fabrication of porous biochar reinforced WO nanocomposite for methylene blue photodegradation.

In this paper, a novel cow dung based activated carbon (CDAC) was successfully modified by WO nanowires as a photocatalyst using KOH activation and a hydrothermal method. The activity of photocatalytic degradation of methylene blue (MB) under full-spectrum light illumination shows great improvement, and the degradation rate of MB could reach 98% after 240 min (67% for WO), with a final degradation rate of 98%. The porous structure with specific surface area of CDAC (∼479 m g) increases the adsorption of WO reactants and also raises the concentration of reactants in the photocatalytic region.