Abstract
In this study, nano-flower WO3 hollow microspheres were synthesized by calcining SrWO4 precursors at 300 °C. The WO3-FeOOH-X series photocatalysts were synthesized by successfully anchoring the amorphous FeOOH quantum dots uniformly on the WO3 nanoflower petals. Azo dyes in single system (MB, AR-18) and mixed system (MB+AR-18) were treated synergistically by light and Fenton. The reusability of WO3-FeOOH-3 samples at ambient temperature was investigated. Active species removal experiments were conducted to reveal their photo-Fenton degradation mechanism of organic pollutants. The results showed that the degradation rate of WO3-FeOOH-3 was 98.69% for MB within 5 min. The degradation rate of AR-18 was 92.55%. The mixed dye system (MB+AR-18) became clarified within 5 min. The efficient degradation rate was attributed to the homogeneous dispersion centers and the multiple active sites provided by the WO3 petals for FeOOH anchoring. In conclusion, WO3-FeOOH-X provides a new pathway and applicability for the efficient degradation of MB and AR-18 azo dyes.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
