Capacitive deionization (CDI) has attracted immense attention in recent years due to its simple energy efficient and eco-friendly desalination process. In capacitive deionization research, limited scale of fabrication for active materials and improving desalination efficiency have been the major challenges. Herein, micro-meso-macroporous three-dimensional graphene (MMM-3DG) with a high surface area (1492.8 m² g⁻¹) was fabricated in gram-scale production (>1.0 g per one time) as an effective active material for CDI. MMM-3DG exhibited a high electrosorption capacity (9.37 mg g⁻¹) and a fast electrosorption rate (2.79 mg g⁻¹ min⁻¹). Furthermore, MMM-3DG delivered an outstanding rate constant value of 0.071 by a pseudo-second-order kinetic model, and thus low energy consumption value per desalinating ion (33.17 kJ mol⁻¹) during the adsorption process.

电容去离子（CDI）近年来因其简单的节能和环保脱盐工艺而备受关注。在电容去离子研究中，活性材料的有限制造规模和提高脱盐效率已成为主要挑战。在此，以克级生产（每一次> 1.0 g）的方式制造了具有高表面积（1492.8 m ²  g ^-1）的微介孔三维石墨烯（MMM-3DG ）作为有效的活性材料。 CDI。MMM-3DG表现出高电吸附容量（9.37 mg g ^-1）和快速电吸附速率（2.79 mg g ^-1 min ^-1）。此外，MMM-3DG通过拟二阶动力学模型提供了出色的速率常数0.071，因此在吸附过程中每个脱盐离子的能量消耗值较低（33.17 kJ mol ^-1）。