| 초록 |
Glycerol oxidation through photoelectrochemical (PEC) processes using semiconductor photocatalysts has been considered as an attractive approach to produce fossil-fuel-alternative energy sources. Among various transition metal oxide semiconductors, ZnO has been frequently investigated as the photocatalyst for the PEC glycerol oxidation due to its non-toxicity, intrinsic chemical stability, and environmental compatibility. However, the light absorption of ZnO is greatly limited to ultraviolet region owing to its wide band gap (3.2 eV) and it has low conversion rate of glycerol because of its poor adsorption efficiency. In this study, we have fabricated organic etchant-modified ZnO photoanode decorated with co-catalyst in order to improve adsorption of glycerol on the surface of ZnO and to utilize visible light. |
