Facile assembly of a graphitic carbon nitride film at an air/water interface for photoelectrochemical NADH regeneration

Jia, Chenglong; Hu, Wenjuan; Zhang, Yuanyuan; Teng, Chao; Chen, Zupeng; Liu, Jian

doi:10.1039/d0qi00182a

Cited by 26 publications

(24 citation statements)

References 65 publications

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“…By further processing the conjugated polymer powder into the film photoelectrode, [ 97 ] the photoelectrochemical NADH could be realized with H 2 O as the electron source by applying the external bias. [ 63 ] The conjugated polymer film electrode will act as the photocathode in the cathode compartment for further coupling the enzymatic catalysis. The oxygen evolving electrode will be separated from the cathode to avoid the direct contact of enzyme and oxygen for enhancing the stability and sustainability of the system.…”

Section: Discussionmentioning

confidence: 99%

“…For further application, the film was transferred onto fluorine‐doped tin oxide (FTO) forming a film electrode (CN‐Gr/FTO) for photoelectrochemical NADH regeneration. [ 63 ] With [Cp * Rh(bpy)(H 2 O)] 2+ as electron mediator and water as electron donor, the regeneration yield of NADH using CN‐Gr/FTO catalyst is twice higher than that of g‐C 3 N 4 membrane alone. The work provides a new way for facile preparation of high‐quality g‐C 3 N 4 hybrid film with enhanced conductivity and improved electron–hole separation efficiency.…”

Section: G‐c3n4‐based Photocatalystsmentioning

confidence: 99%

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Bioinspired NADH Regeneration Based on Conjugated Photocatalytic Systems

et al. 2020

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Cofactors, such as nicotinamide adenine dinucleotide (NADH) or its phosphorylated derivative (NADPH), are playing essential roles in redox enzymatic catalysis because of their indispensable roles as biological hydride sources. However, due to its stoichiometric consumption, economic and efficient regeneration for NADH is of great importance for both in vivo and in vitro applications. Inspired by natural photosynthesis, photocatalytic NADH regeneration has drawn increasing attention, resulting from its mild reaction conditions and excellent biocompatibility with enzymes. Currently, various heterogeneous photocatalysts, such as conjugated small molecules, graphitic carbon nitride, carbon‐based materials, and organic polymers, are reported as promising candidates for photocatalytic NADH regeneration due to their outstanding advantages of low cost, high chemical stability, limited toxicity, and molecularly tunable optoelectronic properties. Herein, the key advances of conjugated photocatalytic systems for NADH regeneration are summarized, accompanied with their strengths and limitations. Finally, an outlook is tentatively attempted about the further developments of conjugated polymers–based NADH regeneration as well as integrated photoenzymatic catalysis.

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Section: Discussionmentioning

confidence: 99%

Section: G‐c3n4‐based Photocatalystsmentioning

confidence: 99%

Bioinspired NADH Regeneration Based on Conjugated Photocatalytic Systems

et al. 2020

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“…Experimentally, g-C 3 N 4 powder was reported to be exfoliated by a liquid-exfoliation method upon sonication. Beyond that, many other exfoliation methods, including the thermal-oxidation route, , ionic liquid-assisted method, gas exfoliation, mechanical and chemical exfoliation, and wet ball-milling method, have been utilized to exfoliate g-C 3 N 4 nanosheets. Freeze–thaw cycles (or freezing/thawing ultrasonic exfoliation) may be a promising method to produce monolayer g-C 3 N 4 nanosheets with high capacity and have been used to exfoliate other layered materials .…”

Section: Synthesis Methods Of G-c3n4 Filmmentioning

confidence: 99%

“…(b) Illustration of self-assembly strategy for g-C 3 N 4 film fabrication at water/air interface. The graphic was drawn according to the information in ref . Copyright 2020 Royal Society of Chemistry.…”

Section: Synthesis Methods Of G-c3n4 Filmmentioning

confidence: 99%

Graphitic Carbon Nitride Films: Emerging Paradigm for Versatile Applications

Jia

Yang

Zhang

et al. 2020

ACS Appl. Mater. Interfaces

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Graphitic carbon nitride (g-C 3 N 4 ) is a well-known two-dimensional conjugated polymer semiconductor that has been broadly applied in photocatalysis-related fields. However, further developments of g-C 3 N 4 , especially in device applications, have been constrained by the inherent limitations of its insoluble nature and particulate properties. Recent breakthroughs in fabrication methods of g-C 3 N 4 films have led to innovative and inspiring applications in many fields. In this review, we first summarize the fabrication of continuous and thin films, either supported on substrates or as free-standing membranes. Then, the novel properties and application of g-C 3 N 4 films are the focus of the current review. Finally, some underlying challenges and the future developments of g-C 3 N 4 films are tentatively discussed. This review is expected to provide a comprehensive and timely summary of g-C 3 N 4 film research to the wide audience in the field of conjugated polymer semiconductor-based materials.

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“…Recently, breakthroughs in fabrication methods of g-C 3 N 4 films including vapor deposition polymerization, thermal vapor deposition and chemical vapor deposition have led to innovative and inspiring applications in many fields (Thomas et al, 2008;Bian et al, 2015b;Xu et al, 2015a;Xu et al, 2015b;Peng et al, 2018a). It is promising to further improve the performance and stability of g-C 3 N 4 materials for water disinfection by employing thin films instead of the common bulk materials (Thomas et al, 2008;Wang et al, 2019c;Chen et al, 2020;Jia et al, 2020;Villalobos et al, 2020). However, the nanoscale topography on such film is usually absent, which would enhance the capture of bacteria from the solution and thereby the disinfection efficiency (Arazoe et al, 2016;Peng et al, 2018b;Jia et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Visible-Light-Driven Photocatalytic Water Disinfection Toward Escherichia coli by Nanowired g-C3N4 Film

Zhang

et al. 2021

Front. Nanotechnol.

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Graphitic carbon nitride (g-C3N4) as metal-free visible light photocatalyst has recently emerged as a promising candidate for water disinfection. Herein, a nanowire-rich superhydrophilic g-C3N4 film was prepared by a vapor-assisted confined deposition method. With a disinfection efficiency of over 99.99% in 4 h under visible light irradiation, this nanowire-rich g-C3N4 film was found to perform better than conventional g-C3N4 film. Control experiments showed that the disinfection performance of the g-C3N4 film reduced significantly after hydrophobic treatment. The potential disinfection mechanism was investigated through scavenger-quenching experiments, which indicate that H2O2 was the main active specie and played an important role in bacteria inactivation. Due to the metal-free composition and excellent performance, photocatalytic disinfection by nanowire-rich g-C3N4 film would be a promising and cost-effective way for safe drinking water production.

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Facile assembly of a graphitic carbon nitride film at an air/water interface for photoelectrochemical NADH regeneration

Abstract: A graphitic carbon nitride film electrode could be assembled at an air/water interface from nanosheets which exhibits improved photoelectrochemical coenzyme regeneration by further coupling with graphene during the interfacial self-assembly.

Cited by 26 publications

References 65 publications

Bioinspired NADH Regeneration Based on Conjugated Photocatalytic Systems

Bioinspired NADH Regeneration Based on Conjugated Photocatalytic Systems

Graphitic Carbon Nitride Films: Emerging Paradigm for Versatile Applications

Visible-Light-Driven Photocatalytic Water Disinfection Toward Escherichia coli by Nanowired g-C3N4 Film

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