化工学报Issue(1)：410-418,9.DOI:10.11949/j.issn.0438-1157.20140943
热活化过硫酸盐降解水中卡马西平
Degradation of carbamazepine in water by thermally activated persulfate
摘要
Abstract
The antiepileptic drug carbamazepine (CBZ) was chosen as the target compound to investigate the degradation efficiency of an oxidation process by thermally activated persulfate (TAP). Furthermore, some key factors affecting this efficiency such as initial persulfate concentrations, temperature and zero-valent iron dosage were also evaluated. The resulted showed that the rate constant of degradating CBZ increased with increase of the initial persulfate concentrations. There appeared a linear relation between the degradation rate constant and the initial persulfate concentration. Elevating temperature could improve the carbamazepine degradation. Carbamazepine degradation by TAP oxidation abided by pseudo-first-order kinetics, activation energy (Ea) was (120.4±2.6) kJ·mol−1. The degradation rate and mineralization degree for Carbamazepine can be significantly improved if a small amount of zero-valent iron was added into TAP system. When the system temperature set at 60℃, the optimum dosage of zero-valent iron was 0.05 g·L−1. Sulfate radicals were prone to attack alkene double bonds in azepine ring and the main intermediate products found were hydroxycarbamazepine, epoxycarbamazepine, pyridine aldehydes and ketones.关键词
热活化过硫酸盐/自由基/卡马西平/降解/反应动力学Key words
thermally activated persulfate (TAP)/radical/carbamazepine/degradation/reaction kinetics分类
建筑与水利引用本文复制引用
邓靖,冯善方,马晓雁,邵益生,高乃云,李军..热活化过硫酸盐降解水中卡马西平[J].化工学报,2015,(1):410-418,9.基金项目
国家科技重大专项（2008ZX07421-002，2012ZX07403-001）；国家自然科学基金项目（51208468）。@@@@supported by the National Major of Science &Technology Ministry of China (2008ZX07421-002,2012ZX07403-001) and the National Natural Science Foundation of China (51208468) （2008ZX07421-002,2012ZX07403-001）
