%0 Journal Article %T Biomolecule-Assisted Synthesis of Nanocrystalline CdS and Bi<sub>2</sub>S<sub>3</sub> for Photocatalytic Hydrogen Evolution %A Caolong Li %A Wei Chen %A Jian Yuan %A Mingxia Chen %A Wenfeng Shangguan %J World Journal of Nano Science and Engineering %P 79-83 %@ 2161-4962 %D 2011 %I Scientific Research Publishing %R 10.4236/wjnse.2011.13012 %X Novel CdS and Bi<sub>2</sub>S<sub>3</sub> hollow nanospheres were prepared by simple ¡°one-pot¡± biomolecule-assisted hydrothermal method using glutathione (GSH) as sulfur source and structure-directing reagents. The single-phase CdS and Bi<sub>2</sub>S<sub>3</sub> photocatalysts were capable of evolving H<sub>2</sub> from aqueous solutions containing a sacrificial electron donor, under visible light irradiation (¦Ë ¡Ý 420 nm) with Pt co-catalyst. A possible formation mechanism of complexation, S-C bond rupture, and spherical aggregate followed isotropic Ostwal ripening or anisotropic Ostwal ripening was proposed in this study. %K CdS %K Bi< %K sub> %K 2< %K /sub> %K S< %K sub> %K 3< %K /sub> %K Photocatalyst %K Hydrogen Evolution %K Ostwal Ripening %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=7510