电容去离子
铜
电极
吸附
离子
废水
碳纤维
电化学
无机化学
化学
钼
材料科学
氮气
水溶液中的金属离子
硫化物
化学工程
复合材料
废物管理
有机化学
物理化学
工程类
复合数
作者
Tao Wu,X Chen,Hongguo Zhang,Meng Zhao,Lei Huang,Jia Yan,Minhua Su,Xianjie Liu
标识
DOI:10.1016/j.seppur.2022.122284
摘要
Capacitive deionization has been considered as a promising wastewater treatment technology because of its low-cost and highly efficient. Herein, we prepared hollow bowl-type carbon materials loaded with molybdenum sulfide (HBC-MoS2) composites and fabricated it as an innovative electrode material to remove Cu2+ in a multi-ion coexistence system. With the synergistic effect of electric double layer (EDL) and complexation between MoS2 and Cu2+, the HBC-MoS2-0.02 electrode achieved effective removal of copper ions from low concentration wastewater (25 mg/L) and high electrosorption capacity of 28.97 mg g−1 at 1.0 V. Even in the presence of competing ions (Na+/Zn2+/Cu2+), the HBC-MoS2-0.02 electrode still can effectively remove Cu2+ with a final adsorption capacity of 28 mg g−1, showing its superiority. The mechanism of Cu2+ removal by HBC-MoS2 is mainly due to the synergistic effect of EDL and complexation.
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