Construction and characteristics of a novel green photocatalyst:iron (III) doped titania nanomesh.

In this work, a green Fe-doped TiO 2 photocatalyst was successfully synthesized on Ti mesh through the chemical impregnation and anodization method. The influence of sample Fe-content on the photocatalytic performance was investigated in detail. Ordered TiO 2 nanomesh was compactly decorated with nanospheres to form a novel photocatalyst Fe-doped TiO 2 with anatase phase. Simultaneously, it exhibits higher light absorption intensity compared to the pristine TiO 2 within the visible light range, and its absorption peak has a redshift. The VSM results showed that the sample has excellent magnetic properties. It is hard to achieve magnetic agglomeration after magnetic field removal, which benefits the strong recyclability and reusability of Fe-doped TiO 2 photocatalyst. Importantly, this higher visible-light photoresponse of TiO 2 was clearly obtained after Fe doping. When the Fe-content was 0.6 wt%, the degradation rate of methylene blue reached 87.9% under simulated sunlight irradiation for 2.5 h. The prepared nanocrystalline photocatalyst demonstrated excellent photocatalysis because of its prominent crystal morphology, strengthen light-absorption capacity, and commendable inhibition recombination of photo-induced electron-hole. [ABSTRACT FROM AUTHOR]