Surface wettability switching of a zeolitic imidazolate framework mesh via surface ligand exchange for oil-water separation. (March 2019)

• Record Type: Journal Article
• Authors: Du, Xinxin; Fan, Lili; Zhang, Minghui; Kang, Zixi; Fan, Weidong; Wen, Meilian; Zhang, Yuming; Li, Mengfei; Wang, Rongming; Sun, Daofeng
• Is Part Of: Materials research bulletin. Volume 111(2019)
• Page Start: 301
• Page End: 305
• Publication Date: 2019-03
• Subjects: Metal-organic framework -- ZIF-8 -- Ligand exchange -- Oil-water separation -- Surface wettability switching; Materials -- Periodicals; Crystal growth -- Periodicals; Matériaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Crystal growth; Materials; Periodicals; 620.11
• DOI: 10.1016/j.materresbull.2018.11.037
• Languages: English
• ISSNs: 0025-5408

Abstract

Graphical abstract: In this work, the surface wettability of a zeolitic imidazolate framework (ZIF-8) mesh is successfully switched from hydrophilicity to hydrophobicity by surface ligand exchange for efficient separation of oil-water mixtures. Abstract: The surface wettability of a zeolitic imidazolate framework (ZIF-8) mesh was successfully switched from hydrophilicity to hydrophobicity via surface ligand exchange aiming for oil-water separation for the first time. The ZIF-8 mesh after ligand exchange (ZIF-8-SLE mesh) exhibits superhydrophobicity that selectively allows the oil permeation, contrary to ZIF-8 mesh that only allows water to pass through. The high separation performance and recyclability of ZIF-8-SLE mesh show the great potential of this method in fabricating new MOF meshes, films or membranes for future practical oil-water related separations.