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Zhang L, Huang L, Wu S, Xu X, Bao J, Shen B, Zhang L, Hou Y, Jin L, Chen T, Yang Z, Lee M, Ji H, Huang Z. Two-Dimensional Cationic Networks and Their Spherical Curvature with Tunable Opening-Closing. NANO LETTERS 2019; 19:9131-9137. [PMID: 31769992 DOI: 10.1021/acs.nanolett.9b04421] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Despite many cationic nanomaterials that have been developed for efficient adsorption of anionic pollutants, tailoring a stable shape with denser cations on the surface for advanced removal capability remains challenging. Here, a new strategy is presented for fabricating two-dimensional (2D) cationic laminas and their curvature based on cross-linking of 2D supramolecular networks from hydrogen-bonded trimesic amide derivatives. Owing to the distribution of most cations on the surface, two cationic nanostructures from cross-linking of supramolecular networks show fast sorption kinetics for anionic pollutants. Notably, the removal capacity of the capsule-like curvature adsorbent is more than twice that of lamina adsorbent for sufficient space around cationic sites in hollow aperture. Moreover, the capsule-like adsorbent is triggered to open and spontaneously release the adsorbed pollutants upon the addition of halogen anions, which can be recovered by subsequent dialysis. Strategy of a capsule-like pocket with tunable opening-closing will provide a new insight for storage and adsorption.
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Affiliation(s)
- Lingling Zhang
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Liping Huang
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Shanshan Wu
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Xin Xu
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Junhui Bao
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Bowen Shen
- State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
| | - Liwei Zhang
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Yu Hou
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Longyi Jin
- Department of Chemistry, College of Science and the Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules , Yanbian University , Yanji 133002 , P.R. China
| | - Tie Chen
- Department of Chemistry, College of Science and the Key Laboratory for Organism Resources of the Changbai Mountain and Functional Molecules , Yanbian University , Yanji 133002 , P.R. China
| | - Zujin Yang
- Fine Chemical Industry Research Institute, School of Chemical Engineering and Technology , Sun Yat-sen University , Zhuhai 519082 , P.R. China
| | - Myongsoo Lee
- State Key Laboratory for Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
| | - Hongbing Ji
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
| | - Zhegang Huang
- Fine Chemical Industry Research Institute, PCFM and LIFM Lab, School of Chemistry , Sun Yat-sen University , Guangzhou 510275 , P.R. China
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