Construction of hydrophilic covalent organic frameworks and their fast and efficient adsorption of cationic dyes from aqueous solution

Wang, Zheng; Li, Anran; Wang, Xiuwen; Li, Zhigang; Zhao, Bing; Wang, Liyan; Kan, Wei; Sun, Li; Qi, Xin

doi:10.1039/d2nj04336j

Cited by 8 publications

(1 citation statement)

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“…5 Among them, adsorption is the most commonly practiced method due to its ease of operation, environmental friendliness, and good reproducibility in removal processes. 6,7 In adsorption techniques, diverse categories of adsorbents have been utilized and developed to achieve highly efficient adsorption of the desired organic dyes. Among many kinds of adsorbents, carbon-based nanomaterials such as carbon dots (CDs), carbon nanotubes, carbon nanofibers, graphene and its derivatives form a new adsorbent family.…”

Section: Introductionmentioning

confidence: 99%

Carbon dots/silica nanoaggregates for highly efficient adsorption of alizarin red S and malachite green dyes

Wang

Xue

et al. 2023

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Carbon dots/silica nanoaggregates for highly efficient adsorption of alizarin red S and malachite green dyes

Wang

Xue

et al. 2023

New J. Chem.

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Benzotrithiophene‐sulfonate covalent‐organic frameworks: Supramolecular proton pumps for high‐rate aqueous zinc‐ion energy storage systems

Peng,

Montes‐García,

Jiang

et al. 2024

SmartMat

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Proton chemistry is becoming a focal point in the development of zinc‐ion energy storage devices due to its swift H+ insertion/extraction kinetics. This characteristic feature confers to electrodes a remarkable power density, rate capability, and prolonged cycling durability. However, the storage mechanism of H+ in electrodes based on covalent‐organic frameworks (COFs) has not been thoroughly investigated. In this work, we introduce an unprecedented concept involving a supramolecular approach based on the design of a benzotrithiophene‐sulfonate COF (COF‐BTT‐SO3H) with remarkable storage capacity for simultaneous insertion and extraction of H+ and Zn2+. The ad hoc positioning of the ‐SO3H groups within the COF‐BTT‐SO3H structure facilitates the formation of a robust H‐bonded network. Through density functional theory calculations and employing in situ and ex situ analyses, we demonstrate that this network functions as a spontaneous proton ion pump leading to enhanced ion‐diffusion kinetics and exceptional rate performance in zinc‐ion energy storage devices. COF‐BTT‐SO3H reveals a high capacity of 294.7 mAh/g (0.1 A/g), a remarkable maximum energy density of 182.5 Wh/kg, and power density of 14.8 kW/kg, which are superior to most of the reported COF‐based electrodes or other organic and inorganic electrode materials in Zn2+ energy storage devices.

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MOF-5 anchored polymer@carbon core–shell nanofibers for efficient removal of chlortetracycline from aqueous solution

Li,

Teng,

Jia

et al. 2024

Applied Surface Science

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Construction of hydrophilic covalent organic frameworks and their fast and efficient adsorption of cationic dyes from aqueous solution

Abstract: Research about the functionalized covalent organic framework (COF) materials with well hydrophilic characteristics is significant on account of their application in the removal of dyes in wastewater. In this work,...

Cited by 8 publications

References 50 publications

Carbon dots/silica nanoaggregates for highly efficient adsorption of alizarin red S and malachite green dyes

Carbon dots/silica nanoaggregates for highly efficient adsorption of alizarin red S and malachite green dyes

Benzotrithiophene‐sulfonate covalent‐organic frameworks: Supramolecular proton pumps for high‐rate aqueous zinc‐ion energy storage systems

MOF-5 anchored polymer@carbon core–shell nanofibers for efficient removal of chlortetracycline from aqueous solution

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