A novel V-doped CeO2 loaded alkali-activated steel slag-based nanocomposite for photocatalytic degradation ofmalachite green

作者：Kang, Le; Zhang, Yao Jun^*; Yang, Meng Yang; Zhang, Li; Zhang, Ke; Zhang, Wei Long

来源：Integrated Ferroelectrics, 2016, 170(1): 1-9.

DOI：10.1080/10584587.2016.1165572

• Alkali-activated steel slag-based nanocomposite
• V-doped CeO2
• photocatalytic activity
• malachite green
• reaction kinetics

In the present study, V-doped CeO2 loaded alkali-activated steel slag-based nanocomposite (V-CeO2-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, (CaAl2Si2O7(OH)(2)center dot H2O) in the alkali-activated steel slag-based nanocomposites, and CeO2 crystallite size is close to 20 nm dispersed on the surface of ASSN. The photocatalystic activity of vanadium doped CeO2 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.

• 出版日期2016
• 单位西安建筑科技大学