Spectroscopy and Spectral Analysis, Volume. 31, Issue 6, 1702(2011)

Preparation of Pb2+ Imprinted Acrylic Acid-co-Styrene and Analysis of Its Adsorption Properties by FAAS

Shawket Abliz, Abdiryim Supahun, WANG Ji-de, and Ismayil Nurulla*
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    With lead ion template, acrylic acid as functional monomer, potassium persulfate as initiator,strytrene as framework monomer, lead ion imprinted polymers(Pb(Ⅱ)-IIPs) were prepared using free emulsion polymerization method. The structure and morphology of the polymers were analyzed by UV-spectra, FTIR and scanning electron microscopy. The adsorption/desorption and selectivity for Pb2+ were investigated by flame atomic absorption spectrometry (FAAS) as the detection means. The results show that compared with non-imprinted polymers(NIPs), the Pb(Ⅱ)-IIPs had higher specific adsorption properties and selective recognition ability for Pb(Ⅱ). The relative selectivity coefficient of Pb(Ⅱ)-IIPs for Pb(Ⅱ) was 6.25, 6.18, 6.25 and 6.38 in the presence of Cd(Ⅱ), Cu(Ⅱ), Mn(Ⅱ) and Zn(Ⅱ) interferences, respectively. The absorption rate was the best at the pH of adsorbent solution of 6, Adsorption rate reached 96% during the 2.5 h static adsorption time. Using 3.0 mol·L-1 HCl as the best desorption solvent to desorb the adsorbents, the desorbtion rate reached 98%. Under the best adsorption conditions, the adsorption capacity of Pb(Ⅱ)-IIPs for Pb(Ⅱ) was found to be 40. mg·g.-1

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    Shawket Abliz, Abdiryim Supahun, WANG Ji-de, Ismayil Nurulla. Preparation of Pb2+ Imprinted Acrylic Acid-co-Styrene and Analysis of Its Adsorption Properties by FAAS[J]. Spectroscopy and Spectral Analysis, 2011, 31(6): 1702

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    Paper Information

    Received: Sep. 15, 2010

    Accepted: --

    Published Online: Jan. 5, 2012

    The Author Email: Nurulla Ismayil (ismayilnu@sohu.com)

    DOI:10.3964/j.issn.1000-0593(2011)06-1702-05

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