One-Step High-Temperature Solvothermal Synthesis of TiO₂/Sulfide Nanocomposite Spheres and Their Solar Visible-Light Applications

A one-step high-temperature hydrated-sulfate assisted solvothermal method has been developed to synthesize TiO₂/sulfide nanocomposite spheres. Different hybrid spheres of TiO₂/CdS, TiO₂/Cu₂S, TiO₂/FeS, TiO₂/Co₉S₈, and TiO₂/ZnS were readily prepared by exploiting different hydrated sulfate. The hydrated sulfate has been proved to play multifunctional roles during the synthetic process, such as spherical template, water supplier, and composition controller. Nanocrystal CdS can be reduced from CdSO₄ at a high solvothermal temperature of 350 °C, and the TiO₂/CdS nanocomposite spheres prepared by this method exhibit superior visible-light-driven photocatalytic efficiency because of its effective heterointerface and high crystallinity

Construction of Porphyrin-Containing Metallacycle with Improved Stability and Activity within Mesoporous Carbon

The successful construction of porphyrin functionalized metallacycle in the confined cavity of mesoporous carbon FDU-16 (<b>3⊂C</b>) is presented in this study. Because of high dispersity of metallacycles within the mesoporous cavities, the stability and activity of porphyrin-containing metallacycles were obviously improved. For example, ¹O₂ generation efficiency of <b>3⊂C</b> is ca. 6-fold faster than that of free metallaycles in solution. Thus, the resultant hybrid material has been successfully employed as a heterogeneous catalyst for photooxidation of sulfides