TiO Nanowires with Doped g-CN Nanoparticles for Enhanced H Production and Photodegradation of Pollutants.

With the rapid consumption of fossil fuels, along with the ever-increasing environmental pollution, it is becoming a top priority to explore efficient photocatalysts for the production of renewable hydrogen and degradation of pollutants. Here, we fabricated a composite of g-CN/TiO via an in situ growth method under the conditions of high-temperature calcination. In this method, TiO nanowires with a large specific surface area could provide enough space for loading more g-CN nanoparticles to obtain CN/TiO composites. Of note, the g-CN/TiO composite could effectively photocatalyze both the degradation of several pollutants and production of hydrogen, both of which are essential for environmental governance. Combining multiple characterizations and experiments, we found that the heterojunction constructed by the TiO and g-CN could increase the photocatalytic ability of materials by prompting the separation of photogenerated carriers. Furthermore, the photocatalytic mechanism of the g-CN/TiO composite was also clarified in detail.