Synthesis, characterization and photocatalytic activity of Cs3PW12O40/WO3 composite

In this work, a novel Cs3PW12O40/WO3 composite was successfully prepared for the first time by a facile thermal decomposition method. The as prepared composite was characterized by XRD, FT-IR, SEM, EDS, DRS and N2 adsorption/desorption techniques. The photocatalytic activity of Cs3PW12O40/WO3 composite was evaluated by photocatalytic degradation of RhB aqueous solution under xenon light irradiation. The results indicated the complete degradation of RhB molecules over Cs3PW12O40/WO3 composite after 30 min irradiation. However, the photocatalytic degradation of RhB over WO3 and Cs3PW12O40 after 80 min light irradiation are nearly 52%, and 68%, respectively. The enhanced photocatalytic activity of Cs3PW12O40/WO3 composite compared with WO3, and Cs3PW12O40 wasattributed to the strong interaction between WO3 and Cs3PW12O40 that leads to efficient separation of photogenerated electron-hole pairs

Keywords:

Cs3PW12O40 , Composite , Photocatalyst , Degradation