Formic acid assisted fabrication of Oxygen-doped Rod-like carbon nitride with improved photocatalytic hydrogen evolution

Wen, Jiaqi; Zhang, Shuaiyang; Liu, Yonggang; Zhai, Yunpu

doi:10.1016/j.jcis.2022.05.130

Cited by 18 publications

(7 citation statements)

References 53 publications

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“…In comparison, two new peaks centered at 533.38, and 531.58, which are assigned to C−O bond and C=O respectively, were observed in the OCN material. [16][46] Furthermore, based on the high‐resolution C 1s XPS spectrum (Figure 3c), the C−O−C content in OCN is slightly higher than that in g‐C 3 N 4 , which should be the result of hydrogen peroxide hydrothermal treatment for melamine [17] . On the other hand, the percentage of N−C=N (Figure 3d) in OCN is 59.97 % compared to 75.5 % in g‐C 3 N 4 , which might be due to the C=O production [17] …”

Section: Resultsmentioning

confidence: 99%

“…[17] On the other hand, the percentage of NÀ C=N (Figure 3d) in OCN is 59.97 % compared to 75.5 % in g-C 3 N 4 , which might be due to the C=O production. [17] The Fourier-transform infrared (FT-IR) spectroscopy (Figure S2) reveals that the OCN has a molecular structure that is comparable to bulk g-C 3 N 4 . The adsorption at 810 cm À 1 for the breathing mode of the tri-s-triazine ring and in the area of 1200-1600 cm À 1 for the typical stretching modes of the CN heterocyclic suggests that the short-range structure is well preserved.…”

Section: Materials Synthesis and Characterizationmentioning

confidence: 87%

“…[14] An effective approach to address this issue is oxygen doping, which modifies the energy band structure to improve the catalytic activity. [12,[15][16][17] Quinoxalin-2(1H)-ones is a special heterocyclic structure that has attracted the attention of chemists because of its remarkable biological activity. [18][19][20] Particularly, 3-arylquinoxalin-2(1H)ones, as an important structural scaffold, is frequently used in the projects of antimicrobial activity, [21] anticancer, [22,23] and so on.…”

Section: Introductionmentioning

confidence: 99%

“…This leads to a significant weakening of the catalytic effect during the transfer of electrons on the catalyst surface under light illumination [14] . An effective approach to address this issue is oxygen doping, which modifies the energy band structure to improve the catalytic activity [12,15–17] …”

Section: Introductionmentioning

confidence: 99%

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Synthesis of 3‐Arylquinoxalin‐2(1H)‐ones under Visible‐Light Irradiation with Oxygen‐Doped Carbon Nitride as Heterogenous Photocatalyst

et al. 2023

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A novel oxygen‐doped graphitic carbon nitride (OCN) material was designed and synthesized via the hydrothermal‐calcination method with melamine and hydroperoxide as starting materials. The OCN material was utilized as a highly efficient solid metal‐free photocatalyst for the synthesis of 3‐arylquinoxalin‐2(1H)‐ones via the catalytic decomposition of aryl diazonium salts under blue light irradiation. Following this approach, various 3‐arylquinoxalin‐2(1H)‐one derivatives could be obtained in moderate to excellent yields with broad substrate scope under mild conditions. Also, the OCN solid photocatalyst shows good recyclability in the reaction, there was no appreciable loss in yields observed even after 5 cycles. This methodology offers a practical, mild, and metal‐free alternative to the preparation of 3‐arylquinoxalin‐2(1H)‐ones.

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Section: Resultsmentioning

confidence: 99%

Section: Materials Synthesis and Characterizationmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis of 3‐Arylquinoxalin‐2(1H)‐ones under Visible‐Light Irradiation with Oxygen‐Doped Carbon Nitride as Heterogenous Photocatalyst

et al. 2023

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“…Table 6 summarizes diverse mono-heteroatoms including phosphorus [ 76 , 89 , 90 , 91 , 92 , 93 , 94 , 95 , 96 , 97 , 98 , 99 , 100 , 101 , 102 , 103 ], sulfur [ 104 , 105 , 106 , 107 , 108 , 109 , 110 , 111 , 112 , 113 , 114 ], boron [ 115 , 116 , 117 , 118 , 119 , 120 , 121 ], oxygen [ 122 , 123 , 124 , 125 , 126 , 127 , 128 , 129 , 130 , 131 , 132 , 133 , 134 ], carbon [ 135 , 136 , 137 , 138 , 139 ], nitrogen [ 140 , 141 , …”

