A highly efficient porous rod-like Ce-doped ZnO photocatalyst for the degradation of dye contaminants in water

• Binjing Hu,
• Qiang Sun,
• Chengyi Zuo,
• Yunxin Pei,
• Siwei Yang,
• Hui Zheng and
• Fangming Liu

Beilstein J. Nanotechnol. 2019, 10, 1157–1165, doi:10.3762/bjnano.10.115

• doping. The photocatalytic degradation rate follows the order from highest to lowest activity: CZO-4 > CZO-3 > CZO-2 > CZO-1 > CZO-5 > ZnO. The main reason Ce doping can act to enhance photocatalytic activity can possibly be attributed to the presence of cerium ions in the ZnO lattice, whose 4f energy

• activity of samples with different Ce doping percentages. The cycle usage of the CZO-4 photocatalyst under optimized conditions in 2 h. XRD patterns of ZnO and CZO-4 (3% Ce doping). Ce 3d XPS of the catalyst CZO-4. SEM micrographs of (a) ZnO and (b) CZO-4 (3% Ce doping). The total electric field on the

• %, and 4%, respectively. The experimental results demonstrated that all CZO samples show significantly higher photocatalytic activity than ZnO. CZO-4 has the highest photocatalytic performance. It can be found that the degradation rate of RhB first increases and then decreases with the increase of Ce

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

• Bilel Chouchene,
• Tahar Ben Chaabane,
• Lavinia Balan,
• Emilien Girot,
• Kevin Mozet,
• Ghouti Medjahdi and
• Raphaël Schneider

Beilstein J. Nanotechnol. 2016, 7, 1338–1349, doi:10.3762/bjnano.7.125

• , BP 70239, 54506 Vandoeuvre-lès-Nancy Cedex, France 10.3762/bjnano.7.125 Abstract 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

• 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. Keywords: Ce doping; photocatalysis; solvothermal synthesis; ZnO rods; Introduction Due to the increasing pollution of