Cs0.33WO3/(t-m)-BiVO4 double Z-type heterojunction photothermal synergistic enhanced full-spectrum degradation of antibiotics

The Cs0.33WO3/(t-m)-BiVO4 double-Z heterojunction photocatalysts were prepared with photodeposition method and Cs0.33WO3 photothermal effect. After 180 min of reaction to Visible/NIR light, the dual Z-type heterojunction photocatalyst degraded 40 mg/L TC at the rates of 90.49 % and 91.94 %, respectively. The TOC removal rates were 73.41 % and 75.85 %, respectively. Moreover, the double Z-type heterojunction photocatalyst has good degradation stability and broad-spectrum degradability in the full spectral range. The presence of small polariton leap effects in Cs0.33WO3 crystals radiates energy in the form of phonons and raises the temperature of the liquid-phase reaction system, and the photothermal-photocatalytic synergy accelerates and enhances the degradation catalytic activity of the heterojunction. The synergistic contribution of photothermal effect-photocatalysis applied to environmental purification is presented in this study as a novel and practical research proposal.