Selective Breaking of Hydrogen Bonds of Layered Carbon Nitride for Visible Light Photocatalysis

Kang, Yuyang; Yang, Yongqiang; Yin, Lichang; Kang, Xiangdong; Wang, Luyao; Liu, Gang; Cheng, Hui‐Ming

doi:10.1002/adma.201601567

Cited by 554 publications

(408 citation statements)

References 37 publications

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“…Figure 3b shows the XRD spectra of the samples. [2,31,32] With increasing of the B-doping content, these two characteristic peaks were getting weaker, indicating B-doping changes the periodic arrangement of atoms in g-C 3 N 4 . [2,31,32] With increasing of the B-doping content, these two characteristic peaks were getting weaker, indicating B-doping changes the periodic arrangement of atoms in g-C 3 N 4 .…”

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confidence: 99%

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄

et al. 2019

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The photoreduction of CO2 to hydrocarbon products has attracted much attention because it provides an avenue to directly synthesize value‐added carbon‐based fuels and feedstocks using solar energy. Among various photocatalysts, graphitic carbon nitride (g‐C3N4) has emerged as an attractive metal‐free visible‐light photocatalyst due to its advantages of earth‐abundance, nontoxicity, and stability. Unfortunately, its photocatalytic efficiency is seriously limited by charge carriers′ ready recombination and their low reaction dynamics. Modifying the local electronic structure of g‐C3N4 is predicted to be an efficient way to improve the charge transfer and reaction efficiency. Here, boron (B) is doped into the large cavity between adjacent tri‐s‐triazine units via coordination with two‐coordinated N atoms. Theoretical calculations prove that the new electron excitation from N (2px, 2py) to B (2px, 2py) with the same orbital direction in B‐doped g‐C3N4 is much easier than N (2px, 2py) to C 2pz in pure g‐C3N4, and improves the charge transfer and localization, and thus the reaction dynamics. Moreover, B atoms doping changes the adsorption of CO (intermediate), and can act as active sites for CH4 production. As a result, the optimal sample of 1%B/g‐C3N4 exhibits better selectivity for CH4 with ≈32 times higher yield than that of pure g‐C3N4.

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Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄

et al. 2019

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“…With the use of the interlayer galleries as diffusion channels, such an orderly layered structure has been proven facilitative for light absorption [28,29].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Simple synthesis of oxygen functional layered carbon nitride with near-infrared light photocatalytic activity

et al. 2017

Catalysis Communications

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“…Besides polycrystalline GCN, amorphous carbon nitride (ACN) has also been reported to be a promising photocatalyst 25, 26, 27. Varying the C/N ratio, two eminent derivatives of carbon nitride, namely, C 2 N28 and C 3 N29 have been reported, which might also possibly be used as a photocatalyst.…”

Section: A Brief Overview Of Carbon Nitridesmentioning

confidence: 99%

Tuning the Intrinsic Properties of Carbon Nitride for High Quantum Yield Photocatalytic Hydrogen Production

2018

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The low quantum yield of photocatalytic hydrogen production in carbon nitride (CN) has been improved upon via the modulation of both the extrinsic and intrinsic properties of the material. Although the modification of extrinsic properties has been widely investigated in the past, recently there has been growing interest in the alteration of intrinsic properties. Refining the intrinsic properties of CN provides flexibility in controlling the charge transport and selectivity in photoredox reactions, and therefore makes available a pathway toward superior photocatalytic performance. An analysis of recent progress in tuning the intrinsic photophysical properties of CN facilitates an assessment of the goals, achievements, and gaps. This article is intended to serve this purpose. Therefore, selected techniques and mechanisms of the tuning of intrinsic properties of CN are critically discussed here. This article concludes with a recommendation of the issues that need to be considered for the further enhancement in the quantum efficiency of CN photocatalysts.

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Selective Breaking of Hydrogen Bonds of Layered Carbon Nitride for Visible Light Photocatalysis

Cited by 554 publications

References 37 publications

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄

Simple synthesis of oxygen functional layered carbon nitride with near-infrared light photocatalytic activity

Tuning the Intrinsic Properties of Carbon Nitride for High Quantum Yield Photocatalytic Hydrogen Production

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Selective Breaking of Hydrogen Bonds of Layered Carbon Nitride for Visible Light Photocatalysis

Cited by 554 publications

References 37 publications

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO2 to CH4

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO2 to CH4

Simple synthesis of oxygen functional layered carbon nitride with near-infrared light photocatalytic activity

Tuning the Intrinsic Properties of Carbon Nitride for High Quantum Yield Photocatalytic Hydrogen Production

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Product

Resources

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Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄

Graphitic Carbon Nitride with Dopant Induced Charge Localization for Enhanced Photoreduction of CO₂ to CH₄