Inorganic acid-derived hydrogen-bonded organic frameworks to form nitrogen-rich carbon nitrides for photocatalytic hydrogen evolution

Tang, Yongbing; Ye, Meng; Jiang, Baojiang; Xiao, Yuting; Fu, Yu; Chen, Shuai; Deng, Zhao‐Peng; Pan, Qing‐Jiang; Tian, Chungui; Fu, Honggang

doi:10.1039/c7ta06459d

Cited by 71 publications

(24 citation statements)

References 52 publications

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“…After the hydrothermal reaction, the obtained S and P co-doped g-C3N4 turned out to be micro-nano rods and had much better performance on degrading organic pollutants [108]. Tang et al used H2SO4, HNO3 and hydrogen chloride (HCl) to treat melamine, and they obtained g-C3N4 micro-nano rods with various lengths, diameters and specific surface area (ABET) [109]. All the g-C3N4 micro-nano rods have higher photocatalytic activity than bulk g-C3N4.…”

Section: G-c 3 N 4 Micro-nano Rodsmentioning

confidence: 99%

Graphitic carbon nitride with different dimensionalities for energy and environmental applications

et al. 2019

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As a metal-free semiconductor, graphitic carbon nitride (g-C 3 N 4) has received extensive attention due to its high stability, nontoxicity, facile and low-cost synthesis, appropriate band gap in the visible spectral range and wide availability of resources. The dimensions of g-C 3 N 4 can influence the regime of the confinement of electrons, and consequently, g-C 3 N 4 with various dimensionalities shows different properties, making them available for many stimulating applications. Although there are some reviews focusing on the synthesis strategy and applications of g-C 3 N 4 , there is still a lack of comprehensive review that systemically summarises the synthesis and application of different dimensions of g-C 3 N 4 , which can provide an important theoretical and practical basis for the development of g-C 3 N 4 with different dimensionalities and maximises their potential in diverse applications. By reviewing the latest progress of g-C 3 N 4 studies, we aim to summarise the preparation of g-C 3 N 4 with different dimensionalities using various structural engineering strategies, discuss the fundamental bottlenecks of currently existing methods and their solution strategies, and explore their applications in energy and environmental applications. Furthermore, it also puts forward the views on the future research direction of these unique materials.

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Section: G-c 3 N 4 Micro-nano Rodsmentioning

confidence: 99%

Graphitic carbon nitride with different dimensionalities for energy and environmental applications

et al. 2019

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“…[33][34][35] Enlightened by this, molecule self-assembly strategy could bring specially shaped micro-nanomaterials. [36,37] 1D length-diameter ratio and quantum confinement effect are conducive to exposure of active sites, mass diffusion, directional charge transport, and inhibition of charge recombination, which endow carbon nitride materials with elevated catalyst efficiency. [38][39][40] However, it is extremely difficult to simultaneously manipulate the morphology and π-electronic structure of carbon nitride materials.…”

Section: Introductionmentioning

confidence: 99%

Porous Carbon Nitride Thin Strip: Precise Carbon Doping Regulating Delocalized π‐Electron Induces Elevated Photocatalytic Hydrogen Evolution

Zhang

Liu

et al. 2021

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The photocatalytic efficiency of polymeric carbon nitride is hampered by high carrier recombination rate and low charge transfer. Herein, these issues are addressed by constructing 1D strip-like carbon nitride with a large π-electron conjugated system from carbon-doping, realizing the synchronization control of its electronic structure and morphology. Nicotinic acid, a monomer with the carboxyl group and pyridine ring, and melamine are selected for assembling the strip-like supramolecular via hydrogen bond under hydrothermal process. Both peripheral pyridine unit and hydrogen bond have significant effect on self-assembly process of nicotinic acid and melamine along one dimension to form a strip-like precursor. Subsequently, 1D thin porous strip-like carbon nitride is obtained by calcination treatment of precursor. The as-prepared 1D strip-like carbon nitride with effective π delocalization from carbon-doping and porous structure can accelerate charges and mass transfer and provide extra active sites. Both theoretical and experimental results demonstrate that carbon doping (pyridine heterocycle) narrows the bandgap via manipulating the band position and increases the π electron density. Thus, the 1D porous thin strip-like carbon nitride realizes compelling hydrogen evolution rate (126.2 µmol h −1), far beyond (≈18 fold) the value of polymeric carbon nitride (PCN) (7.2 µmol h −1) under visible light irradiation.

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“…Molecular self‐assembly is a process in which molecules connect by means of noncovalent bonds to give stable aggregates with clear compositions and structures. An example is the formation of the cyanuric acid–melamine (CM) complex, [ 47–55 ] a supramolecular precursor of g‐C 3 N 4 that is stabilized by hydrogen bonding. In a CM complex up to three hydrogen bonds form between the constituent cyanuric acid and melamine molecules, and the complex can take a variety of forms, depending on the solvent in which it is arranged and precipitated.…”

Section: Synthesis Strategies For G‐c3n4‐supported Sma Catalystsmentioning

confidence: 99%

Single Metal Atom Decorated Carbon Nitride for Efficient Photocatalysis: Synthesis, Structure, and Applications

et al. 2021

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Graphitic carbon nitride (g‐C3N4), as a new type of visible‐light‐responsive photocatalyst, has a unique 2D building unit, excellent chemical stability, and a tunable electronic structure. At the same time, g‐C3N4 has a large number of periodically separated N atoms that can act as anchoring sites for various functional materials, particularly single metal atoms (SMAs). Recently, supported single atoms have attracted much attention in the field of photocatalysis. Also, it has been shown that g‐C3N4 is a wonderful material to support atomically dispersed SMA photocatalysts, such as Pd, Pt, Cu, Co, Ni, and Fe. Herein, the latest progress on g‐C3N4 synthesis strategies and the synergy between this material and SMA catalysts is summarized. The coordination environment and electronic structure of SMAs on g‐C3N4 are discussed, and the available characterization techniques for studying the physiochemical properties are summarized. Applications of g‐C3N4‐supported SMA catalysts for photocatalytic hydrogen production, CO2 reduction, organic synthesis, and nitrogen fixation are reviewed. This review is concluded with a discussion of the remaining challenges and future perspectives. It is hoped that by using SMAs anchored on g‐C3N4 as examples this review will help to elucidate the fundamentals and the great potential of SMA‐based catalysts, and promote their further development.

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Inorganic acid-derived hydrogen-bonded organic frameworks to form nitrogen-rich carbon nitrides for photocatalytic hydrogen evolution

Abstract: The nitrogen rich carbon nitrides from inorganic acid-derived HOF-liked precursors, which exhibit enhanced visible-light photocatalytic hydrogen evolution.

Cited by 71 publications

References 52 publications

Graphitic carbon nitride with different dimensionalities for energy and environmental applications

Graphitic carbon nitride with different dimensionalities for energy and environmental applications

Porous Carbon Nitride Thin Strip: Precise Carbon Doping Regulating Delocalized π‐Electron Induces Elevated Photocatalytic Hydrogen Evolution

Single Metal Atom Decorated Carbon Nitride for Efficient Photocatalysis: Synthesis, Structure, and Applications

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