Following the light: 3D-printed COF@poly(2-hydroxyethyl methacrylate) dual emissive composite with response to polarity and acidity

Martínez-Fernández, Marcos; Gavara, Raquel; Royuela, Sergio; Fernández-Ecija, Laura; Martínez, José I.; Zamora, Félix; Segura, José L.

doi:10.1039/d1ta09614a

Cited by 21 publications

(10 citation statements)

References 79 publications

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“…In most cases, the as-prepared powder COFs were introduced into sol precursors and then integrated into polymeric networks via physical embedding or chemical covalent bonding during the formation of monolithic materials. Using this approach, powder COFs have been integrated into numerous polymer networks, including poly(TpPa-methacrylic anhydride- co -ethylene dimethacrylate), poly(2-hydroxyethyl methacrylate), PVA, , and poly(polyhedral oligomeric silsesquioxane epoxy/poly(ethylenimine)) . Compared to pure COF monoliths, the obtained COF composite monoliths inherited the advantages of the individual components, demonstrating some unique properties such as enhanced mechanical stability, strengthened adsorption performance, and customized pore size.…”

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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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 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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“…Another way to control size and shape of porous framework materials relies on surface chemistry and functionalization. Although many efforts have focused on seeded growth methods 25,26 or post-synthetic functionalization or processing methods, 28,[34][35][36] a more thorough understanding of colloidal COF surface chemistry could provide another means to control COF particle size. Indeed, recent reports have explored the surface chemistry of unreacted pendant amines at the surfaces of COF-300 colloids.…”

Section: Introductionmentioning

confidence: 99%

COF-300 synthesis and colloidal stabilization with substituted benzoic acids

Ji,

Kim,

Posson

et al. 2023

RSC Adv.

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“…In another example, 3D printing of exfoliated imine‐linked COF colloids has been achieved via suspension in a poly(2‐hydroxyethyl methacrylate) matrix. [ 30 ] However, this technique requires post‐deposition curing and washing over multiple days, similar to methods used to deposit patterned COF precursors ( Figure A). Previously, we established spray coating methods to incorporate colloidal boronate‐ester COFs into large‐area film devices for chemical sensing applications.…”

Section: Introductionmentioning

confidence: 99%

Aerosol‐Jet‐Printable Covalent Organic Framework Colloidal Inks and Temperature‐Sensitive Nanocomposite Films

et al. 2023

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With molecularly well‐defined and tailorable 2D structures, covalent organic frameworks (COFs) have emerged as leading material candidates for chemical sensing, storage, separation, and catalysis. In these contexts, the ability to directly and deterministically print COFs into arbitrary geometries will enable rapid optimization and deployment. However, previous attempts to print COFs have been restricted by low spatial resolution and/or post‐deposition polymerization that limits the range of compatible COFs. Here, these limitations are overcome with a pre‐synthesized, solution‐processable colloidal ink that enables aerosol jet printing of COFs with micron‐scale resolution. The ink formulation utilizes the low‐volatility solvent benzonitrile, which is critical to obtaining homogeneous printed COF film morphologies. This ink formulation is also compatible with other colloidal nanomaterials, thus facilitating the integration of COFs into printable nanocomposite films. As a proof‐of‐concept, boronate‐ester COFs are integrated with carbon nanotubes (CNTs) to form printable COF‐CNT nanocomposite films, in which the CNTs enhance charge transport and temperature sensing performance, ultimately resulting in high‐sensitivity temperature sensors that show electrical conductivity variation by 4 orders of magnitude between room temperature and 300 °C. Overall, this work establishes a flexible platform for COF additive manufacturing that will accelerate the incorporation of COFs into technologically significant applications.

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Following the light: 3D-printed COF@poly(2-hydroxyethyl methacrylate) dual emissive composite with response to polarity and acidity

Abstract: A new imine-based covalent organic framework (COF) functionalized in its cavities with moieties of the chromophore Nile Red has been synthesized and characterized. Using mechanical (ultrasonics) and chemical (acid-self-exfoliation) methods,...

Cited by 21 publications

References 79 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

COF-300 synthesis and colloidal stabilization with substituted benzoic acids

Aerosol‐Jet‐Printable Covalent Organic Framework Colloidal Inks and Temperature‐Sensitive Nanocomposite Films

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