016/j.polymer.2006.05.017.
H.W. Gu, K.M. Xu, C.J. Xu and B. Xu, Chem. Commun., 941 (2006); doi:10.1039/B514130C.
P. Wunderbaldinger, L. Josephson and R. Weissleder, Bioconjug. Chem., 13, 264 (2002); doi:10.1021/bc015563u.
W. Wang, L. Deng, Z.H. Peng and X. Xiao, Enzyme Microb. Technol., 40, 255 (2007); doi:10.1016/j.enzmictec.2006.04.020.
E. Carrero, N.V. Queipo, S. Pintos and L.E. Zerpa, J. Petrol. Sci. Eng., 58, 30 (2007); doi:10.1016/j.petrol.2006.11.007.
M. Nitschke, S.G.V.A.O. Costa and J. Contiero, Biotechnol. Prog., 21, 1593 (2005); doi:10.1021/bp050239p.
J.D. Van Hamme, A. Singh and O.P. Ward, Biotechnol. Adv., 24, 604 (2006); doi:10.1016/j.biotechadv.2006.08.001.
R.S. Makkar, S.S. Cameotra and I.M. Banat, AMB Express, 1, 5 (2011); doi:10.1186/2191-0855-1-5.
H.-P. Meyer, Org. Process Res. Dev., 15, 180 (2011); doi:10.1021/op100206p.
S.L. Fox and G.A. Bala, Bioresour. Technol., 75, 235 (2000); doi:10.1016/S0960-8524(00)00059-6.
L.R. Rodrigues, J.A. Teixeira and R. Oliveira, Biochem. Eng. J., 32, 135 (2006); doi:10.1016/j.bej.2006.09.012.
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I.M. Banat, R.S. Makkar and S.S. Cameotra, Appl. Microbiol. Biotechnol., 53, 495 (2000); doi:10.1007/s002530051648.
A. Singh, J.D. Van Hamme and O.P. Ward, Biotechnol. Adv., 25, 99 (2007); doi:10.1016/j.biotechadv.2006.10.004.
J.D. Desai and I.M. Banat, Microbiol. Mol. Biol. Rev., 61, 47 (1997).
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R.B. Hernández, A.P. Franco, O.R. Yola, A. López-Delgado, J. Felcman, M.A.L. Recio and A.L.R. Merce, J. Mol. Struct., 877, 89 (2008); doi:10.1016/j.molstruc.2007.07.024.
G. Zhao, J.J. Xu and H.Y. Chen, Electrochem. Commun., 8, 148 (2006); doi:10.1016/j.elecom.2005.11.001.
L. Josephson, Coated with a Polysiloxane and Coupled to a Nucleic Acid, US Patent 4,672,040 (1987).