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Photocatalytic CO2 reduction with H2 as a reductant over gold (Au)-doped TiO2 nanocatalysts in a continuous monolith photoreactor has been investigated. The nanocatalysts were characterized by XRD, SEM, N2 adsorption-desorption and UV-Visible spectroscopy. Crystalline nanoparticles of anatase phase TiO2 were obtained in the Au-doped TiO2 samples. CO was the major product over 0.5 wt. % Au-doped TiO2 with the yield rate of 12,305 ppm g-catal.-1 h-1, 318 times higher than un-doped TiO2 catalyst.doi:10.3303/cet1545044 doaj:84f39d620572420d978df6cdfa6087f3 fatcat:6tdih3i3hfdpvkovfeps5eutzq