MOF Derived Co−Fe nitrogen doped graphite carbon@crosslinked magnetic chitosan Micro−nanoreactor for environmental applications: Synergy enhancement effect of adsorption−PMS activation

作者：Aiwen Wang, Jiaxin Ni, Wei Wang, Dongmei Liu, Qi Zhu, Binxia Xue, Chein‐Chi Chang, Jun Ma, Ying Zhao · 发表于：Applied Catalysis B: Environmental · 年份：2022 · DOI：10.1016/j.apcatb.2022.121926 · 被引用次数：296 · 研究领域：Advanced Photocatalysis Techniques、Advanced oxidation water treatment、Advanced Nanomaterials in Catalysis

Adsorption, as a simple and efficient water treatment technology, faces the problem that it can only transfer but not fully mineralize pollutants. Transition metal activated peroxymonosulfate (PMS) exhibit high catalytic activity, but leakage of metal ions poses potential health risks to the environment. To solve these problems, we ingeniously designed a micro−nanoreactor structure with glutaraldehyde crosslinked chitosan as the backbone and encapsulated MOF−derived Co−Fe nitrogen−doped graphitic carbon as the activated PMS reaction center (Co−Fe/NC@GCS). Due to its remarkable adsorption capacity, high concentration sulfamethoxazole could be efficiently enriched through electrostatic attraction and hydrogen bonding , and a small amount of PMS could be rapidly attracted and activated. Meanwhile, the synergistic mechanism of adsorption−PMS activation was also analyzed, and the degradation pathway of sulfamethoxazole was expounded. This study aims to develop a new strategy for the removal of emerging organic pollutants in water with such a system with strong adsorption and catalytic capabilities.