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A novel M3L2 cage-based microporous coordination polymer has an obvious, surface-enhanced luminescence in the solvents CH2Cl2 and CHCl3.

The monodisperse, flowerlike CdS hollow spheres have been successfully synthesized by employing sulfur as the sulfate sources from a solution of H4SiW12O40 (SiW12) in ethanol through UV irradiation. The SiW12 that serves as photocatalyst plays a very important role on the synthesis of CdS crystals. The morphologies of the synthesized CdS crystals could be controlled by adjusting experimental parameters, such as initial precursor ratios, reaction time, and concentration of reagents. The possible mechanism of formation for the CdS nanostructures is proposed based on the experimental results. The Brunauer–Emmett–Teller (BET) surface area of the CdS hollow spheres calculated from the N2 adsorption isotherm is 175.8 m2 g−1, which is much larger than the value reported in previous reports. The optical properties of CdS hollow structures have also been studied. Importantly, the CdS hollow nanostructures have extraordinary photocatalytic activity for the photodegradation of rhodamine B (RhB) under irradiation with visible light.

Ag 3 PO 4-AgBr nanocomposites with a novel heterostructure were synthesized by a simple one-step reaction at room temperature with cetyltrimethylammonium bromide as surfactant and bromine source. The nanocomposites comprise uniform, monodisperse nanospheres of average diameter 90 nm. AgBr nanoparticles are present both on the surface and inside the nanospheres. The morphology of the composites can be controlled by adjusting the reaction conditions. The photocatalytic activity of the nanospheres was evaluated by monitoring degradation of methyl orange and rhodamine B under visible light irradiation. The results indicate that this novel heterostructure has much greater activity and structural stability than pure Ag 3 PO 4. This may be primarily ascribed to effective separation of photoexcited electron-hole pairs at the contact interfaces.