Studies of Several Systems with Air Electrode Electro-Synthesizing H2O2 on the Spot for Degrading Aniline in Aqueous

A gas diffusion electrode (air electrode) with a high current efficiency of electro-synthesizing H2O2 using O2 in air was prepared. The several systems with air electrode as cathode of electro-synthesizing H2O2 on the reaction spot for degrading aniline in aqueous--electro-Fenton system, photo-excitation electro-H2O2 system and photo-electro-Fenton system, were developed. The rates of decomposition of H2O2 and mineralization of aniline were experimentally measured respectively under different conditions, and the results indicated there has an excellent parallel relation between decomposition rate of H2O2 and mineralization rate of aniline. Especially, photo-electro-Fenton system, where H2O2 is decomposed the fastest, is the best system of oxidizing and degrading organic toxicants. Compared photo-electro-Fenton system with photo-Fenton system, important role is revealed in the interface of air electrode. In this paper, the mineralization mechanism of aniline in the photo-electro-Fenton system was also discussed.     

发挥学生积极性,培养高素质化学人才--综合化学实验教学改革实践

从发挥学生主动学习积极性的角度,对综合化学实验课程的教学实践进行探讨,强调培养学生的创新能力和科学素养,并对综合化学实验的进一步改革提出看法.     

南京电子工业发展战略研究

南京电子工业发展战略研究范汾涤，沐志成，徐士钰，许金龙，张文炽一、南京电子工业发展现状南京素以“电子城”著称。作为南京的一大优势，其生产规模、产品水平、科技开发能力均在全国居领先地位。以１９９２年为例，在全国３７个中心城市（不包括３个直辖市）中，南京...