Facile fabrication of hierarchically porous melamine foam@COF composite for sample treatment of non-targeted food safety analysis and oil/water separation

Li, Wei; Jin, Wei-Liang; Jiang, Haiyan; Wang, Rui; Jia, Hao; Liu, Jing-Qi; Tang, An‐Na; Zhu, Lina; Kong, De‐Ming

doi:10.1016/j.cej.2022.140900

Cited by 35 publications

(5 citation statements)

References 37 publications

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“…46 Considering this issue, in situ growth of a layer of COFs on a porous substrate surface provides an alternative solution. 96,97 Owing to the rapid development of material science, there is no doubt that many new types of monolithic COFs will be developed in the following years.…”

Section: Synthesis Of Monoliths Based On Cof Compositesmentioning

confidence: 99%

“…In general, compared to monolithic COF composites, the monolithic materials based on pure COFs, especially COF aerogels, exhibit high large surface areas due to the absence of an external binder, which will block the pores of pristine COFs during the post-cross-linking procedure . Considering this issue, in situ growth of a layer of COFs on a porous substrate surface provides an alternative solution. , Owing to the rapid development of material science, there is no doubt that many new types of monolithic COFs will be developed in the following years.…”

Section: Synthesis Of Monolithic Cofs With Hierarchical Structurementioning

confidence: 99%

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Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

et al. 2023

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The insolubility in solvents and poor processability of powder covalent organic frameworks (COFs) considerably impede their practical application. To address these issues and bridge the gap between powder COFs and their practical application, the construction of monolithic COFs has emerged as a feasible and effective solution. Monolithic COFs (i.e., macroscopic three-dimensional architectures) with hierarchical structures have attracted tremendous interest for environmental remediation and exhibited good contaminant removal performances owing to their wide distribution of pore sizes ranging from micropores to macropores, large specific surface area, tailored chemical components, and excellent chemical stability. Monolithic COFs can be either pure COFs with self-supporting structures or composites of COFs with other materials. The resulting COF-based monoliths inherit the merits of the parent powder COFs (such as tunable pore size, tailored structure, and super chemical/thermal stability) and the intriguing features of monolithic materials, such as hierarchical structure, high porosity, and easy handling, endowing them with fast mass transfer and high adsorption capacity. This review provides a comprehensive summary of the recent advances in the synthesis of monolithic COF materials. Additionally, the recent progress of their application in environmental remediation is summarized, including metal-ion removal, organic-pollutant capture, and oil–water separation. Furthermore, this review discusses the current challenges and provides future perspectives. We sincerely hope that it will contribute to the further development of COF-based materials in other fields, especially environmental remediation.

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Section: Synthesis Of Monoliths Based On Cof Compositesmentioning

confidence: 99%

Section: Synthesis Of Monolithic Cofs With Hierarchical Structurementioning

confidence: 99%

Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

et al. 2023

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“…Notably, the capabilities of ionic liquids vary based on the type of anions they contain ( Wei et al, 2013 ; Kumar and Kaur, 2021 ). In a different domain, melamine, a nitrogen-rich and versatile organic compound, finds application in various chemistry areas such as polymerization ( Pedroso et al, 2005 ), production of Schiff bases ( Schwab et al, 2009 ; Suo et al, 2018 ), resins ( Li and Xue, 2014 ), covalent organic frameworks ( Li et al, 2023 ), and carbon nitrides ( Khan et al, 2019 ; Ashouri et al, 2023 ). Melamine exhibits vibrant nucleophilic properties and swiftly transforms into an ionic compound when exposed to active acids (Liu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Melamine phosphate-modified magnetic chitosan: a novel biocompatible catalyst for the synthesis of biological tetrahydrodipyrazolopyridine and pyrazolopyranopyrimidine derivatives

Mousavi-Ebadi,

Safaei-Ghomi

2024

Front. Chem.

