Figure 6 ,Table 3个

    • 图  1  有无氯情形下电化学体系中（a）Ni-EDTA降解效果；（b）TOC去除效果；（c）Ni-EDTA降解动力学拟合；（d）pH变化.

      Figure 1.  Comparisons of time-course (a) Ni-EDTA concentration, (b) TOC concentration, (c) kinetic-fitting results, and (d) pH variations in the electrochemical systems in the presence and absence of chloride.

    • 图  2  含氯离子的电化学体系反应后分离出灰黑色固体的表征分析

      Figure 2.  (a) The XRD pattern and (b) XPS curves of gray black solid obtained from the chloride-containing electrochemical system.

    • 图  3  电化学体系中灰黑色固体氧化PMSO效果

      Figure 3.  Oxidation of PMSO by the gray black solid obtained from the chloride-containing electrochemical system

    • 图  4  （a）电流密度和（b）氯离子浓度对Ni-EDTA降解的影响（内插图为Ni-EDTA降解动力学拟合）

      Figure 4.  Effects of (a) current density and (b) chloride concentration on time-course Ni-EDTA concentration (insert: kinetic-fitting results)

    • 图  5  电化学体系中Fe(Ⅲ)-EDTA（a）降解效果（b）降解动力学拟合；不同Ni2+浓度下Fe(Ⅲ)-EDTA（c）降解效果（d）降解动力学拟合.

      Figure 5.  Comparisons of time-course (a) Fe-EDTA concentration and (b) kinetic-fitting results in the electrochemical systems. The effects of concentration of added Ni2+ on (c) degradation of Fe(Ⅲ)-EDTA and (d) kinetic-fitting results

    • 图  6  Ni-EDTA在含氯电化学氧化体系中自催化降解途径示意图.

      Figure 6.  Schematic representation of the proposed pathways for Ni-EDTA autocatalytic degradation in the chloride-containing electrochemical oxidation system.