A dual-templating strategy for synthesis of Bi2WO6 with oxygen vacancies for enhanced light-driven photocatalytic oxidation alcohol

•The flower-like Bi2WO6 with oxygen vacancy was obtained by using the anionic and cationic dual surfactant strategy.•The increase of oxygen vacancy concentration on the surface of Bi2WO6 is the result of synergistic effect of dual surfactants.•The enhancement of oxygen vacancy concentration can narrows the band gap, expands the absorption range of light, and improves the separation efficiency of photoelectric charge in Bi2WO6.