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Photochemical reduction of Cr(VI) coupled with Ni(II) adsorption by thiourea-functionalized magnetic coconut shell carbon: Experimental and DFT insights
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DOI：10.1016/j.seppur.2026.139672.png)
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Abstract
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• Simultaneous reduction of Cr(VI) and Ni(II) adsorption by thiourea-functionalized CSAC@Fe3O4. • Under acidic conditions, Cr(VI) is in-situ reduced and stable in Cr(III). • Available sites of -S and N deliver a favorable coordinate for Ni(II) uptake. • Effective adsorption is sustained in real electroplating wastewater with coexisting ions. • DFT calculations provide adsorption energies and mechanisms of charge transfer.
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