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A novel biocompatible composite was fabricated by the functionalization of magnetic chitosan with the melamine phosphate (MP) ionic compound to serve as a recoverable and bifunctional catalyst, aiming at the diversity-oriented generation of biological tetrahydropyrazolopyridine and pyrazolopyrimidine derivatives. This involved a meticulously orchestrated reaction, exploiting the in situ generated pyrazole alongside aromatic aldehydes, ammonium acetate, and (thio) barbituric acid. The present work manifests outstanding advantages, offering a novel and great method for the optimal synthesis of two valuable heterocyclic series especially five new derivatives. The resulting novel biocompatible composite was comprehensively characterized through a range of analytical techniques, including FT-IR, NH3 and CO2-TPD, XRD, TEM, FE-SEM, VSM, EDX, elemental CHNS analysis, ICP-MS, and NMR spectroscopy. Notably, the study represents a critical step in the preparation of advanced materials from accessible and cost-effective precursors.

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“…[7,8] It has been shown that materials with hierarchical pores exhibit higher oil absorption and retention capacity, faster oil adsorption rate and superior oil-water separation properties compared to single pore size materials. [1,[9][10][11][12] In stepped pore materials, the primary pore structure provided grand channels and more liquid contact area, while the secondary pore acted as channels through the substrate on the one hand to confer higher pore volume, and on the other hand increased the accessibility of the pores to significantly accelerate the adsorption kinetics.…”

Section: Introductionmentioning

confidence: 99%

3D Printing of Hierarchically Porous Polyetherimide for Enhanced Oil Adsorption and Oil/Water Separation via Supercritical CO₂ Foaming

Sun,

Guo,

Wang

et al. 2024

Adv Materials Technologies

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Most mechanical oil leaks and industrial oily wastewater are in complex and harsh environments. Hence, developing a simple and efficient method to store oil or separating oil–water contaminants has become an ongoing challenge. Hierarchically porous polyetheimide (HPPEI) is a promising competitive candidate due to the combination of functional designability, featuring multilayer pores, and the excellent properties of PEI. Herein, HPPEI (micro‐ and nano‐) is developed by fused deposition modeling (FDM) printing, which enables customizable uniform pores, and green and cost‐effective supercritical CO2 foaming method. HPPEI exhibits remarkable oil content and oil adsorption rate, attributed to the nanopores functioning as “windows.” Nanopores alter the adsorption mode from the “individual adsorption” of PPEI to “interconnected adsorption,” accompanied by an increased storage capacity, and enhanced the overall adsorption rate due to strong capillary effect and higher adsorption rate. HPPEI modified with hydrophobic nano fumed silica (HN─SiO2), demonstrates outstanding hydrophobicity and lipophilicity features selective oil adsorption and oil–water separation, and retains excellent hydrophobic even at high temperatures and in acidic and alkaline environments. This material is expected to provide a strategy for energy conservation: selective oil adsorption from oily wastewater in harsh environments and then the oily material is utilized for lubrication areas, avoiding material waste.

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Facile fabrication of hierarchically porous melamine foam@COF composite for sample treatment of non-targeted food safety analysis and oil/water separation

Cited by 35 publications

References 37 publications

Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

Melamine phosphate-modified magnetic chitosan: a novel biocompatible catalyst for the synthesis of biological tetrahydrodipyrazolopyridine and pyrazolopyranopyrimidine derivatives

3D Printing of Hierarchically Porous Polyetherimide for Enhanced Oil Adsorption and Oil/Water Separation via Supercritical CO₂ Foaming

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Facile fabrication of hierarchically porous melamine foam@COF composite for sample treatment of non-targeted food safety analysis and oil/water separation

Cited by 35 publications

References 37 publications

Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

Monolithic Covalent Organic Frameworks with Hierarchical Architecture: Attractive Platform for Contaminant Remediation

Melamine phosphate-modified magnetic chitosan: a novel biocompatible catalyst for the synthesis of biological tetrahydrodipyrazolopyridine and pyrazolopyranopyrimidine derivatives

3D Printing of Hierarchically Porous Polyetherimide for Enhanced Oil Adsorption and Oil/Water Separation via Supercritical CO2 Foaming

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Product

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3D Printing of Hierarchically Porous Polyetherimide for Enhanced Oil Adsorption and Oil/Water Separation via Supercritical CO₂ Foaming