Bismuth-based nanostructured photocatalysts for the remediation of antibiotics and organic dyes

Beilstein Journal of Nanotechnology, Journal Year: 2023, Volume and Issue: 14, P. 291 - 321

Published: March 3, 2023

A serious threat to human health and the environment worldwide, in addition global energy crisis, is increasing water pollution caused by micropollutants such as antibiotics persistent organic dyes. Nanostructured semiconductors advanced oxidation processes using photocatalysis have recently attracted a lot of interest promising green sustainable wastewater treatment method for cleaner environment. Due their narrow bandgaps, distinctive layered structures, plasmonic, piezoelectric ferroelectric properties, desirable physicochemical features, bismuth-based nanostructure photocatalysts emerged one most prominent study topics compared commonly used (TiO 2 ZnO). In this review, recent developments use based on bismuth (e.g., BiFeO 3 , Bi MoO 6 BiVO 4 WO S ) remove dyes from are thoroughly covered. The creation Z-schemes, Schottky junctions, heterojunctions, well morphological modifications, doping, other highlighted regarding fabrication with improved photocatalytic capabilities. discussion general mechanisms included, along potential antibiotic dye degradation pathways wastewater. Finally, areas that require additional attention usage removing pharmaceuticals textile wastewater, particularly real-world applications, addressed.

Language: Английский

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Recent advances in quantum dot catalysts for hydrogen evolution: Synthesis, characterization, and photocatalytic application

Carbon Energy, Journal Year: 2023, Volume and Issue: 5(9)

Published: Feb. 1, 2023

Abstract Photocatalytic water splitting is beneficial for the effective mitigation of global energy and environmental crises. Owing to multi‐exciton generation, impressive light harvesting, excellent photochemical properties, quantum dot (QD)‐based catalysts reveal a considerable potential in photocatalytic hydrogen (H 2 ) production compared with bulk competitors. In this review, we summarize recent advances QDs H by enumerating different synthetic characterization strategies QDs. Various QDs‐based photocatalysts are introduced summarized categories, role varied systems, as well mechanism key factors that enhance generation performance, discussed. Finally, conclusions future perspectives exploration highly efficient innovative applications highlighted.

Language: Английский

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Hydrogen Production by Water Splitting with Support of Metal and Carbon-Based Photocatalysts

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(4), P. 1221 - 1252

Published: Jan. 18, 2023

Hydrogen energy is environmental-friendly and considered an attractive alternative to fossil fuels. Among the feasible technologies for hydrogen generation, photocatalysis-derived from water splitting be optimal solution meeting long-term sustainability increased demands. In this context, various photocatalytic genres are proposed, with metal carbon-supported photocatalysts demonstrating greater comprehensiveness potential addressing solar-driven production water. Several important aspects of aforementioned reviewed in present work effort provide pertinent researchers new horizons more advanced performance. The review initiated by introducing primary principles photocatalysis, as well prerequisites generation focus then moves metal-based photocatalysts, where features these materials summarized. Related limitations also discussed, along proposed strategies that could potentially mitigate them. Similar systematic summaries made knowledge on carbon-based photocatalysts. concludes a discussion future research directions light bottlenecks currently encountered. With proper development, produce clean water, thereby fueling global development without causing environmental harm.

Language: Английский

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In situ cascade growth-induced strong coupling effect toward efficient photocatalytic hydrogen evolution of ReS2/ZnIn2S4

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 328, P. 122493 - 122493

Published: Feb. 20, 2023

Language: Английский

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Photogenerated Defect‐Transit Dual S‐Scheme Charge Separation for Highly Efficient Hydrogen Production

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(42)

Published: June 16, 2023

Abstract The rational design of a step‐scheme (S‐scheme) heterojunctions in hybrid semiconductors by avoiding unwanted charge transport paths is considered as an attractive way to achieve high photocatalytic activity hydrogen evolution reaction (HER). Here, dual S‐scheme heterojunction formed the lychee‐shaped W 18 O 49 /CdWO 4 /CdS nanostructures proposed for improving performance HER under visible light irradiation. remarkable attributed unique structure and effective separation photoinduced defect‐transit mechanism strong internal electric field. measurements X‐ray photoelectron spectroscopy (XPS), femtosecond transient absorption (fs‐TA) spectroscopy, electron paramagnetic resonance (EPR) further confirm carrier transfer pathways following mechanism. This research can provide new strategy designing improve through defect band engineering.

Language: Английский

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In-situ cation-exchange strategy for engineering single-atomic Co on TiO2 photoanode toward efficient and durable solar water splitting

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 330, P. 122630 - 122630

Published: March 14, 2023

Language: Английский

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Amorphization-induced reverse electron transfer in NiB cocatalyst for boosting photocatalytic H2 production

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 340, P. 123270 - 123270

Published: Sept. 7, 2023

Language: Английский

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Plasmonic Au Nanoparticle of a Au/TiO₂–C₃N₄ Heterojunction Boosts up Photooxidation of Benzyl Alcohol Using LED Light

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(25), P. 30161 - 30169

Published: June 19, 2023

Plasmonic Au nanoparticles (NPs) employing localized surface plasmon resonance excitation have exhibited superior visible light absorption for many organic transformations. In this work, we prepared a ternary composite catalyst comprising plasmonic NPs and 2D/2D TiO2-C3N4 heterojunction via photoreduction method of chloroauric acid in the presence TiO2-C3N4. The introduction nanogold particles embedded onto TiO2 can significantly improve photocatalytic performance during photooxidation benzyl alcohol to benzaldehyde under mild conditions (1 bar air, white LED irradiation at ambient temperature). productivity over Au/TiO2-C3N4 (0.25 mmolreacted BA gcat.-1 h-1) is found be ∼5.6, 8.3, 8.2-fold these Au/TiO2, TiO2-C3N4, C3N4-Au-TiO2 heterojunctions, respectively. Trapping experiments electron spin (ESR) spectroscopy confirm that superoxide (·O2-) hydroxyl radicals (·OH) act as reactive oxygen species photooxidation. Furthermore, experimental results combined with density functional theory calculations reveal chemisorbed population, vacancies, lifetime photoexcited electrons holes are largely improved by NPs. This study on composites provides some hints developing new efficient practical photocatalysts.

Language: Английский

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Photocatalytic material–microorganism hybrid systems in water decontamination

Trends in biotechnology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Reticular design and alkyne bridge engineering in donor–π–acceptor type conjugated microporous polymers for boosting photocatalytic hydrogen evolution

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(13), P. 7693 - 7710

Published: Jan. 1, 2024

Through the successful application of Suzuki and Sonogashira coupling reactions, we have synthesized Py–TPA Py–TB–TPA CMPs, demonstrating impressive hydrogen evolution rates (HER) 3633 16 700 μmol g −1 h , respectively.

Language: Английский

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