| 초록 |
In recent years, the splitting of water for producing hydrogen and oxygen via photoelectrochemical process is well received. In the TiO2/CuS nanocomposite, type-Ⅱ band alignment can be observed. In this study, a photoanode based on TiO2/CuS heterostructure has been fabricated. At first, TiO2/CuS photocatalyst was synthesized by precipitation method using TiO2 particles with copper and sulfur precursors. Next, the TiO2/CuS paste was deposited on FTO glass by a doctor blade method for making the working electrode. The photoanodes with different weight percent of CuS were manufactured by controlling the molar ratios of Cu2+, S2-. The photoelectrochemical performance of substrates was analyzed using potentiostat(Iviumstat, Netherland). SEM was used to observe the morphology of TiO2/CuS photocatalyst. The evolution of hydrogen was measured by solar simulator and gas chromatography. |
