Sulfamethazine degradation in the VUV/PMS/Cu( ii ) system: the critical role of VUV and reduction behavior of copper

Key Points

• The research aims to evaluate how effectively sulfamethazine can be degraded in a VUV/PMS/Cu(II) system compared to other methods.
• Investigated SMZ degradation using the VUV/Cu(II)/PMS system
• Compared VUV and UVC methods for photolysis
• Analyzed the role of hydroxyl and sulfate radicals in degradation
• Examined the efficiency of the Cu(I)/Cu(II) cycle influenced by VUV
• VUV exhibited superior performance in sulfamethazine removal compared to UVC
• Degradation was significantly driven by hydroxyl and sulfate radicals
• VUV notably accelerated the Cu(I)/Cu(II) cycling process.