Fe₃O₄/PANI/MnO₂core–shell hybrids as advanced adsorbents for heavy metal ions

Jian Zhang, Jie Han,* Minggui Wang and Rong Guo*

School of Chemistry and Chemical Engineering, Yangzhou University

Abstract:Multifunctional magnetic adsorbents containing MnO₂and polyaniline (PANI) with optimized adsorption properties toward heavy metal ions have been developed. In particular, Fe₃O₄spheres were chosen as the magnetic core, followed by PANI and MnO₂coating, realizing the formation of Fe₃O₄/PANI/MnO₂core–shell hybrids. The as-synthesized Fe₃O₄/PANI/MnO₂core–shell hybrids showed a hierarchical structure with a large surface area and high magnetic saturation value. In comparison with Fe₃O₄/PANI and Fe₃O₄/MnO₂core–shell hybrids, Fe₃O₄/PANI/MnO₂core–shell hybrids displayed the highest adsorption capacity toward heavy metal ions (including Cd(II), Zn(II), Pb(II) and Cu(II)), thanks to the integrated physical and chemical adsorption behaviors resulting from MnO₂inorganic oxide and the PANI polymer. The developed multifunctional Fe₃O₄/PANI/MnO₂adsorbents synthesized by a facile and economic route are believed to show high potential in environmental remediation for heavy metal removal.

J Mater Chem A, 2017, 5, 4058-4066.

文章链接: http://pubs.rsc.org/en/content/articlelanding/2017/ta/c6ta10499a#!divAbstract

文章附件：

5-JMCA-2017-5-4058