Design of mesostructured H3PW12O40–titania materials with controllable structural orderings and pore geometries and their simulated sunlight photocatalytic activity towards diethyl phthalate degradation

A series of mesostructured H3PW12O40–titania materials with two-dimensional hexagonal, three-dimensional cubic, and three-dimensional interconnected sponge-like pore geometries were developed by using a single step nonionic-surfactant-templating strategy combined with evaporation-induced self-assembly (EISA) or hydrothermal treatment technique. The mesostructure, morphology, porosity, optical absorption property as well as composition and structure of as-prepared materials were well-characterized. Subsequently, the materials were successfully applied to the degradation of an aqueous diethyl phthalate (a kind of endocrine disrupting chemical) under the simulated sunlight irradiation at λ > 320 nm and λ > 400 nm region, respectively, and special attention was paid to investigate the influences of the structural orderings, pore geometries, H3PW12O40 loadings as well as calcination temperature on the photocatalytic performance of the H3PW12O40–titania materials to the target reaction.

Mesostructured H3PW12O40–titania materials with controllable structural orderings and pore geometries were successfully developed by design the suitable preparation routes, and they exhibited different simulated sunlight photocatalytic activity towards diethyl phthalate degradation.Figure optionsDownload as PowerPoint slideResearch highlights▶ Structural orderings and pore geometries of H3PW12O40/TiO2 were prepared controllably. ▶ Structural orderings and pore geometries influenced photocatalytic activity of H3PW12O40/TiO2. ▶ H3PW12O40/TiO2 maintained similar level of activity after five catalytic cycles.