288003 Magnetic Polymer Nanocomposites for Environmental Remediation

Tuesday, October 30, 2012
Hall B (Convention Center )
Hongbo Gu1, Sowjanya B. Rapole1, Yudong Huang2, Suying Wei3 and Zhanhu Guo4, (1)Integrated Composites Laboratory (ICL), Dan F Smith Department of Chemical Engineering, Lamar University, Beaumont, TX, (2)School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China, (3)Department of Chemistry and Biochemistry, Lamar University, Beaumont, TX, (4)Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX

Magnetic Polymer Nanocomposites for Environmental Remediation

 

Hongbo Gu, Sowjanya B. Rapole, Yudong Huang, Suying Wei and Zhanhu Guo

In this talk, the toxic Cr(VI) removal from polluted water by the magnetic conductive polyaniline (PANI) polymer nanocomposites (PNCs) synthesized using a facile surface initiated polymerization (SIP) method was investigated. The effects of initial Cr(VI) concentration, PNC concentration and pH value on the Cr(VI) removal have been studied. The synthesized PNCs showed unique capability to remove Cr(VI) in solutions with a wide pH range. The saturation magnetization of these PNCs was observed to have no obvious decrease after treatment with Cr(VI) solutions and they can be easily recycled by a permanent magnet from the solution. The Cr(VI) removal kinetics in the different pH solutions was determined. The Cr(VI) removal mechanism was investigated by Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), energy-filter transmission electron microscopy (EFTEM) and temperature dependent resistivity as well.

 


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See more of this Session: Poster Session: Nanoscale Science and Engineering
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