Chemically bonded carbon quantum dots/Bi2WO6 S-scheme heterojunction for boosted photocatalytic antibiotic degradation: Interfacial engineering and mechanism insight

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122587 - 122587

Published: March 6, 2023

Language: Английский

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Enhanced photocatalytic degradation performance of BiVO4/BiOBr through combining Fermi level alteration and oxygen defect engineering

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 449, P. 137757 - 137757

Published: June 23, 2022

Language: Английский

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Synergistic effect of hierarchical structure and S-scheme heterojunction over O-doped g-C3N4/N-doped Nb2O5 for highly efficient photocatalytic CO2 reduction

Applied Catalysis B Environment and Energy, Journal Year: 2022, Volume and Issue: 315, P. 121585 - 121585

Published: June 3, 2022

Language: Английский

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Flower-globular BiOI/BiVO4/g-C3N4 with a dual Z-scheme heterojunction for highly efficient degradation of antibiotics under visible light

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 297, P. 121503 - 121503

Published: June 15, 2022

Language: Английский

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Thiadiazole-Based Covalent Organic Frameworks with a Donor–Acceptor Structure: Modulating Intermolecular Charge Transfer for Efficient Photocatalytic Degradation of Typical Emerging Contaminants

Environmental Science & Technology, Journal Year: 2022, Volume and Issue: 56(22), P. 16303 - 16314

Published: Oct. 28, 2022

As novel metal-free photocatalysts, covalent organic frameworks (COFs) have great potential to decontaminate pollutants in water. Fast charge recombination COFs yet inhibits their photocatalytic performance. We found that the intramolecular transfer within could be modulated via constructing a donor-acceptor (D-A) structure, leading improved performance of toward pollutant degradation. By integrating electron donor units (1,3,4-thiadiazole or 1,2,4-thiadiazole ring) and acceptor (quinone), two (COF-TD1 COF-TD2) with robust D-A characteristics were fabricated as visible-light-driven photocatalysts paracetamol. With readily excited electrons 1,3,4-thiadiazole rings, COF-TD1 exhibited efficient electron-hole separation through push-pull electronic effect, resulting superior paracetamol photodegradation (>98% degradation 60 min) than COF-TD2 (∼60% 120 min). efficiently photodegrade complicated water matrices even river water, lake sewage wastewater. Diclofenac, bisphenol A, naproxen, tetracycline hydrochloride also effectively degraded by COF-TD1. Efficient scaled-up reactor achieved either powder form immobilized onto glass slide (to further ease recovery reuse) under natural sunlight irradiation. Overall, this study provided an effective strategy for designing excellent COF-based degrade emerging contaminants.

Language: Английский

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Ni doping in unit cell of BiOBr to increase dipole moment and induce spin polarization for promoting CO2 photoreduction via enhanced build-in electric field

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 327, P. 122420 - 122420

Published: Feb. 2, 2023

Language: Английский

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Carbon Quantum Dot-Decorated BiOBr/Bi₂WO₆ Photocatalytic Micromotor for Environmental Remediation and DFT Calculation

ACS Catalysis, Journal Year: 2022, Volume and Issue: 12(22), P. 13897 - 13909

Published: Oct. 28, 2022

Efficient photocatalysts are crucial for degrading antibiotic pollutants in water and vital environmental remediation. In this study, an efficient carbon quantum dot (CQD)-modified BiOBr/Bi2WO6 hybrid material was prepared by a mild hydrothermal method. Meanwhile, visible-light-driven micromotor based on the photocatalyst developed. The can achieve self-propelled motion powered photocatalytic degradation reaction. It exhibited remarkable activity toward common water, such as sulfonamide, quinolone, tetracycline antibiotics. Among them, 10CQD/BiOBr/Bi2WO6-4 (10CBBr-4) highest activity, which 2.8 5 times higher than those of BiOBr Bi2WO6, respectively. high is attributed to decoration CQDs, promoted visible-light absorption. Additional contributions may be due specific Z-type electron transport mode flower-like inserted two-dimensional (2D) Bi2WO6 nanosheets, enriched active reaction sites, facilitated adsorption molecules, final radical attack. Based theoretical calculation molecular orbitals Fukui index, possible intermediate products, pathways, mechanism were elucidated. This study suggests that structural engineering CQD modification effectively allows design microrobots degradation.

Language: Английский

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Ternary hetero-structured BiOBr/Bi2MoO6@MXene composite membrane: Construction and enhanced removal of antibiotics and dyes from water

Journal of Membrane Science, Journal Year: 2022, Volume and Issue: 669, P. 121329 - 121329

Published: Dec. 27, 2022

Language: Английский

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Returnable MoS2@carbon nitride nanotube composite hollow spheres drive photo-self-Fenton-PMS system for synergistic catalytic and photocatalytic tetracycline degradation

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 478, P. 147344 - 147344

Published: Nov. 13, 2023

Language: Английский

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Silver doped barium titanate nanoparticles for enhanced visible light photocatalytic degradation of dyes

Environmental Pollution, Journal Year: 2024, Volume and Issue: 344, P. 123430 - 123430

Published: Jan. 26, 2024

Language: Английский

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