Preparation And Characterization Of PEG Bis(amine) Grafted PMMA/SPION Composite Nanoparticles  

Yongyuth Wanna1,4*, Rachineewan Pui-ngam1, Jitti Nukeaw1, Anon Chindaduang2, Gamolwan Tumcharern2, Supanit Porntheerapat3, Sirapat Pratontep1

1College of Nanotechnology, King Mongkut's Institute of Technology Ladkrabang, Bangkok 12120, Thailand

2National Nanotechnology Center (NANOTEC), 111 Thailand Science Park, Pahol Yothin Rd,  Klong Luang, Pathumthani 12120, Thailand

3Thai Microelectronics Center (TMEC), 51/4 Moo 1, Wangtakien District, Amphur Muang, Chachoengsao 24000, Thailand

4Nara Machinery Co. Ltd. 2-5-7?Jonan-Jima, Ohta-ku, Tokyo 1430002, Japan

Adv. Mater. Lett., 2016, 7 (3), pp 176-180

DOI: 10.5185/amlett.2016.5912

Publication Date (Web): Feb 01, 2016

E-mail: yongyuth.wanna@gmail.com

Graphical Abstract

 

Abstract


We report novel magnetic composite nanoparticles for heavy metal ion separation. Superparamagnetic iron oxide nanoparticles (SPIONs) and were coated with poly(methylmethacrylate) (PMMA) by emulsion polymerization process in the aqueous suspension of SPIONs. In addition, the hydrolysis of carboxylic functional groups onto the PMMA-coated SPIONs was grafted with Polyethylene glycol bis(amine). Then, the functional group structures were investigated by Fourier transforms infrared spectroscopy (FTIR). The morphology of PMMA/SPIONs was determined by transmission electron microscopy (TEM) and atomic force microscope (AFM). The magnetic property was investigated by the vibrating sample magnetometer (VSM). The metal concentration in the solution after separation using the nanoparticles was determined by inductivity coupled plasma optical emission spectrometer (ICP-OES). Furthermore, we demonstrate that the efficiencies of the heavy metal ion removal for Cu(II), Mn(II), Zn(II), Cd(II), Pb(II), Co(II) and Ni(II) are 80.0 %, 57.7 %, 54.3 %, 40.0 %, 34.8 %, 32.5 % and 30.2 % by weight, respectively. The nanoparticles also exhibit some selectivity for copper, manganese and zinc. The results show that the composite nanoparticles are extremely promising for heavy metal ion separation. 

Keywords

SPIONs, PMMA, composite nanoparticles, heavy metal removal, surface modification.

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