Thiol-ene polymer beads <i>via</i> liquid–liquid printing: armored interfaces and photopolymerization <i>via</i> graphitic carbon nitride

Esen, Cansu; Kumru, Baris

doi:10.1039/d2na00254j

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…In previous reports, g-CN/Thiol−ene beads are noted as not photocatalytically active since g-CN formed interfacial complexation, resulting in no photocatalytic activity. 32 In our case, a porous thiol−ene bead structure decorated with g-CN elucidated photocatalytic activity, albeit lower than that of PIL-based beads. This indicates that g-CN produces electrons regardless of the matrix, although only in a conductive matrix does the electron−hole pair have a sufficiently long lifetime to perform reactions, supporting the hypothesis that a conductive matrix is essential for high catalytic activity.…”

Section: Photocatalytic Dye Degradationmentioning

confidence: 56%

“…It is clear that g-CN/PIL has improved degradation rate and kinetics, whereas g-CN/Thiol–ene shows lower photocatalytic activity. In previous reports, g-CN/Thiol–ene beads are noted as not photocatalytically active since g-CN formed interfacial complexation, resulting in no photocatalytic activity . In our case, a porous thiol–ene bead structure decorated with g-CN elucidated photocatalytic activity, albeit lower than that of PIL-based beads.…”

Section: Resultsmentioning

confidence: 99%

“…The g-CN/PIL beads are fabricated using interfacial toughening in a liquid–liquid printing technique derived from previous research. , An overview of these steps to make the g-CN/PIL beads is shown in Figure . Initially, 10 mg of g-CN is dispersed in 1 mL of chloroform.…”

Section: Methodsmentioning

confidence: 99%

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Liquid–Liquid-Printed Graphitic Carbon Nitride-Embedded Porous Poly(ionic liquid) Beads as Highly Active Reusable Heterogenous Photocatalysts

Meijer,

Bazyar,

Kumru

2024

ACS Appl. Eng. Mater.

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In this study, we report the synthesis of photocatalytically active composite beads by incorporating graphitic carbon nitride (g-CN) into a poly(ionic liquid) (PIL) matrix. Characterization of these composite beads revealed a highly porous surface structure, with g-CN uniformly embedded throughout the matrix. We assessed the photocatalytic performance of these beads using a thiol−ene click reaction, photocatalytic dye degradation, and hydrogen evolution reactions. Our findings clearly demonstrate the significant enhancement in photocatalytic activity attributable to the poly(ionic ligand) matrix, surpassing the performance of nonionic polymer matrices. This work highlights the potential of g-CN/PIL composite beads as reusable efficient photocatalytic materials for diverse applications such as hydrogen evolution, dye degradation, and selective organic reactions.

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Section: Photocatalytic Dye Degradationmentioning

confidence: 56%

Section: Resultsmentioning

confidence: 99%

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Liquid–Liquid-Printed Graphitic Carbon Nitride-Embedded Porous Poly(ionic liquid) Beads as Highly Active Reusable Heterogenous Photocatalysts

Meijer,

Bazyar,

Kumru

2024

ACS Appl. Eng. Mater.

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“…This highlights the importance of light and solvent accessible porosity as a key driving factor to achieve functioning photoactive composites (Table 4). 127 ■ CONCLUSIONS When one hunts a structural stability against solvent, temperature, pH, etc., cross-linked polymer networks can offer desirable properties. Over 100 years of polymer science, some of the industrial processes that benefit humankind rely on the utilization of cross-linked polymer systems.…”

Section: ■ Resinsmentioning

confidence: 99%

Photocatalyst-Incorporated Cross-Linked Porous Polymer Networks

Esen

Kumru

2022

Ind. Eng. Chem. Res.

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The utilization of sunlight to conduct chemistry has been on a stark rise in the era of sustainability. A similar trend is observed in polymer science, mainly to initiate polymerization and modify polymer materials, but mostly relying on the utilization of soluble initiator/activator molecules. Semiconductors, on the other hand, grant a platform for "photoredox" induced chemical pathways, so that reductive and oxidative reactions (as well as radical formation) can be tailored according to band positions. Despite their utilization as dispersed or dissolved phases, immobilization of semiconductors on macroscale solid surfaces is attractive to entail scale-up options. In this Review, semiconductors incorporated in cross-linked porous polymer networks will be summarized both from synthesis and application perspectives.

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Binaphthyl Mediated Low Temperature Synthesis of Carbon Nitride Photocatalyst for Photocatalytic Hydrogen Evolution

Baluchová,

Zoltowska,

Giusto

et al. 2024

ChemSusChem

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Metal‐free graphitic carbon nitrides are on the rise as polymer photocatalysts under visible light illumination, taking shares in a range of promising photocatalytic reactions, including water splitting. Their simple synthesis and facile structural modification afford them exceptional tunability, enabling the creation of photocatalysts with distinct properties. While their metal‐free nature marks a significant step towards environmental sustainability, the high energy consumption required to produce carbon nitride photocatalysts remains a substantial barrier to their widespread adoption. Furthermore, the process of condensation at approximately 550°C typically results in solid yields of less than 15%, significantly challenging their economic viability. Here, we report on lowering manufacturing conditions of carbon nitride photocatalysts whilst enhancing photocatalytic activity by introducing binaphthyl diamine as a structural mediator. At 450°C in 2 hours, carbon nitride photocatalyst shows a lower bandgap and enables visible light induced hydrogen evolution (194 µmol h‐1) comparable to benchmark carbon nitride photocatalysts.

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Thiol-ene polymer beads via liquid–liquid printing: armored interfaces and photopolymerization via graphitic carbon nitride

Abstract: Polymerization of multifunctional thiol-ene molecules are attractive as a proof of concept in photopolymerization, yet formation of bead structure is highly restricted. This manuscript will exhibit graphitic carbon nitride based...

Cited by 6 publications

References 41 publications

Liquid–Liquid-Printed Graphitic Carbon Nitride-Embedded Porous Poly(ionic liquid) Beads as Highly Active Reusable Heterogenous Photocatalysts

Liquid–Liquid-Printed Graphitic Carbon Nitride-Embedded Porous Poly(ionic liquid) Beads as Highly Active Reusable Heterogenous Photocatalysts

Photocatalyst-Incorporated Cross-Linked Porous Polymer Networks

Binaphthyl Mediated Low Temperature Synthesis of Carbon Nitride Photocatalyst for Photocatalytic Hydrogen Evolution

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