A novel V-doped CeO₂loaded alkali-activated steel slag-based nanocomposite for photocatalytic degradation of malachite green

Abstract

2016) A novel V-doped CeO 2 loaded alkali-activated steel slag-based nanocomposite for photocatalytic degradation of malachite green, Integrated Ferroelectrics, 170:1, 1-9, ABSTRACTIn the present study, V-doped CeO 2 loaded alkali-activated steel slag-based nanocomposite (V-CeO 2 -ASSN) as a novel catalyst for photocatalytic degradation of malachite green dye was firstly reported. X-ray diffraction (XRD) results demonstrated that there were mainly mineral phase of calcium silicate hydrate (CSH) and lawsonite, (CaAl 2 Si 2 O 7 (OH) 2 ·H 2 O) in the alkali-activated steel slagbased nanocomposites, and CeO 2 crystallite size is close to 20 nm dispersed on the surface of ASSN. The photocatalystic activity of vanadium doped CeO 2 loaded alkali-activated steel slag-based nanocomposite catalyst showed high degradation efficiency of malachite green (MG) dye under ultraviolet light irradiation, and the highest degradation rate can reach 100%. The photocatalytic degradation belongs to the first-order reaction kinetics.

Steel Slag as a Precursor Material for Alkali-Activated Binders: A Systematic Review.

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