286195 Magnetic Polyaniline Nanocomposites for Environmental Remediation

Thursday, November 1, 2012: 3:40 PM
408 (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)Chemistry and Biochemistry, Lamar University, Beaumont, TX, (4)Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX

Magnetic Polyaniline 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) was investigated. The PNCs were synthesized using a facile surface initiated polymerization (SIP) method. 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 in 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. 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: Low Cost Adsorbents
See more of this Group/Topical: Topical K: Sustaining Water for Future Generations