Graphene oxide-assisted synthesis and photocatalytic hydrogen production of mix-phase titanium dioxide (TiO₂) nanosheets

Abstract

ARTICLE This journal isNovel mix-phase TiO 2 nanosheets were successfully synthesized by a facile Sol-gel method via using graphene oxide (GO) as the sacrifice template for the first time. The SEM, TEM and AFM images revealed that the thickness of mix-phase TiO 2 nanosheets was ca. 66 nm, and the TiO 2 nanosheets were in a polycrystalline phase and made up of nanoparticles with the diameters of 15-25 nm. In addition, we observed that the proportion of rutile and anatase changed with the amount of tetrabutyltitanate (TBT). The results showed that the sample with 4 mL tetrabutyltitanate (TBT-4) exhibited the highest hydrogen production rate (339 µmol/h) in all samples, which was 47% higher than the bulk sample. It was mainly attributed to the surface phase junction of anatase and rutile and the special morphology of the samples.

Cu–TiO2 systems for the photocatalytic H2 production: Influence of structural and surface support features

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Microwave-assisted synthesis of La–Cr co-doped SrTiO3 nano-particles and their use in photocatalytic hydrogen evolution under visible light

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Mesoporous Foam TiO2 Nanomaterials for Effective Hydrogen Production

“…Moreover, this system exceeds the photoactivity for hydrogen production when compared to other reports using TiO 2 ,5d, 20 although some catalysts such as TiO 2 /graphene oxide21 and Ag‐doped TiO 2 NPs10 are still more active for this reaction.…”