https://scholars.lib.ntu.edu.tw/handle/123456789/611453
Title: | A flame-retardant post-synthetically functionalized COF sponge as absorbent for spilled oil recovery | Authors: | Liu Y. Lyu Q. Wang Z. Sun Y. Li C. Sun S. Lin L.-C. Hu S. LI-CHIANG LIN |
Keywords: | Absorption;Adsorbents;Ecosystems;Marine pollution;Oil spills;Solvents;Water treatment;Absorbent materials;Absorption capacity;Absorption mechanisms;Covalent organic frameworks;Flame retardancy;Functionalized;Molecular simulations;Rapid recovery;Driers (materials) | Issue Date: | 2021 | Journal Volume: | 56 | Journal Issue: | 23 | Start page/Pages: | 13031-13042 | Source: | Journal of Materials Science | Abstract: | Frequent oil spills pose severe damages to the marine ecosystems and result in hazardous fires when the spilled oil is ignited. Developing high-performance, flame-retardant absorbent materials for large-scale water treatment is therefore urgently needed. Herein, we report an efficient post-synthetic silylation process to achieve a porous covalent-organic framework (COF), denoted as [CF3] ? COF. The absorption capacity of oils and organic solvents in [CF3] ? COF was explored by experimental measurements with the absorption mechanism illuminated by molecular simulations. The prepared [CF3] ? COF powders were further loaded into melamine sponge to yield a highly hydrophobic absorbent denoted as [CF3] ? COF@sponge, which was demonstrated to effectively remove oils/organic solvents with outstanding stability and excellent flame retardancy. Moreover, an oil-collecting apparatus was designed to continuously separate oils/organic solvents from water. The rapid recovery of oils/organic solvents from water using this device proves the great promise of [CF3] ? COF@sponge in water treatment. ? 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106053353&doi=10.1007%2fs10853-021-06006-w&partnerID=40&md5=c2df8dea1fb07ee4fdb7945b450adab8 https://scholars.lib.ntu.edu.tw/handle/123456789/611453 |
DOI: | 10.1007/s10853-021-06006-w |
Appears in Collections: | 化學工程學系 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.