Abstract:
:Based on direct reducing of copper ions by commercially available zero valent iron (ZVI), ZVI/Cu polyscale particles with high activation are synthesized and exhibit significant removal efficiency for reactive black (RB) dye. The ZVI/Cu polyscale particles could maintain a good performance for RB removal at a wide pH range of 3.0-9.0. Different from the mineralization process of other organic pollutants in ZVI/Cu system, the degradation kinetics of RB could be described well by novel pseudo-second kinetic models. Results of scanning electron microscopy (SEM), X-ray fluorescence elemental analysis (EDX), and X-ray diffraction (XRD) show the planting Cu has deposited on the surface of Fe0 . The characterization of ZVI/Cu particles and RB solution before and after degradation reveals that decolorization of RB is not only resulted from the reduction process including direct reduction by accepting electrons from Fe0 oxidation and indirect reduction by atomic hydrogen generated on the ZVI/Cu surface, but also the oxidation of hydroxyl radicals in the mineralization procedure of RB dye.
journal_name
Microsc Res Techjournal_title
Microscopy research and techniqueauthors
Deng H,Zhang C,Jiang Y,Ma Z,Mao Zdoi
10.1002/jemt.23152subject
Has Abstractpub_date
2019-02-01 00:00:00pages
134-143issue
2eissn
1059-910Xissn
1097-0029journal_volume
82pub_type
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