A POM-based one-dimensional (1D) chain structure compound, {BW12O40[Cu(2,2’-bipy)2]2[Cu(2,2’-bipy)(H2O)]}{BW12O40[Cu(2, 2’-bipy)2][Cu(2,2’-bipy)(H2O)2]}·7H2O, has been synthesized and structurally characterized, which represents an unprecedented 1D double chain structure with opposite charges. In contrast to common...

Polyoxometalate-based all-inorganic three-dimensional (3D) frameworks have recently attracted attention as a unique class of materials due to their unique physicochemical properties and a wide field of application with excellent prospects. We herein synthesized a novel all-inorganic 3D framework material based on cobalt-substituted Silverton-type polyoxometalate,) and Co(NO 3 ) 2 •6H 2 O as starting materials in a hydrothermal reaction via a decomposition−reassembly route together with the rational adjustment of pH values. Co 9 W 10 has been structurally characterized using single-crystal X-ray diffraction. Photocurrent response, band-gap (E g ) value, and the VB-XPS spectrum have been measured to reveal the semiconducting property of Co 9 W 10 . Furthermore, we synthesized x% PTh/Co 9 W 10 composites (PTh = polythiophene, x = 0.5, 1, 2, 5) for photodegradation of tetracycline hydrochloride (TH) to evaluate the photocatalytic activities of title composites. Due to the optimal molar ratio of hybrids and matching energy levels, 2% PTh/Co 9 W 10 composites show the best photocatalytic activities among these composites.

Three new ZnW12-based hybrids were synthesized by controlling the pH values of the reaction systems. Compound 3 can efficiently catalyze the oxidation of toluene to benzaldehyde.