Development of efficient adsorbents for nitrate removal is vital for tackling increasing nitrate contamination. We report a free‐radical polymerization strategy to prepare a cationic surfactant‐modified covalent organic framework (DhaTab‐S) for ...
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https://www.riss.kr/link?id=O112768995
2020년
-
2192-6506
SCOPUS;SCIE
학술저널
828-831 [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Development of efficient adsorbents for nitrate removal is vital for tackling increasing nitrate contamination. We report a free‐radical polymerization strategy to prepare a cationic surfactant‐modified covalent organic framework (DhaTab‐S) for ...
Development of efficient adsorbents for nitrate removal is vital for tackling increasing nitrate contamination. We report a free‐radical polymerization strategy to prepare a cationic surfactant‐modified covalent organic framework (DhaTab‐S) for removing nitrate ions from aqueous solution. DhaTab‐S was prepared by grafting a cationic surfactant diallyldimethylammonium chloride solution on vinyl‐containing COF (DhaTab‐V). The adsorption capacity for nitrate was pH‐dependent with the maximum at pH 6, and the adsorption process was largely influenced by ionic strength. The adsorption equilibrium for nitrate on DhaTab‐S was reached within 40 minutes and followed pseudo‐second‐order kinetics. DhaTab‐S showed a nitrate adsorption capacity of 108.8 mg g−1, which is about 15 times that of COF before surfactant modification. The large adsorption capacity makes DhaTab‐S a promising candidate for nitrate removal from aqueous media.
Organic nitrate removal: A cationic‐surfactant‐modified covalent organic framework(COF), DhaTab‐S, was fabricated by free‐radical polymerization for removing nitrate from aqueous solution via electrostatic interaction. The nitrate adsorption capacity of DhaTab‐S is 108.8 mg g−1, which is about 15 times more than that of the COF before surfactant modification.
Cover Feature: (ChemPlusChem 5/2020)