Constructing Cd0.5Zn0.5S/Bi2WO6 S-scheme heterojunction for boosted photocatalytic antibiotic oxidation and Cr(VI) reduction

Advanced Powder Materials, Journal Year: 2022, Volume and Issue: 2(1), P. 100073 - 100073

Published: June 30, 2022

The development of distinguished photocatalysts with high photo-carrier disassociation and photo-redox power for efficient elimination pollutants in water is great significance but still a grand challenge. Herein, novel Cd0.5Zn0.5S/Bi2WO6 S-scheme heterojunction was built up by integrating Cd0.5Zn0.5S nanoparticles on Bi2WO6 microspheres via simple route. charge transfer mode substantially boosts the high-energetic electrons/holes spatial detachment conservation (reduction) (oxidation), respectively, as well effectively suppresses photo-corrosion Cd0.5Zn0.5S, rendering superior redox ability. optimal achieves exceptional visible-light-driven photocatalytic tetracycline degradation Cr(VI) reduction efficiency, 3.2 (1.9)-time 33.6 (1.6)-time stronger than that neat (Cd0.5Zn0.5S), while retaining stability reusability. Quenching test, mass spectrometry analysis, toxicity assessment based Quantitative Structure Activity Relationships. calculation unravel prime active substances, intermediates, photo-degradation pathway, intermediate eco-toxicity process. This research not only offers potential photocatalyst aquatic environment protection also promotes exploration powerful chalcogenides-based protection.

Language: Английский

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Ta3N5/CdS Core–Shell S-scheme Heterojunction Nanofibers for Efficient Photocatalytic Removal of Antibiotic Tetracycline and Cr(VI): Performance and Mechanism Insights

Advanced Fiber Materials, Journal Year: 2023, Volume and Issue: 5(3), P. 994 - 1007

Published: Feb. 16, 2023

Language: Английский

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A plasmonic S-scheme Au/MIL-101(Fe)/BiOBr photocatalyst for efficient synchronous decontamination of Cr(VI) and norfloxacin antibiotic

eScience, Journal Year: 2023, Volume and Issue: 4(2), P. 100208 - 100208

Published: Nov. 3, 2023

Present photocatalysts for the synchronous cleanup of pharmaceuticals and heavy metals have several drawbacks, including inadequate reactive sites, inefficient electron–hole disassociation, insufficient oxidation reduction power. In this research, we sought to address these issues by using a facile solvothermal-photoreduction route develop an innovative plasmonic S-scheme heterojunction, Au/MIL-101(Fe)/BiOBr. The screened-out Au/MIL-101(Fe)/BiOBr (AMB-2) works in durable high-performance manner both Cr(VI) norfloxacin (NOR) eradication under visible light, manifesting up 53.3 2 times greater NOR abatement rates, respectively, than BiOBr. Remarkably, AMB-2's ability remove Cr(VI)-NOR co-existence system is appreciably better sole-Cr(VI) environment; synergy among Cr(VI), NOR, AMB-2 results utilization photo-induced carriers, yielding desirable capacity decontaminating synchronously. integration MOF-based heterojunctions effect contributes markedly reinforced photocatalytic increasing number active augmenting visible-light absorbance, boosting efficient disassociation redistribution powerful photo-carriers, elevating generation substances. We provide details mechanism, decomposition process, bio-toxicity intermediates. This synergistic strategy modifying with noble metal opens new horizons devising excellent photosystems environment purification.

Language: Английский

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Novel Cd0.5Zn0.5S/Bi2MoO6 S-scheme heterojunction for boosting the photodegradation of antibiotic enrofloxacin: Degradation pathway, mechanism and toxicity assessment

Separation and Purification Technology, Journal Year: 2022, Volume and Issue: 304, P. 122401 - 122401

Published: Oct. 17, 2022

Language: Английский

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Floatable S-scheme Bi2WO6/C3N4/carbon fiber cloth composite photocatalyst for efficient water decontamination

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2023, Volume and Issue: 52, P. 239 - 251

Published: Sept. 1, 2023

Language: Английский

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A novel organic/inorganic S-scheme heterostructure of TCPP/Bi12O17Cl2 for boosting photodegradation of tetracycline hydrochloride: Kinetic, degradation mechanism, and toxic assessment

Applied Surface Science, Journal Year: 2022, Volume and Issue: 610, P. 155346 - 155346

Published: Oct. 30, 2022

Language: Английский

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MIL-101(Fe)/BiOBr S-scheme photocatalyst for promoting photocatalytic abatement of Cr(VI) and enrofloxacin antibiotic: Performance and mechanism

CHINESE JOURNAL OF CATALYSIS (CHINESE VERSION), Journal Year: 2023, Volume and Issue: 51, P. 101 - 112

Published: Aug. 1, 2023

Language: Английский

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Chemically bonded Mn0.5Cd0.5S/BiOBr S-scheme photocatalyst with rich oxygen vacancies for improved photocatalytic decontamination performance

Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(3), P. 100183 - 100183

Published: Feb. 20, 2024

Devising exceptional S-scheme heterojunction photocatalysts utilized in annihilating pharmaceuticals and chromium contamination is significant for addressing the problem of global water pollution. In this work, a chemically bonded Mn0.5Cd0.5S/BiOBr heterostructure with oxygen vacancies ingeniously developed through facile in-situ solvothermal synthesis. The designed exhibits eminently reinforced photo-activity destruction tetracycline hydrochloride Cr (VI) as compared its individual components. This substantial photo-redox performance amelioration benefitted from creation an intense internal electric field (IEF) via supplying powerful driving force migration highway by interfacial chemical bond to foster electron/hole disintegration. More intriguingly, IEF at hetero-interface drives fast consumption photo-induced holes Mn0.5Cd0.5S photoelectrons BiOBr, profoundly boosting enrichment active photo-carriers sparing photo-corrosion Mn0.5Cd0.5S. Furthermore, anti-interference property can work efficiently real matrices. Multiple uses recycled Mn0·5Cd0·5S/BiOBr evidence prominent robustness stability. achievement indicates vast potential photosystems structural defects design photo-responsive materials effective wastewater treatment.

Language: Английский

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Dynamic semiconductor-electrolyte interface for sustainable solar water splitting over 600 hours under neutral conditions

Science Advances, Journal Year: 2023, Volume and Issue: 9(1)

Published: Jan. 4, 2023

Photoelectrochemical (PEC) water splitting that functions in pH-neutral electrolyte attracts increasing attention to energy demand sustainability. Here, we propose a strategy situ form NiB layer by tuning the composition of neutral with additions nickel and borate species, which improves PEC performance BiVO 4 photoanode. The NiB/BiVO exhibits photocurrent density 6.0 mA cm −2 at 1.23 V RHE an onset potential 0.2 under 1 sun illumination. photoanode displays photostability over 600 hours electrolyte. additive Ni 2+ electrolyte, efficiently inhibits dissolution NiB, can accelerate photogenerated charge transfer enhance oxidation kinetics. species B─O bonds act as promoter catalyst activity accelerating proton-coupled electron transfer. synergy effect both suppresses surface recombination photocorrosion .

Language: Английский

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Ultrafast Combustion Synthesis of Robust and Efficient Electrocatalysts for High-Current-Density Water Oxidation

ACS Nano, Journal Year: 2023, Volume and Issue: 17(2), P. 1701 - 1712

Published: Jan. 9, 2023

The scalable production of inexpensive, efficient, and robust catalysts for oxygen evolution reaction (OER) that can deliver high current densities at low potentials is critical the industrial implementation water splitting technology. Herein, a series metal oxides coupled with Fe

Language: Английский

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