School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
J Environ Manage. 2024 Sep;367:121974. doi: 10.1016/j.jenvman.2024.121974. Epub 2024 Jul 29.
Multiple porous carbon materials have great promise and potential in the capacitive deionization (CDI) field. Specific surface area (SSA), pore size distribution, and preparation method of CDI electrode materials are essential for the treatment of heavy metal ions. In this work, PPy composited porous carbon electrodes (hypercrosslinked polymers/polypyrrole, HCPs/PPy) were obtained by one-step crosslinked carbonization preparation and electro-deposition. The diverse pore structure gives the composite electrode a large SSA and excellent adsorption performance. HCPs/PPy-4 gives a high SSA of 251.26 m/g. In the CDI process, the adsorption capacity of HCPs/PPy-4 for Fe, Cu, Pb, and Ag is 20.69 mg/g, 37.81 mg/g, 26.86 mg/g, and 40.95 mg/g. The negative electrode recoveries for the adsorption of the four ions were reached 81.2%, 89.2%, 85.5%, and 100%, respectively. It indicates that HCPs/PPy is a novel and potentially porous carbon electrode for high-performance CDI.
多种多孔碳材料在电容去离子（CDI）领域具有很大的应用前景和潜力。CDI 电极材料的比表面积（SSA）、孔径分布和制备方法对于重金属离子的处理至关重要。在这项工作中，通过一步交联碳化制备和电沉积得到了 PPy 复合多孔碳电极（超交联聚合物/聚吡咯，HCPs/PPy）。多样化的孔结构赋予了复合电极较大的 SSA 和优异的吸附性能。HCPs/PPy-4 的 SSA 高达 251.26 m/g。在 CDI 过程中，HCPs/PPy-4 对 Fe、Cu、Pb 和 Ag 的吸附容量分别为 20.69、37.81、26.86 和 40.95 mg/g。四种离子的吸附后负电极的回收率分别达到 81.2%、89.2%、85.5%和 100%。这表明 HCPs/PPy 是一种用于高性能 CDI 的新型、潜在的多孔碳电极。
