2D boehmite/mesoporous nanosphere composites with hierarchical ion transport for efficient capacitive deionization

Abstract

Mesoporous nanospheres coated with 2D boehmite nanosheets were synthesized. The hierarchical ion-transport networks within this engineered structure facilitate efficient Na⁺ transport. The optimized composite exhibits a high salt adsorption capacity (131.3 mg g⁻¹, 1.2 V) and good regenerative stability (93.5%). This work proposes an advancing interfacial engineering strategy for next-generation desalination technologies.