Porous Covalent Organic Gels: Design, Synthesis and Fluoroquinolones Adsorption. Issue 48 (21st December 2018)

• Record Type: Journal Article
• Authors: Dong, Jun; Xu, Fei‐Fan; Liu, Zhi; Yu, Hai‐Yang; Yan, Yan; Li, Yang‐Xue
• Is Part Of: ChemistrySelect. Volume 3:Issue 48(2018)
• Page Start: 13624
• Page End: 13628
• Publication Date: 2018-12-21
• Subjects: C3-symmetric monomer -- covalent organic gels -- hydrogen-bonding -- fluoroquinolone -- adsorption; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201803079
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: We report the design and synthesis of three highly stable and porous covalent organic gels (HC OGs) based on C3 ‐symmetric benzene‐1, 3, 5‐tricarbohydrazides. The resultant HC OGs beared excellent adsorption properties and represented good reusability towards fluoroquinolones from aqueous solutions. The external adsorption behavior as well as internal mechanisms were both discussed. Using kinetic and isotherm analysis, we found that the adsorption processes of the three HC OGs keep to the pseudo‐second order kinetic model and abide by the Langmuir isotherm model. Furthermore, the adsorption efficiency and maximum adsorption capacity were demonstrated to be as a result of the internal mechanisms involving proper poriness, electrostatic interactivity, hydrophobic interaction, π‐π stacking/interactions and hydrogen bonding. The work thus pays a new way for the preparation of novel porous materials for removing fluoroquinolones from wastewater. Abstract : A series of highly stable and porous covalent organic gels (HC OGs) based on C3 ‐symmetric benzene‐1, 3, 5‐tricarbohydrazides have been synthesized for fluoroquinolone antibiotics adsorption from aqueous solutions. The adsorption processes of the three HC OGs obeyed the pseudo‐second order kinetic model and the Langmuir isotherm model. Furthermore, the adsorption mechanisms were demonstrated to involve proper poriness, electrostatic interactivity, hydrophobic interaction, π‐π stacking/interactions and hydrogen bonding. The work thus pays a new way for the preparation of novel porous materials for removing fluoroquinolones from wastewater.