Unidirectional diffusion synthesis of covalent organic frameworks (COFs) on polymeric substrates for dye separation

Wang, Rui; Shi, Xiansong; Zhang, Zhe; Xiao, Ankang; Sun, Shi‐Peng; Cui, Zhaoliang; Wang, Yong

doi:10.1016/j.memsci.2019.05.082

Cited by 144 publications

(64 citation statements)

References 54 publications

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“…Desalination, OSN, and pervaporation which concern about salt rejection, organic solvent separation, and multicomponent liquid mixture separation will be listed as individual subsections in this section. Composites membranes such as mix matrix membranes (MMMs) [226][227][228] and thin film composites (TFC) [229][230][231] are major existing forms of the membranes, and defect-free freestanding film has also been explored. The main parameters for functional porous polymer-derived separation membranes, including the substrate membrane, preparation method, membrane thickness, permeance and rejection rates, are summarized in Table 3, which involves aqueous organic pollutants filtration, desalination, and OSN to provide an overall comparison of the membrane methodology.…”

Section: Membrane Separationmentioning

confidence: 99%

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Zheng

Lin

Zhang

et al. 2019

Adv Funct Materials

206

118

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The demand for practical and cost-effective environmental treatment and energy storage materials is exploding. Porous polymeric and carbonaceous materials have attracted tremendous interest on account of their welldeveloped porosity and tunable surface chemistry. Functionalization of pore structures further enhances their properties for environmental treatment and energy storage. Herein, the procedures for functionalization of porous structures are introduced, including predesign and postsynthetic strategies. Subsequently, the important advancements of emerging porous polymers for environmental treatment in sorption (e.g., organic micropollutant adsorption, heavy metal ion removal, radionuclide extraction, and oil absorption) and membrane separation (e.g., aqueous micropollutant separation, organic solvent nanofiltration, desalination and pervaporation), as well as for energy storage ranging from the electrodes and separators of batteries to supercapacitor electrodes are highlighted. Moreover, given the combined merits of high intrinsic conductivity, porosity, and physicochemical stability, novel polymer-based porous carbons for energy storage are also highlighted. Key functionalization chemistry for each application is discussed and an in-depth understanding of the structure-property relationships of these functional porous materials is provided. Finally, the challenges and perspectives of emerging functional porous polymeric and carbonaceous materials for environmental treatment and energy storage are proposed.

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Section: Membrane Separationmentioning

confidence: 99%

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Zheng

Lin

Zhang

et al. 2019

Adv Funct Materials

206

118

View full text Add to dashboard Cite

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“…This fact has strongly limited their applications to those in which inert or at least water‐free conditions are used [1] . Hopefully, imine‐based COFs are superior to those other COFs, and generally possess higher chemical stability [89] (including water and acid/base solutions) and greater crystallinity, making them a better option for applications such as water treatment, catalysis, gas adsorption, and sensors [90,91] …”

Section: Microwave‐assisted Synthesis Of 2d Cofsmentioning

confidence: 99%

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

et al. 2020

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Covalent organic frameworks (COFs) are relatively recent materials. They have received great attention due to their interesting properties. However, the application of microwaves in their synthesis, despite its advantages such as faster and more reproducible processes, is a minority. Herein, a comprehensive compilation of the research results published in the microwave‐assisted synthesis (MAS) of COFs is presented. This review includes articles of 2D and 3D COFs prepared using microwaves as source of energy. The articles have been classified depending on the functional groups including boronate ester, imines, enamines, azines, and triazines, among others. It compiles the main parameters of synthesis and characteristics of the materials together with some general issues related with COFs and microwaves. Additionally, current and future perspectives of the topic have been discussed.

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“…[3] During the last several decades, ordered porous materials such as zeolite, metal-organic frameworks (MOFs), and covalent organic frameworks (COFs) have been successfully prepared into membranes for efficient gas separation, which can exhibit superior gas permeability and selectivity simultaneously. [4][5][6][7][8][9] However, this type of polycrystalline membranes are usually prepared via hydrothermal or solvothermal methods, which are challenging for scale-up, compared to the solution processing of polymer. Mixed-matrix membranes composed of polymers and inorganic microporous fillers are therefore under intensive study today, [10] while the issues of interfacial gaps and inhomogeneous dispersion still needs to be solved.…”

mentioning

confidence: 99%

Fabrication of a Hydrogen‐Bonded Organic Framework Membrane through Solution Processing for Pressure‐Regulated Gas Separation

et al. 2020

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Ordered and flexible porous frameworks with solution processability are highly desirable to fabricate continuous and large‐scale membranes for the efficient gas separation. Herein, the first microporous hydrogen‐bonded organic framework (HOF) membrane has been fabricated by an optimized solution‐processing technique. The framework exhibits the superior stability because of the abundant hydrogen bonds and strong π–π interactions. Thanks to the flexible HOF structure, the membrane possesses the unprecedented pressure‐responsive H2/N2 separation performance. Furthermore, the scratched membrane can be healed by the treatment of solvent vapor, achieving the recovery of separation performance.

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Unidirectional diffusion synthesis of covalent organic frameworks (COFs) on polymeric substrates for dye separation

Cited by 144 publications

References 54 publications

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Emerging Functional Porous Polymeric and Carbonaceous Materials for Environmental Treatment and Energy Storage

Microwave‐Assisted Synthesis of Covalent Organic Frameworks: A Review

Fabrication of a Hydrogen‐Bonded Organic Framework Membrane through Solution Processing for Pressure‐Regulated Gas Separation

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