A critical review of covalent organic frameworks-based sorbents in extraction methods

Torabi, Elham; Mirzaei, Masoud; Bazargan, Maryam; Amiri, Amirhassan

doi:10.1016/j.aca.2022.340207

Cited by 77 publications

(26 citation statements)

References 300 publications

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“…However, various factors like pendant groups and bonds involved in COF formation (Table 1) are responsible for the separation performance of COF‐membranes, selection of COF affects most efficiency and potential membrane technology applications [47] . The most effective technique for developing COF membranes that are both acceptable, have good perm selectivity, and exhibit long‐term stability is to select COFs based on diverse combinations of properties [48] . The major characteristics of COFs for various COF‐ membranes are outlined below:…”

Section: Characteristics Of Cofs For Membrane Separationmentioning

confidence: 99%

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COF‐Molecular Sieving Membrane Fabrication and Applications for Dye Separation

Divya,

Jangir

2023

ChemistrySelect

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Covalent organic frameworks (COFs) distinguish themselves from conventional materials by their exceptional combination of characteristics, including a well‐defined crystalline structure, inherent porosity, substantial surface area, remarkable design flexibility, capacity for functionalization, and chemical tunability. These attributes collectively contribute to the distinctiveness and versatility of COFs compared to traditional materials. This opens up exciting possibilities for multiple applications including energy storage, sensing, gas extraction and catalysis. The extraordinary stability of COFs in aqueous solutions and under harsh climatic conditions opens up new applications for them, including water treatment. COFs are attractive materials for tackling water pollution concerns and expanding their applications in related fields as a result of their distinctive attributes, like remarkable adsorption ability and adjustable architectures. The use of COF membranes in effluent management can improve the elimination of harmful dyes, resulting in better water quality and environmental protection. The creation of COF‐based membranes is a significant step forward in the field of water filtration and shows great potential for solving the issues faced by industrial wastewater contamination. Many published techniques provide continuous COF‐based membranes that fully utilize COFs for separations. Performance and characterization of COF‐membranes can be arbitrated with the help of various analytical and spectroscopic methods. The present study marks the most important structural characteristics and functional design methodologies of COFs in the form of thin membranes for dye separation. A discussion on the characteristics of COFs responsible for membrane separation with their synthesis and characterizations has also been done. Various reported fabrication methods of COF based membranes for dye removal are discussed concisely.

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Section: Characteristics Of Cofs For Membrane Separationmentioning

confidence: 99%

“…[47] The most effective technique for developing COF membranes that are both acceptable, have good perm selectivity, and exhibit long-term stability is to select COFs based on diverse combinations of properties. [48] The major characteristics of COFs for various COF-membranes are outlined below:…”

Section: Characteristics Of Cofs For Membrane Separationmentioning

confidence: 99%

COF‐Molecular Sieving Membrane Fabrication and Applications for Dye Separation

Divya,

Jangir

2023

ChemistrySelect

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“…The use of magnetic adsorbents enables immediate separation of extracts and adsorbents without the need for centrifugation or filtration [10][11][12][13]. The choice of a suitable sorbent is crucial in the MSPE method [14,15]. Various waste materials remain largely underutilized and untransformed.…”

Section: Introductionmentioning

confidence: 99%

Green magnetic snail shell hydroxyapatite sorbent for reliable solid‐phase extraction of pesticides from water samples

Sghaier

Labidi

Abdallah

et al. 2023

J of Separation Science

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To address sustainability issues, the green synthesis of nanomaterials has recently received considerable attention. This article addresses a novel and cost‐effective adsorbent for the extraction of eight phenyl‐N‐methylcarbamate insecticides from water samples. We first synthesized a magnetite/hydroxyapatite nanocomposite using snail shell powder via an environmental friendly approach. The morphology and physicochemical properties of magnetic hydroxyapatite were characterized by Fourier transform infrared spectroscopy, energy‐dispersive X‐ray spectroscopy, and scanning electron microscopy. Magnetic extraction parameters were optimized using a Doehlert matrix. Under optimum conditions, the magnetic extraction coupled with a LC–MS method shows good linearity with R2 ≥ 0.9982, suitable intra‐ and interday precision, and limits of detection and quantification in the range of 0.052–0.093 μg/L and 0.11–0.31 μg/L, respectively. Satisfactory relative recoveries of all carbamates were achieved from fortified water samples in the range of 93.89–101.01%.

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“…Sample pretreatment is a crucial step in organic pollutant analysis in different matrices, as it plays a pivotal role in concentrating, purifying, and extracting target analytes from complex sample matrices. 3,4 Recent methods for the preparation of PAHs include solid-phase extraction (SPE), 5,6 solid-phase microextraction (SPME), 7 dispersive liquid-liquid microextraction (DLLME), 8 hollow-ber liquid-phase microextraction (HF-LPME), 9 stir bar sorptive extraction (SBSE), 10 and magnetic solid-phase extraction (MSPE). 11,12 MSPE is a typical method of SPE.…”

Section: Introductionmentioning

confidence: 99%