| 초록 |
Photo-reforming of glycerol is an attractive biomass feedstock for the production of renewable energy such as hydrogen and biofuel. Recently, ZnS has been considered as a promising material for the production of biofuel because of its inexpensive cost and suitable potential for the oxidation of organic compounds. However, ZnS absorbs only ultraviolet region owing to a wide band gap (~3.6 eV) and suffers from fast recombination of electron-hole pair. In this study, we have synthesized non-noble metal doped ZnS/ZnO photoanodes (MZZ) for the efficient photo-reforming of glycerol. The band-gap tuning of ZnS by doping enables the absorption of visible light. In addition, the charge separation is enhanced by the formation of heterostructure, providing a direct pathway for the electrons. As a result, the efficiency of photo-reforming of the MZZ is greatly improved over the pristine photoanode. |
