Article Dans Une Revue Beilstein Journal of Nanotechnology Année : 2016

High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis

Résumé

Ce-doped ZnO (ZnO:Ce) nanorods have been prepared through a solvothermal method and the effects of Ce-doping on the structural, optical and electronic properties of ZnO rods were studied. ZnO:Ce rods were characterized by XRD, SEM, TEM, XPS, BET, DRS and Raman spectroscopy. 5% Ce-doped ZnO rods with an average length of 130 nm and a diameter of 23 nm exhibit the highest photocatalytic activity for the degradation of the Orange II dye under solar light irradiation. The high photocatalytic activity is ascribed to the substantially enhanced light absorption in the visible region, to the high surface area of ZnO:Ce rods and to the effective electron–hole pair separation originating from Ce doping. The influence of various experimental parameters like the pH, the presence of salts and of organic compounds was investigated and no marked detrimental effect on the photocatalytic activity was observed. Finally, recyclability experiments demonstrate that ZnO:Ce rods are a stable solar-light photocatalyst.

Domaines

Matériaux Chimie
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Dates et versions

hal-01371730 , version 1 (28-10-2024)

Identifiants

Citer

Bilel Chouchene, Tahar Ben Chaabane, Lavinia Balan, Emilien Girot, Kevin Mozet, et al.. High performance Ce-doped ZnO nanorods for sunlight-driven photocatalysis. Beilstein Journal of Nanotechnology, 2016, 7, pp.1338-1349. ⟨10.3762/bjnano.7.125⟩. ⟨hal-01371730⟩
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