Fabrication of S-scheme heterojunction g-C3N4-nanosheet/ZnMoO4 nanocomposite with high efficiency in photocatalytic N2 fixation and Cr(VI) detoxification

Mousavi, Mitra; Moradian, Sahar; Pourhakkak, Pouran; Zhang, Gaoke; Habibi, Mohammad Mehdi; Madadi, Meisam

doi:10.1007/s10853-022-07225-5

Cited by 19 publications

(3 citation statements)

References 72 publications

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“…It could be seen that the characteristic peak located at 27.5° corresponds to the typical graphitic interlayer stacking (002) of both bulk g-C 3 N 4 and g-C 3 N 4 nanosheets. With respect to bulk g-C 3 N 4 , the (002) peak intensity of the g-C 3 N 4 nanosheet decreased significantly, indicating its reduced thickness and successful exfoliation of bulk g-C 3 N 4 . − The color of the g-C 3 N 4 nanosheet solution was milky white (Figure S1), and it could remain stable in storage at room temperature for 3 months without any aggregation. The inset in Figure S2 shows the photographs of the g-C 3 N 4 nanosheets under 365 nm UV irradiation.…”

Section: Resultsmentioning

confidence: 99%

Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Zhang

et al. 2023

Anal. Chem.

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Assays for carbendazim (Car) with high sensitivity and on-site screening have been urgently required to protect the ecosystem and prevent disease. In this work, a simple, sensitive, and reliable sensing system based on photoinduced electron transfer was established to detect carbendazim utilizing ultrathin graphitic carbon nitride (g-C3N4) nanosheets and rhodamine B (RB). Carbendazim reacts with g-C3N4 by electrostatic interactions to form π–π stacking, and the quenching of the blue fluorescence is caused by electron transfer. While RB works as a reference fluorescence sensor without any fluorescence change, leading to obvious ratiometric fluorescence variation from blue to purple. Under optimal conditions, a favorable linear range from 20 to 180 nM was obtained, with a low detection limit of 5.89 nM. In addition, a portable smartphone sensing platform was successfully used for carbendazim detection in real samples with excellent anti-interference capability, demonstrating the potential applications of carbendazim monitoring.

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Section: Resultsmentioning

confidence: 99%

Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Zhang

et al. 2023

Anal. Chem.

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“…2d, which shows the highresolution XPS spectrum of C 1s, reveals that the peaks at 284.5 eV and 286.9 eV can be attributed to the C-C, C-N, and CQN bonds in the g-C 3 N 4 and PANI. 36,50 Two peaks can be seen in the high-resolution N 1s spectrum (Fig. 2e), one at 399.3 eV (C-NQC) of g-C 3 N 4 and the other at 401.8 eV (C-N) of g-C 3 N 4 and the benzenoid structure (-NH-) of PANI.…”

Section: Njc Papermentioning

confidence: 99%

Construction of a g-C₃N₄/PANI/α-MnO₂ direct Z-scheme heterojunction with oxygen-rich vacancies for enhancing photocatalytic degradation of tetracycline hydrochloride under visible light

Chopan

Chishti

2023

New J. Chem.

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“…When they are combined, there will be energy band bending, which will promote the recombination of electron–holes in the internal electric field, so as to enhance the redox performance of photocatalysts. The S‐scheme heterojunction has been studied most recently in comparison with other types of heterojunctions, so there are few studies on the construction of g‐C 3 N 4 ‐based S‐scheme heterojunction for p‐NRR, [ 132 ] it is believed that it will become a hot topic in the near future.…”

Section: Solutions Toward P‐nrr Challengesmentioning

confidence: 99%

Recent Advances in Application of Graphitic Carbon Nitride‐Based Catalysts for Photocatalytic Nitrogen Fixation

Zhang

Hou

Wang

et al. 2022

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Ammonia, the second most-produced chemical, is widely used in agricultural and industrial applications. However, traditional industrial ammonia production dominated by the Haber-Bosch process presents huge resource and environment issues due to the massive energy consumption and CO 2 emission. The newly emerged nitrogen fixation technology, photocatalytic N 2 reduction reaction (p-NRR), uses clean solar energy with zero-emission, holding great prospect to achieve sustainable ammonia synthesis. Although great efforts are made, the p-NRR catalysts still suffer from poor N 2 adsorption and activation, inferior light absorption, and fast recombination of photocarriers. Due to the tunable electronic structure of the metal-free polymeric graphitic carbon nitride (g-C 3 N 4 ), the above-mentioned issues can be significantly alleviated, making it the most promising p-NRR photocatalyst. This review summarizes the recent development of g-C 3 N 4 -based catalysts for p-NRR, including the working principle of p-NRR catalysts, the challenges of developing p-NRR catalysts, and corresponding solutions. Particularly, the roles of defect engineering and heterojunction construction on g-C 3 N 4 to the enhancement of photocatalytic performances are emphasized. In addition, computational studies are introduced to deepen the understanding of reaction pathways. At last, perspectives are provided on the development of p-NRR catalysts.

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Fabrication of S-scheme heterojunction g-C3N4-nanosheet/ZnMoO4 nanocomposite with high efficiency in photocatalytic N2 fixation and Cr(VI) detoxification

Cited by 19 publications

References 72 publications

Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Construction of a g-C₃N₄/PANI/α-MnO₂ direct Z-scheme heterojunction with oxygen-rich vacancies for enhancing photocatalytic degradation of tetracycline hydrochloride under visible light

Recent Advances in Application of Graphitic Carbon Nitride‐Based Catalysts for Photocatalytic Nitrogen Fixation

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Fabrication of S-scheme heterojunction g-C3N4-nanosheet/ZnMoO4 nanocomposite with high efficiency in photocatalytic N2 fixation and Cr(VI) detoxification

Cited by 19 publications

References 72 publications

Photoinduced Electron Transfer-Triggered g-C3N4\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Photoinduced Electron Transfer-Triggered g-C3N4\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Construction of a g-C3N4/PANI/α-MnO2 direct Z-scheme heterojunction with oxygen-rich vacancies for enhancing photocatalytic degradation of tetracycline hydrochloride under visible light

Recent Advances in Application of Graphitic Carbon Nitride‐Based Catalysts for Photocatalytic Nitrogen Fixation

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Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Photoinduced Electron Transfer-Triggered g-C₃N₄\Rhodamine B Sensing System for the Ratiometric Fluorescence Quantitation of Carbendazim

Construction of a g-C₃N₄/PANI/α-MnO₂ direct Z-scheme heterojunction with oxygen-rich vacancies for enhancing photocatalytic degradation of tetracycline hydrochloride under visible light