Nanocrystalline mesoporous Ta2O5-based photocatalysts prepared by surfactant-assisted templating sol–gel process for photocatalytic H2 evolution

Hydrogen production from the photocatalytic hydrolysis of sodium borohydride in the presence of In–, Sn–, and Sb–TiO2s

“…However, the measured FWHM values for the Ti2p 3/2 peak, 2.10 eV, were almost identical in all the catalysts. Hsu and co-workers [13] reported the FWHM values were also effective for supposition of the oxidation state of a metal; the larger the FWHM, the higher the oxidation state. Herein, the absorption for the tetrahedral symmetry of Ti 4+ in the UV-vis spectra normally appears at around 350 nm in all the catalysts.…”

A simple route utilizing surfactant-assisted templating sol–gel process for synthesis of mesoporous Dy2O3 nanocrystal

“…Hence, it is interesting to apply this combined technique to prepare nanosized Dy 2 O 3 with specific pore size characteristic. Recently, based on our previous works, the surfactant-assisted templating sol-gel process was effectively employed to achieve nanocrystalline mesoporous TiO 2 and Ta 2 O 5 [28,29]. Herein, this work is the first attempt to synthesize Dy 2 O 3 nanocrystal with mesoporous feature by utilizing this proposed straightforward technique under mild conditions.…”

Dye Modification Effects on TaON for Photocatalytic Hydrogen Production from Water

“…Photocatalytic water splitting for converting solar energy to hydrogen energy is one of the ideal solutions for our energy problems. To date, various metal oxide semiconductors, especially Ta-based oxides, have been reported as highly active photocatalysts for water splitting [1][2][3][4][5][6][7][8]. However, these compounds have wide band gaps, which is a disadvantage for solar energy harvesting.…”