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

Jian Liu; Yanmei Yang; Jingwei Bai; Huang Wen; Fengjuan Chen; Baodui Wang

doi:10.1021/acs.analchem.8b00239

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

Anal Chem. 2018 Mar 6;90(5):3621-3627. doi: 10.1021/acs.analchem.8b00239. Epub 2018 Feb 23.

Authors

Jian Liu¹, Yanmei Yang¹, Jingwei Bai¹, Huang Wen¹, Fengjuan Chen¹, Baodui Wang¹

Affiliation

¹ State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province , Lanzhou University , Lanzhou 730000 , P. R. China.

PMID: 29446622
DOI: 10.1021/acs.analchem.8b00239

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't