Highly efficient Ag2O/Na-g-C3N4 heterojunction for photocatalytic desulfurization of thiophene in fuel under ambient air conditions

Zhou, Xiaoyu; Wang, Tianyi; Zhang, Lei; Che, Shuya; Liu, Huan; Liu, Sixiao; Wang, Chengyin; Su, Dawei; Teng, Zhenyuan

doi:10.1016/j.apcatb.2022.121614

Cited by 69 publications

(14 citation statements)

References 56 publications

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“…The hydroxyl groups are further consumed by the holes at the surfaces of BiVO 4 supports. 49,50 The holes behave as electrophiles that convert -OH groups into radicals (cOH). It has been observed that due to the presence of Na contents, a higher concentration of cOH is inevitable that is impossible in the case of bare BiVO 4 or Co-BiVO 4 .…”

Section: Mechanism Of the Photoreactionmentioning

confidence: 99%

Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

et al. 2023

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Section: Mechanism Of the Photoreactionmentioning

confidence: 99%

Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

et al. 2023

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“…As a result of the local micro-electrolysis of water, piezo-catalytic materials can produce a number of reactive oxygen species (ROS) such as ·OH, ·O 2 – , ·HO 2 and H 2 O 2 . In the textile, chemical, pharmaceutical, and food industries, ROS are used to catalytically oxidize and degrade toxic and carcinogenic dyes in water 6 – 8 .…”

Section: Introductionmentioning

confidence: 99%

“…In spite of the adoption of new energy strategies in recent years, the use of conventional fuels remains dominant. As a result of the combustion of sulfur-containing fuels, SO x is produced, which contributes to acid rain and fine particulate matter (PM 2.5), as well as corrosion of engines and catalytic converters 8 – 11 . Globally, strict regulations have been enacted to limit fuels with low sulfur content 12 , 13 .…”

Section: Introductionmentioning

confidence: 99%

Studying the mechanism and kinetics of fuel desulfurization using CexOy/NiOx piezo-catalysts as a new low-temperature method

Ahmed

Amiri

Rahman

et al. 2023

Sci Rep

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In order to advance desulfurization technology, a new method for excellent oxidative desulfurization of fuel at room temperature will be of paramount importance. As a novel desulfurization method, we developed piezo-catalysts that do not require adding any oxidants and can be performed at room temperature. A microwave method was used to prepare CeO2/Ce2O3/NiOx nanocomposites. Model and real fuel desulfurization rates were examined as a function of synthesis parameters, such as microwave power and time, and operation conditions, such as pH and ultrasonic power. The results showed that CeO2/Ce2O3/NiOx nanocomposites demonstrated outstanding piezo-desulfurization at room temperature for both model and real fuels. Furthermore, CeO2/Ce2O3/NiOx nanocomposites exhibited remarkable reusability, maintaining 79% of their piezo-catalytic activity even after 17 repetitions for desulfurization of real fuel. An investigation of the mechanism of sulfur oxidation revealed that superoxide radicals and holes played a major role. Additionally, the kinetic study revealed that sulfur removal by piezo-catalyst follows a second-order reaction kinetic model.

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“…In general, the layer-stacked configuration of PCN, including the layer stacking distance and layer component, can be used to theoretically predict the exciton dissociation state as well as the charge mobility. ,− On the one hand, the shorter distance in chemistry usually means strong bonding, and in this situation presumably strong polarization and/or charge transfer between layers. Actually, changing the polycondensation process can clearly affect the interlayer organization. − For example, the π–π stacking distance in disordered melon is generally 0.326 nm, while a compression of the average interlayer distance with about 0.319 nm will be realized by an isothermal tempering treatment .…”

Section: Introductionmentioning

confidence: 99%

Boosting Photosynthetic H₂O₂of Polymeric Carbon Nitride by Layer Configuration Regulation and Fluoride–Potassium Double-Site Modification

Guo

Feng

et al. 2022

ACS Appl. Mater. Interfaces

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Photocatalytic hydrogen peroxide (H 2 O 2 ) production will become a burgeoning strategy for solar energy utilization by selective oxygen reduction reaction (ORR). Polymeric carbon nitride (PCN) shows relatively high two-electron ORR selectivity for H 2 O 2 production but still limited low H 2 O 2 production efficiency due to slow exciton dissociation. Herein, we constructed a heptazine/triazine layer stacked carbon nitride heterojunction with fluorine/potassium (F/K) dual sites (FKHTCN). The introduction of F/K not only can regulate layer components to enhance the charge separation efficiency but, more importantly, also optimize the adsorption of surface oxygen molecules and intermediate *OOH during H 2 O 2 production. Consequently, FKHTCN efficiently improves the photocatalytic H 2 O 2 production rate up to 3380.9 μmol h −1 g −1 , nearly 15 times higher than that of traditional PCN. Moreover, a production−utilization cascade system was designed to explore their practical application in environmental remediation. This work lays out the importance of engineering a layer-stacked configuration and active sites for enhancing photocatalysis.

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Highly efficient Ag2O/Na-g-C3N4 heterojunction for photocatalytic desulfurization of thiophene in fuel under ambient air conditions

Cited by 69 publications

References 56 publications

Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

Studying the mechanism and kinetics of fuel desulfurization using CexOy/NiOx piezo-catalysts as a new low-temperature method

Boosting Photosynthetic H₂O₂of Polymeric Carbon Nitride by Layer Configuration Regulation and Fluoride–Potassium Double-Site Modification

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Highly efficient Ag2O/Na-g-C3N4 heterojunction for photocatalytic desulfurization of thiophene in fuel under ambient air conditions

Cited by 69 publications

References 56 publications

Synergism of Co/Na in BiVO4 microstructures for visible-light driven degradation of toxic dyes in water

Synergism of Co/Na in BiVO4 microstructures for visible-light driven degradation of toxic dyes in water

Studying the mechanism and kinetics of fuel desulfurization using CexOy/NiOx piezo-catalysts as a new low-temperature method

Boosting Photosynthetic H2O2of Polymeric Carbon Nitride by Layer Configuration Regulation and Fluoride–Potassium Double-Site Modification

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Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

Synergism of Co/Na in BiVO₄ microstructures for visible-light driven degradation of toxic dyes in water

Boosting Photosynthetic H₂O₂of Polymeric Carbon Nitride by Layer Configuration Regulation and Fluoride–Potassium Double-Site Modification