Figure 4
From: Photo-induced H2 production from a CH3OH-H2O solution at insulator surface
(a) Photoluminescence spectra of quartz reactor and quartz sand powders under excitation by the 266 nm and 325 nm lasers. (b) EPR spectra of the quartz sand particles with or without treatment by different electron scavengers. (c) Photo-induced H2 production with the addition of insulator particles (SiO2 or Al2O3) into the CH3OH-H2O solution. (d) The time curve of photo-induced H2 production in (c). Reaction condition: 5.0 g insulator particles were added in the solution, 0.05 wt% Pt was deposited by in-situ photo-deposition method at the initial stage of the reaction, 500 mL CH3OH-H2O solution (10% CH3OH), 450 W Hg lamp was used as light source, inner irradiation type.
