Supporting information for Degradation of oxcarbazepine by UV-activated persulfate oxidation: kinetics, mechanisms, and pathways Lingjun Bua, Shiqing Zhoua,*, Zhou Shi a,*, Lin Denga, Guangchao Lia, Qihang Yia, Naiyun Gaob a. Key Laboratory of Building Safety and Energy Efficiency, Ministry of Education, Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha, Hunan, 410082, P.R. China b. State Key Laboratory of Pollution Control and Resources Reuse, Key Laboratory of Yangtze Water Environment, Ministry of Education, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P. R. China * Corresponding author at: Department of Water Engineering and Science, College of Civil Engineering, Hunan University, Changsha, Hunan, 410082, China. Tel.: +86 731 88821441 Email address: sqzhouwater@163.com 1 H=5cm UV lamp Lamp shade Collimated Beam Device Stirrer and petri dish Support pier Fig S1. Bench-scale UV irridiation devices Fig S2. Mass spectrum of compound IV 2 Fig S3. Mass spectrum of compound V Fig S4. Mass spectrum of compound VI 3