The ordered mesoporous carbon (OMC) synthesized by the template method was prepared as an electrosorption electrode in this study to discuss the electrosorption capacity of copper ions from an aqueous solution containing a chelating agent when the potential was applied. The physicochemical properties of OMC were analyzed by TEM, a nitrogen adsorption/desorption apparatus, an X-ray photoelectron spectrometer, and a Zeta potential meter. The concentration change of copper ions in the aqueous solution was measured by atomic absorption spectrometry, so as to calculate the electrosorption capacity. When the chelating agent was added in, the Cu-chelated complexes were adsorbed onto the anode, and the free copper ions were adsorbed by the cathode. When 0.8 V voltages were applied, the electrosorption capacity for copper ions from the aqueous solution with a slight amount of chelating agent was larger than that in the solution without chelating agent. For aqueous solution without chelating agent, the equilibrium electrosorption capacity for copper ions was 35.90 mg/g at pH = 4. For solutions with 10% citric acid or EDTA chelating agent, the copper ion electrosorption capacities increased to 70.18 mg/g and 59.26 mg/g, respectively.

在本研究中，通过模板法合成的有序介孔碳（OMC）被制备为电吸附电极，以讨论施加电位时含螯合剂的水溶液中铜离子的电吸附能力。通过TEM，氮吸附/解吸装置，X射线光电子能谱仪和Zeta电势仪分析OMC的理化性质。通过原子吸收光谱法测量水溶液中铜离子的浓度变化，以计算电吸附容量。当加入螯合剂时，Cu螯合的络合物被吸附到阳极上，而游离的铜离子被阴极吸附。当施加0.8 V电压时，含有少量螯合剂的水溶液对铜离子的电吸附能力要大于不含螯合剂的水溶液对铜离子的电吸附能力。对于不含螯合剂的水溶液，在pH = 4时，铜离子的平衡电吸附容量为35.90 mg / g。对于含10％柠檬酸或EDTA螯合剂的溶液，铜离子的电吸附容量分别增加至70.18 mg / g和59.26 mg / g。