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Open AccessArticle

Preparation and Characterization of Nanocrystalline TiO2 on Microsericite for High-Efficiency Photo-Energy Conversion of Methanol to Hydrogen

1
Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
2
Photo-SMART (Photo-Sensitive Material Advanced Research and Technology) Center, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
3
Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
4
Research Center for Applied Sciences, Lac Hong University, Bien Hoa 810000, Vietnam
*
Authors to whom correspondence should be addressed.
Crystals 2019, 9(8), 380; https://doi.org/10.3390/cryst9080380
Received: 26 May 2019 / Revised: 16 July 2019 / Accepted: 22 July 2019 / Published: 24 July 2019
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 μmol/g·h in 6 h of UV-light irradiation. View Full-Text
Keywords: titanium dioxide; sericite; sol-gel method; photocatalysts; hydrogen production titanium dioxide; sericite; sol-gel method; photocatalysts; hydrogen production
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MDPI and ACS Style

Huang, C.-W.; Wu, M.-C.; Nguyen, V.-H.; Nguyen, B.-S. Preparation and Characterization of Nanocrystalline TiO2 on Microsericite for High-Efficiency Photo-Energy Conversion of Methanol to Hydrogen. Crystals 2019, 9, 380.

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