<i>In situ</i> synthesis of a GO/COFs composite with enhanced adsorption performance for organic pollutants in water

Li, Liang; Jia, Chen; Chen, Xuwei; Wang, Jianhua; Qiu, Hongdeng

doi:10.1039/d1en01015h

Cited by 28 publications

(11 citation statements)

References 65 publications

(80 reference statements)

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“…TTA-DMTP-COF is synthesized by reaction of TTA and DMTP by Schiff base reaction, using o -dichlorobenzene/ethanol as a solvent and 6 M HAc as catalyst for 5 days at 120 °C (Figure ). We optimized the synthesis conditions (Figure S1).…”

Section: Resultsmentioning

confidence: 99%

Nanoporous N-Rich Covalent Organic Frameworks with High Specific Surface Area for Efficient Adsorption of Iodine and Methyl Iodide

She,

Wen,

Zhang

et al. 2023

ACS Appl. Nano Mater.

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With the rapid development of the nuclear industry, the effective treatment of radioactive iodine has become an urgent and challenging task. In this article, we synthesized a nanoporous nitrogen-rich covalent organic framework (TTA-DMTP-COF) with a specific surface area of up to 2332 m2/g for the adsorption of iodine (I2) and methyl iodide (CH3I). Adsorption experiments showed that TTA-DMTP-COF exhibited effective I2 and CH3I adsorption properties; the maximum adsorption capacity of I2 is as high as 2.59 g·g–1, and the maximum adsorption capacity of CH3I is 1.60 g·g–1. In addition, TTA-DMTP-COF can effectively adsorb iodine from an iodine–cyclohexane solution, and the adsorption amount is as high as 516.46 mg/g. Mechanistic studies have shown that I2 and CH3I enter the nanopores of COF materials and form charge transfer complexes with various functional groups in TTA-DMTP-COF (including imines, triazine moieties, and residual amino groups). The N-methylation reaction specifically binds CH3I to the nucleophilic N site and generates polyiodides during the adsorption process. Our work demonstrates that TTA-DMTP-COF is an excellent candidate material capable of capturing radioactive iodine from air and solution in harsh environments.

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Section: Resultsmentioning

confidence: 99%

Nanoporous N-Rich Covalent Organic Frameworks with High Specific Surface Area for Efficient Adsorption of Iodine and Methyl Iodide

She,

Wen,

Zhang

et al. 2023

ACS Appl. Nano Mater.

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“…At present, graphene oxide (GO) have been used as ideal carriers for nanosheets or nanoparticles due to their huge specific surface area and excellent electronic conductivity. [34][35][36][37][38] GO can be easily mixed with different polymers and other materials, because of their narrow band gap and good electrical conductivity, which can enhance the conductivity of the composites, effectively accelerate the photogenerated electron-hole separation and broaden the photon absorption region. Jin et al used a Ti-based MOF (MIL-125) to closely hybridize with GO to enhance its catalytic performance, prepared a series of GO/MIL-125 with different pore structures, and studied the relationship between the pore structure of MIL-125 and the catalytic activity of the composite relation.…”

Section: Introductionmentioning

confidence: 99%

Enhanced adsorption and synergistic photocatalytic degradation of tetracycline by MOF-801/GO composites via solvothermal synthesis

Chen

et al. 2022

Environ. Sci.: Nano

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“…Carbon material including graphene, carbon nanotubes (CNTs), graphene oxide (GO), carbon dots (CDs), and other categories with outstanding physical and chemical characteristics combined with COFs are used for supercapacitor, [124] rechargeable batteries, [125] biomedicine, [126] and so on. [127][128][129][130][131][132][133]…”

Section:  Cofs-carbon Compositesmentioning

confidence: 99%

Composite materials based on covalent organic frameworks for multiple advanced applications

Chen

Wang

et al. 2023

Exploration

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Covalent organic frameworks (COFs) stand for a class of emerging crystalline porous organic materials, which are ingeniously constructed with organic units through strong covalent bonds. Their excellent design capabilities, and uniform and tunable pore structure make them potential materials for various applications. With the continuous development of synthesis technique and nanoscience, COFs have been successfully combined with a variety of functional materials to form COFs‐based composites with superior performance than individual components. This paper offers an overview of the development of different types of COFs‐based composites reported so far, with particular focus on the applications of COFs‐based composites. Moreover, the challenges and future development prospects of COFs‐based composites are presented. We anticipate that the review will provide some inspiration for the further development of COFs‐based composites.

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In situ synthesis of a GO/COFs composite with enhanced adsorption performance for organic pollutants in water

Abstract: An in situ synthesis strategy was used to prepare a GO/COFs composite for the effective adsorption of organic pollutants from environmental water.

Cited by 28 publications

References 65 publications

Nanoporous N-Rich Covalent Organic Frameworks with High Specific Surface Area for Efficient Adsorption of Iodine and Methyl Iodide

Nanoporous N-Rich Covalent Organic Frameworks with High Specific Surface Area for Efficient Adsorption of Iodine and Methyl Iodide

Enhanced adsorption and synergistic photocatalytic degradation of tetracycline by MOF-801/GO composites via solvothermal synthesis

Composite materials based on covalent organic frameworks for multiple advanced applications

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