A Crystalline Carbon Nitride Based Near‐Infrared Active Photocatalyst

Advanced Functional Materials, Journal Year: 2022, Volume and Issue: 32(47)

Published: Sept. 16, 2022

Abstract Efficient utilization of near‐infrared (NIR) light that takes a primary percentage the solar spectrum is great significance for practical applications photocatalysis. However, development singular NIR‐based photocatalysts still remains grand challenge. Herein, crystalline carbon nitride photocatalyst proposed by using molten‐salt assisted protocol with carbohydrazide as oxygen‐containing precursor. Different from doping strategy always leads to structural damage and crystallinity decrease, oxygen arising special precursor itself introduced into framework C 3 N 4 highly structure formed. The n→π* excitation therefore activated absorption edge extended remarkably 1400 nm. Theoretical calculations also reveal local internal electric field simultaneously generated promoting charge separation/migration kinetics. Benefiting incorporation formation, synthesized material shows significantly enhanced visible‐light (λ > 420 nm) hydrogen production reactivity compared benchmark nitride, more importantly an active NIR generation 700 long‐wavelength overall water splitting = 600 capability rarely reported photocatalysts. This study showcases illustration promising efficient fuel production.

Language: Английский

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Tuning of graphitic carbon nitride (g-C3N4) for photocatalysis: A critical review

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(3), P. 104542 - 104542

Published: Jan. 5, 2023

Graphitic carbon nitride (g-C3N4) is a remarkable semiconductor catalyst that has attracted widespread attention as visible light photo-responsive, metal-free, low-cost photocatalytic material. Pristine g-C3N4 suffers fast recombination of photogenerated electron-hole pairs, low surface area, and insufficient absorption, resulting in efficiency. This review presents the recent progress, perspectives, persistent challenges development g-C3N4-based materials. Several approaches employed to improve absorption materials including metal non-metal doping, co-doping, heterojunction engineering have been extensively discussed. These approaches, general, were found decrease material's bandgap, increase reduce charge carrier recombination, promote thereby enhancing overall performance. The material widely used for different applications such hydrogen production, water splitting, CO2 conversion, purification. work also identified various limitations weaknesses associated with hinders its maximum utilization under illumination presented state-of-the-art solutions reported recently. summary this would add an invaluable contribution photocatalysis research facilitate efficient light-responsive semiconducting

Language: Английский

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Magnetic dual Z-scheme g-C3N4/BiVO4/CuFe2O4 heterojunction as an efficient visible-light-driven peroxymonosulfate activator for levofloxacin degradation

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139659 - 139659

Published: Oct. 8, 2022

Language: Английский

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Improved catalytic performance of ZnO via coupling with CoFe2O4 and carbon nanotubes: A new, photocatalysis-mediated peroxymonosulfate activation system, applied towards Cefixime degradation

Journal of Environmental Management, Journal Year: 2022, Volume and Issue: 329, P. 117022 - 117022

Published: Dec. 20, 2022

Language: Английский

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Fe3O4 quantum dots mediated P-g-C3N4/BiOI as an efficient and recyclable Z-scheme photo-Fenton catalyst for tetracycline degradation and bacterial inactivation

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 456, P. 131677 - 131677

Published: May 26, 2023

Language: Английский

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Progress on mechanism and efficacy of heterogeneous photocatalysis coupled oxidant activation as an advanced oxidation process for water decontamination

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121119 - 121119

Published: Jan. 8, 2024

Language: Английский

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Superior visible light-mediated catalytic activity of a novel N-doped, Fe3O4-incorporating MgO nanosheet in presence of PMS: Imidacloprid degradation and implications on simultaneous bacterial inactivation

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 317, P. 121732 - 121732

Published: July 15, 2022

Impressive Imidacloprid (IMD) degradation and bacterial inactivation were attained through the photocatalytic activation of peroxymonosulfate (PMS) via a novel, N-doped MgO@Fe3O4, under visible light. After complete characterization (XPS, XRD, FT-IR, FE-SEM, EDX, HRTEM, DRS, BET, VSM, EIS), using [PMS]=75 mg/L, [N-MgO@Fe3O4]=150 mg/L at pH=5.6, around 95% 10 IMD was degraded within 60 min; highly synergic interactions between various catalytic routes revealed. Extensive scavenger tests EPR studies revealed that SO4•-, HO•, 1O2 are generated play key role in degradation. Tap water experiments proceeded unhindered, only presence high HCO3- PO43- concentration resulted decrease efficiency, while negligible leaching, magnetization, notable separation, reusability properties well-preserved for six repetitive cycles. Finally, E. coli disinfection achieved before degradation, possibly affected by its transformation byproducts. The overall efficacy N-MgO@Fe3O4 indicated potential implementation contaminated waters.

Language: Английский

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Simultaneously tuning electronic reaction pathway and photoactivity of P, O modified cyano-rich carbon nitride enhances the photosynthesis of H2O2

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 342, P. 123337 - 123337

Published: Sept. 26, 2023

Language: Английский

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O and S co-doping induced N-vacancy in graphitic carbon nitride towards photocatalytic peroxymonosulfate activation for sulfamethoxazole degradation

Chemosphere, Journal Year: 2023, Volume and Issue: 320, P. 138015 - 138015

Published: Feb. 4, 2023

Language: Английский

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Peroxymonosulfate assisted pesticide breakdown: Unveiling the potential of a novel S-scheme ZnO@CoFe2O4 photo-catalyst, anchored on activated carbon

Environmental Pollution, Journal Year: 2023, Volume and Issue: 334, P. 122059 - 122059

Published: June 28, 2023

Language: Английский

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