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TiO_2 nanotubes(TNTs) with nickel sulfide(NiS) co-catalyst were prepared by a simple solvothermal method and characterized by X-ray diffraction, transmission electron microscope, N_2-physisorption, UV–vis diffuse reflectance spectroscopy and photoluminescence spectroscopy. Loading NiS nano-clusters can significantly enhance the photocatalytic H_2 evolution performance of TNTs. The optimum NiS loading content was found to be 8 wt% and the corresponding hydrogen production rate is ca. 7486 μmol/h/g, being about 79 times higher than that of pure TNTs. This enhancement of photocatalytic H_2 evolution was attributed to the synergistic effect between NiS and TNTs.
TiO_2 nanotubes (TNTs) with nickel sulfide (NiS) co-catalyst were prepared by a simple solvothermal method and characterized by X-ray diffraction, transmission electron microscope, N_2-physisorption, The optimum NiS loading content was found to be 8 wt% and the corresponding hydrogen production rate is ca. 7486 mol / h / g, being about 79 times higher than that of pure TNTs. This enhancement of photocatalytic H 2 evolution was attributed to the synergistic effect between NiS and TNTs.