A novel interconnected hierarchically nitrogen-doped porous carbon (IHNPC) derived from metal-organic framework-based composites was obtained via a facile method and applied as a superior material for the capture of 17β-estradiol (E2) from aqueous solution. The adsorption kinetic and isotherm behaviors were well described by the pseudo-second-order and Langmuir models. Various thermodynamic parameters uncovered that E2 adsorption onto IHNPC was spontaneous and exothermic. Moreover, the adsorption rate of E2 by IHNPC didn’t decrease with increasing water salinity in the presence of electrolyte ions and humic acids. Naturally occurring aquatic particles can enhance (i.e., Al₂O₃), decrease (i.e., kaolin and SiO₂) or have no obvious effects (i.e., montmorillonite) on the adsorption rate of E2 by IHNPC. The high adsorption capacity and remarkable adsorption selectivity of IHNPC highlighted the application of IHNPC for the capture of E2 and provided understanding of the fate and transport of E2 in natural aquatic environments.

通过一种简便的方法获得了一种基于金属-有机骨架的复合材料的新型互连的分层氮掺杂多孔碳（IHNPC），并将其用作从水溶液中捕获17β-雌二醇（E2）的优良材料。吸附动力学和等温线行为由拟二阶模型和Langmuir模型很好地描述。各种热力学参数揭示了E2在IHNPC上的吸附是自发的并且是放热的。此外，在存在电解质离子和腐殖酸的情况下，IHNPC对E2的吸附率不会随着水盐度的增加而降低。天然存在的水生颗粒可以增强（即Al ₂ O ₃），减少（即高岭土和SiO _2））或对IHNPC对E2的吸附速率没有明显影响（即蒙脱石）。IHNPC的高吸附能力和出色的吸附选择性突出了IHNPC在捕获E2方面的应用，并提供了对E2在自然水生环境中的命运和运输的了解。