A novel BiOI/TiO2 nano-heterojunction was prepared using hydrothermal and sol-gel methods. The composite material characterized by X-ray diffraction, ultraviolet-visible diffuse reflection spectroscopy, scanning electron microscopy, transmission microscopy. crystallinity response to light of were controlled preparation conditions such as the optimal solvent condition heat treatment temperature....

Abstract In recent years, many semiconductor materials have been applied to the photocatalysis technology. As a with wide band gap (3.37 eV), ZnO has received extensive attention in photocatalytic degradation of organic pollutants due its rich morphology, low cost and other advantages. However, ZnO, it can only absorb ultraviolet light (accounting for about 4% whole solar spectrum), which great...

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