Selective removal of toxic Cr(VI) from aqueous solution by adsorption combined with reduction at a magnetic nanocomposite surface
作者： Nazia H. Kera , Madhumita Bhaumik , Kriveshini Pillay , Suprakas Sinha Ray , Arjun Maity
DOI: 10.1016/J.JCIS.2017.05.018
关键词: Hexavalent chromium 、 Industrial wastewater treatment 、 Aqueous solution 、 Langmuir 、 Chemistry 、 Nanocomposite 、 Adsorption 、 Polypyrrole 、 Chromium 、 Inorganic chemistry
摘要: The adsorption of toxic hexavalent chromium (Cr (VI)) and its reduction to trivalent chromium (Cr (III)) are important processes for the treatment of industrial wastewater. Conducting polymers can adsorb and reduce Cr (VI) to less toxic Cr (III) but have low adsorption capacities due to agglomeration of particles and are difficult to separate from treated water. In this study, magnetic polypyrrole (PPy)–polyaniline (PANI)/iron oxide (Fe 3 O 4) nanocomposite was synthesized for the selective removal of Cr (VI) in aqueous solution …
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