【作者】 马前； 庄琳懿； 叶少丹； 倪亚明；

【Author】 Qian Ma1, Linyi Zhuang2, Shaodan Ye3, Yaming Ni1 (1. School of Life Science and Technology, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, 200092; 2. Department of Chemistry, Tongji University, Shanghai, 200092; 3. Shanghai Academy of Agricultural Sciences, Shanghai, 201106)

【机构】 同济大学生命科学与技术学院、污染控制与资源化研究国家重点实验室； 同济大学化学系； 上海市农业科学研究院；

【Abstract】 SnO2+Sb2O3+PtO/Al2O3 porous grained three-dimensional electrode was prepared by a standard spray pyrolysis technique. The influence factors to prepare grained electrode were determined. According to the single factor analysis, the optimum factors for tartrazine treatment were steps of 15, sprayed temperature of 450℃, and modified: unmodified of 2:1. The best removal efficiency with current of 800mA, initial pH value of 7 and the concentration of Na2SO4, 1g/L was achieved based on orthogonal test. Through NLSF, it showed that the decreasing tendency of tartrazine during the degradation process met the pseudo-first-order reaction kinetics, and the pseudo rate constant was 0.04871min-1. The intermediate benzoquinone, methylbenzene, 2-methyl propyl acetate and butyl acetate were detected by GC-MS. It could be speculated that tartrazine was first degraded into benzene homologues, then into aliphatic acid esters which were more easily broken down, and finally might be thoroughly degraded into carbon dioxide and water.更多还原