Facile method to prepare magnetic multi-walled carbon nanotubes by in situ Facile method to prepare magnetic multi-walled carbon nanotubes by in situ co-precipitation route

Kanokwan Sowichai; Sitthisuntorn Supothina; On-uma Nimittrakoolchai; Takafumi Seto; Yoshio Otani; Tawatchai Charinpanitkul

Journal of Industrial and Engineering Chemistry, Vol.18, No.5, 1568-1571, September, 2012

DOI10.1016/j.jiec.2012.04.016 Export Citation

Facile method to prepare magnetic multi-walled carbon nanotubes by in situ Facile method to prepare magnetic multi-walled carbon nanotubes by in situ co-precipitation route

Kanokwan Sowichai, Sitthisuntorn Supothina¹, On-uma Nimittrakoolchai¹, Takafumi Seto², Yoshio Otani², and Tawatchai Charinpanitkul^†

Center of Excellence in Particle Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
¹National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, 111 Thailand Science Park, Pathumtani, Thailand
²Particle Processing Laboratory, Department of Chemical and Material Engineering, Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Japan

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An effective method for preparing magnetic multi-walled carbon nanotubes (M-MWCNTs) was proposed by employing an in situ co-precipitation of ammonium ferrous sulfate hexahydrate and ammonium ferric sulfate dodecahydrate in a suspension of commercial MWCNTs. Microscopic and spectroscopic analyses could confirm the presence of magnetite, maghemite and hematite on the surface of M-MWCNTs. Negative charges on the surfaces of acid-treated MWCNTs would lead to the attachment of iron derivatives which possessed positive charge due to electrostatic attraction. As a result, the prepared M-MWCNTs were clearly responsive to a permanent magnetic while the pristine MWCNTs were not.

Keywords:Carbon nanotubes;Magnetic;In situ co-precipitation;Iron oxide

[References]

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He ZB, Maurice JL, Gohier A, Lee CS, Pribat D, Cojocaru CS, Chemistry of Materials., 23, 5379 (2011)
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Li Y, Zhang XL, Qiu ZR, Qiao R, Kang YS, J. Ind. Eng. Chem., 14(1), 22 (2008)
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[Referenced By]

[1] Iijima S, Nature., 354, 56 (1991)

[2] Long RQ, Yang RT, J. Am. Chem. Soc., 123(9), 2058 (2001)

[3] Charinpanitkul T, Tanthapanichakoon W, Sano N, Current Applied Physics., 9, 629 (2009)

[4] Kaminski MD, Nunez L, Journal of Magnetism and Magnetic Materials., 194, 31 (1999)

[5] Blanchard NP, Hatton RA, Silva SRP, Chem. Phys. Lett., 434(1-3), 92 (2007)

[6] Qu S, Wang J, Kong J, Yang P, Che G, Talanta., 71, 1096 (2007)

[7] Oliveiraa LCA, Rios RVRA, Fabris JD, Sapag K, Garg VK, Lago RM, Applied Clay Science., 22, 169 (2003)

[8] Legodi MA, de Waal D, Dyes and Pigments., 7, 161 (2007)

[9] Shebanova NO, Lazor P, Journal of Raman Specroscopy., 34, 845 (2003)

[10] He ZB, Maurice JL, Gohier A, Lee CS, Pribat D, Cojocaru CS, Chemistry of Materials., 23, 5379 (2011)

[11] He ZB, Maurice JL, Lee CS, Gohier A, Pribat D, Legagneux P, Cojocaru CS, Carbon., 49, 435 (2011)

[12] He ZB, Lee CS, Maurice JL, Pribat D, Haghi-Ashtiani P, Cojocaru CS, Carbon., 49, 4710 (2011)

[13] Li Y, Zhang XL, Qiu ZR, Qiao R, Kang YS, J. Ind. Eng. Chem., 14(1), 22 (2008)

[14] Kuo CY, Desalination, 249(2), 781 (2009)

[15] Andrei OE, Bica I, J. Ind. Eng. Chem., 15(4), 573 (2009)

[16] Wang ZY, Yu XD, Pan B, Xing BS, Environmental Science and Technology., 44, 978 (2010)