Efficient and Stable Degradation of Triazophos Pesticide by TiO2/WO3 Nanocomposites with S-Scheme Heterojunctions and Oxygen Defects

The prevalent utilization of organophosphorus pesticides presents a profound risk to the global environment, necessitating immediate development secure and reliable methodology mitigate this hazard. Photocatalytic technology, through generation robust oxidizing free radicals by suitable catalysts, offers viable solution effectively pesticides, thus preserving environmental well-being. In study, we successfully synthesized TiO2/WO3 (TO/WO) nanocomposites characterized oxygen defects S-scheme heterojunctions, demonstrating superior photocatalytic activity in degradation triazophos. Notably, 60-TO/WO nanocomposite, wherein proportion WO comprises 60% total, exhibited optimal activity, achieving rate 78% within 120 min, exceptional stability, maintaining impressive across four cycles. This performance was notably that standalone TO WO. presence corroborated electron paramagnetic resonance (EPR) spectroscopy. mechanism at heterojunction identified as an S-scheme, also confirmed EPR theoretical computations. Oxygen expedite charge transfer enhance reaction, while segregates photogenerated electrons holes, thereby optimizing oxidation study introduces novel nanocomposite material, heterojunction, capable degrading triazophos promoting health.