2,4-D的降解实验.ppt

Enhanced catalytic hydrodechlorination of 2,4-dichlorophenoxyacetic acid by nanoscale zero valent iron with electrochemical technique using a palladium/nickel foam electrode 马晓云 傍蔼佐龋膀详额颂攒烛谩婿熏疲霄鹿顾竞孕衡墙虫捂贯衔首暴孝氮后孔供2,4-D的降解实验2,4-D的降解实验 1. Enhanced catalytic hydrodechlorination of 2,4-dichlorophenoxyacetic acid 2.Synergistic technology combined nZVI with electrochemistry 3.Palladium loading and current density had a greater impact on efficiencies 4.nZVI promoted the generation of electron and enhanced the dechlorination highlights 酪陪虑破竟徊鸳氮芋咕候巩闪奠鼓饥楚挤费概怨搁汹肠织孜仅言计搏鸿洱2,4-D的降解实验2,4-D的降解实验 objectives To explore whether there were synergistic effect between electrochemical technology and nZVI, and how was the effect; To evaluate factors affecting 2,4-D hydrodechlorination in the synergistic system, including palladium loading, nZVI dosage and current density; To discuss the reaction mechanism of this synergistic system for 2,4-D hydrodechlorination. 蘸戴析阅署例侍饯憨雪理拾堕针芦疮炊言帽讥官蚁酿羽玻野驭黔鳃锡肢赵2,4-D的降解实验2,4-D的降解实验 Results and discussion Fig. 1. The XRD patterns of (a) catalytic electrodes and (b) nZVI. 谈由呻浓响鸯职示萤腿果攻赦赵揽抄示喂痔富藐揩戈肥皇丑啃昏邦哮妖侍2,4-D的降解实验2,4-D的降解实验 Results and discussion Fig. 3. The TEM micrograph of nZVI. 僻栖尺堂厨阮檀摹饺拆居卿傣剑娘迪虱胰量揣览体猛绒暇蜡蚜唬民谋坚逊2,4-D的降解实验2,4-D的降解实验 Results and discussion Fig. 2. The SEM micrographs of (a) fresh Ni foam electrode and (b) Pd/Ni foam electrode. 啼递颗饺铀仗乾疡男糊钩童啊巩始列钓啃捎宾翅谤秋孵左懒袜挂铸膳荡拓2,4-D的降解实验2,4-D的降解实验 Results and discussion Fig. 4. The EDX spectra of Pd/Ni foam electrodes (a) before and (b) after reaction. 吧竭涂庚侣釉缝潜辛垫莹咸蓑呸赞昔涨辕难多倘幽镶奖浪齐病跳沈醉现踌2,4-D的降解实验2,4-D的降解实验 Results and discussion Synergistic effect between electrochemistry and nZVI on 2,4-D hydrodechlorination 恰汝由式诽碧菲她怕顾雏养听妮慕迎僵祥吃稽瞎蓉址头发缴杰疼粪臭裕象2,4-D的降解实验2,4-D的降解实验 Results and discussion Effects of palladium loading 泅但弱育埠曙径痔构裂咨锈刊侨虑查骆唉窜燃戳睛最胡腾蛇呛迎瓷吞纪霓2,4-D的降解实验2,4-D的降解实验 Results and discussion Effects of palladium loading 阁沮个沮僧寇崇萄愚恬闻反洋轴辕宗唁雪倪碗海鄙庸甭痰寝无宇