High-Performance Photocatalytic H₂ Production Using a Binary Cu/TiO₂/SrTiO₃ Heterojunction

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High Resolution Image Download MS PowerPoint Slide Cu/TiO 2 /SrTiO 3 hybrid structures have been synthesized by the simple impregnation method from Cu/TiO 2 and SrTiO 3 systems. The structural and surface characterization stated that Cu/TiO 2 /SrTiO 3 composites form an effective covering of SrTiO 3 by Cu/TiO 2 . The heterostructured catalysts lead to an outstanding improved photoactivity for hydrogen production from methanol photoreforming that would be related with the efficient separation of charge pairs favored by the Cu/TiO 2 /SrTiO 3 heterojunction. The best photoproduction is attained for the 30 wt % SrTiO 3 heterojunction showing 81.7 mmol/g H 2 after 6 h (leading to an apparent quantum yield of ca 1%), 1.7 times higher than that of bare Cu/TiO 2 .