期刊
CRYSTALS
卷 9, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/cryst9080380
关键词
titanium dioxide; sericite; sol-gel method; photocatalysts; hydrogen production
资金
- Ministry of Science and Technology (MOST), Taiwan [MOST 106-2218-E-992-304-MY2]
- Lac Hong University [LHU-RF-TE-18-01-09]
TiO2 and TiO2/sericite photocatalysts were successfully synthesized via the sol-gel method by adding a varying amount of acetic acid. The effect of acetic acid on TiO2 and TiO2/sericite photocatalysts was studied. The crystallite size, surface morphology, chemical composition, specific surface area, surficial functional groups, and light absorbance of the prepared photocatalysts were revealed by the analysis of X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectrometry (SEM-EDS), nitrogen adsorption-desorption isotherms by using BET theory (Brunauer-Emmett-Teller), Fourier-transform infrared spectroscopy (FTIR), and UV-Vis absorption spectrometry. Photo-energy conversion of methanol to hydrogen was also conducted over the prepared photocatalysts. The best hydrogen production was achieved by using the TiO2/sericite photocatalyst to give a hydrogen production rate of 1424 mu mol/g center dot h in 6 h of UV-light irradiation.
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