Section: Heteroatom-doped Porous Carbon Nitridementioning

confidence: 99%

Non-Metal-Doped Porous Carbon Nitride Nanostructures for Photocatalytic Green Hydrogen Production

Lü

Abdelgawad

et al. 2022

IJMS

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Photocatalytic green hydrogen (H2) production through water electrolysis is deemed as green, efficient, and renewable fuel or energy carrier due to its great energy density and zero greenhouse emissions. However, developing efficient and low-cost noble-metal-free photocatalysts remains one of the daunting challenges in low-cost H2 production. Porous graphitic carbon nitride (gCN) nanostructures have drawn broad multidisciplinary attention as metal-free photocatalysts in the arena of H2 production and other environmental remediation. This is due to their impressive catalytic/photocatalytic properties (i.e., high surface area, narrow bandgap, and visible light absorption), unique physicochemical durability, tunable electronic properties, and feasibility to synthesize in high yield from inexpensive and earth-abundant resources. The physicochemical and photocatalytic properties of porous gCNs can be easily optimized via the integration of earth-abundant heteroatoms. Although there are various reviews on porous gCN-based photocatalysts for various applications, to the best of our knowledge, there are no reviews on heteroatom-doped porous gCN nanostructures for the photocatalytic H2 evolution reaction (HER). It is essential to provide timely updates in this research area to highlight the research related to fabrication of novel gCNs for large-scale applications and address the current barriers in this field. This review emphasizes a panorama of recent advances in the rational design of heteroatom (i.e., P, O, S, N, and B)-doped porous gCN nanostructures including mono, binary, and ternary dopants for photocatalytic HERs and their optimized parameters. This is in addition to H2 energy storage, non-metal configuration, HER fundamental, mechanism, and calculations. This review is expected to inspire a new research entryway to the fabrication of porous gCN-based photocatalysts with ameliorated activity and durability for practical H2 production.

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Bio‐Inspired Supramolecular Self‐Assembled Carbon Nitride Nanostructures for Photocatalytic Water Splitting

Dharmarajan,

Vidyasagar,

Yang

et al. 2023

Advanced Materials

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Fast production of hydrogen and oxygen in large amounts at an economic rate is the need of the hour to cater to the needs of the most awaited hydrogen energy, a futuristic renewable energy solution. Production of hydrogen through a simple water splitting through visible light photocatalytic approach using sunlight is considered as one of the most promising and sustainable approaches for generating clean fuels. For this purpose, a variety of catalytic techniques and novel catalysts are being investigated. Among these catalysts, carbon nitride is presently deemed as one of the best candidates for the visible light photocatalysis due to its unique molecular structure and adequate visible‐range band gap. Its band gap can further be engineered by structural and morphological manipulation or by, doping/hybridization. Among numerous synthetic approaches for carbon nitrides, supramolecular self‐assembly is one of the recently developed elegant bottom‐up strategies as it is bio‐inspired and provides a facile and eco‐friendly route to synthesise high surface area carbon nitride with superior morphological features and other semiconducting and catalytic properties. The current review article broadly covers supramolecular self‐assembly synthesis of carbon nitride nanostructures and their photocatalytic water splitting application and provides a comprehensive outlook on the future directions.This article is protected by copyright. All rights reserved

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Formic acid assisted fabrication of Oxygen-doped Rod-like carbon nitride with improved photocatalytic hydrogen evolution

Cited by 18 publications

References 53 publications

Synthesis of 3‐Arylquinoxalin‐2(1H)‐ones under Visible‐Light Irradiation with Oxygen‐Doped Carbon Nitride as Heterogenous Photocatalyst

Synthesis of 3‐Arylquinoxalin‐2(1H)‐ones under Visible‐Light Irradiation with Oxygen‐Doped Carbon Nitride as Heterogenous Photocatalyst

Non-Metal-Doped Porous Carbon Nitride Nanostructures for Photocatalytic Green Hydrogen Production

Bio‐Inspired Supramolecular Self‐Assembled Carbon Nitride Nanostructures for Photocatalytic Water Splitting

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