The role of electron interfacial transfer in mesoporous nano-TiO2 photocatalysis: a combined study of in situ photoconductivity and numerical kinetic simulation.
作者： Baoshun Liu , Jingjing Yang , Xiujian Zhao , Jiaguo Yu
DOI: 10.1039/C6CP07328J
关键词:
摘要: In this research, a combination of in situ photoconductivity (σ) and kinetic simulations was used to study the role electron interfacial transfer (IT) gaseous photocatalysis formic acid by mesoporous nanocrystalline TiO2. The effects light intensity, initial concentrations, oxygen amounts, temperature on σ photocatalytic courses were studied detail. dependence clearly shows that is determined IT electrons O2 rather than transport. It seen limits correlating with recombination hole via dynamic change densities. numerical simulation belongs thermally activated process presents thermal barrier 0.5 eV. considered high electrons. also activation does not relate IT, although overall limited Our finding it an effective way increase activity reducing IT.
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