| Summary: | 碩士 === 國立高雄海洋科技大學 === 輪機工程研究所 === 98 === In this study, we consider that 9.1% nitrogen doped indium tin oxide (N-ITO) and 9.1% nitrogen, carbon doped indium tin oxide (N, C-ITO) on the stack of three different thickness of TiO2 and reduce the sputtering time , deposited on indium tin oxide is not heated (ITO, Indium Tin Oxide) glass substrate on the photocatalyst (Ti-N-ITO), (Ti-N, C-ITO), and thus can have a good effect of the photocurrent and the degradation of methylene blue, while the visible light, can have excellent results with the same decomposition of hydrogen power pollution..
The results indicate that a 60-minute sputtering TiO2 specimens (N-ITO), (N, C-ITO)that the surface of morphology of the crystallization relatively is flat and dense surface roughness is small. its compact and crystalline size became larger, and reduce the production of grain boundaries, low resistivity, then the effect of photocurrent help restore the effectiveness of its upgrade. In the XRD spectrum in that the film had its test anatase titanium dioxide phase, the photocatalytic oxidation effect of enhancing the role are; also clearly shows the characteristics of polycrystalline In2O3, the peak intensity ratio, indicating the end of material on the quality of surface resistance of less conducive to electron transfer, so the photocatalytic activity has good reduction results. In the simulation, under sunlight, Ti-N, C-ITO doped with nitrogen, carbon, 1.5V bias in helping, its photo-current value of 388 μA/ cm2, sputtering time with more than 40 minutes and only nitrogen doped Ti-N-ITO in more than 80 per square centimeter of a few μA, show that doping of nitrogen and carbon were plated on the reduction has a positive effect. DMSO degradation in the production of hydrogen at the same time, we have to sample Ti-N, C-ITO experiment found that when the applied bias voltage 1.5V, the hydrogen production rate was 12 μmol/cm2-hr, the degradation rate of 0.0126 l/cm2-hr and compared with 0.5V bias, that although the partial pressure difference of 3 times in under its hydrogen production rate was a difference of up to 40 times, said Ti-NC-ITO photocatalytic hydrogen production in the hydrolytic degradation of pollutants in this area at the same time very effective.
Keywords: nitrogen doped carbon, indium tin oxide, visible light photocatalyst, the photocatalytic reaction.
|
|---|
