Hyper-Cross-linked Porous MoS₂–Cyclodextrin-Polymer Frameworks: Durable Removal of Aromatic Phenolic Micropollutant from Water

A reasonable and efficient strategy for the construction of hyper-cross-linked porous MoS₂–CD-polymer frameworks (MoS₂CDPFs) was demonstrated. Here, MoS₂ nanosheets (NSs) can be decorated with amino functionalized β-cyclodextrin, producing a nanoscale structural motif (MoS₂@CD) for the synthesis of MoS₂CDPFs. We demonstrated that CD polymer (CDP) as linker can be uniformly incorporated into the frameworks. Except for the pores created between MoS₂ NSs, polymer doping generates extra interspace between MoS₂ NSs and CD monomer. Interestingly, the resultant MoS₂CDPFs can rapidly sequester aromatic phenolic micropollutant bisphenol A (0.1 mM) from water with 93.2% adsorption capacity, which is higher than that of MoS₂, MoS₂@CD, and CDP. The intercalation between MoS₂ sheets with CDP imparts the frameworks durability in adsorption/desorption of aromatic phenolic micropollutants. Remarkably, the removal efficiency reduced only 3% after 10 regeneration–reuse cycles. These findings demonstrated that the porous MoS₂–CD-polymer-based frameworks are promising adsorbents for rapid, flow-through water remediation