Molecular Heptazine–Triazine Junction over Carbon Nitride Frameworks for Artificial Photosynthesis of Hydrogen Peroxide

Advanced Materials, Год журнала: 2023, Номер 35(48)

Опубликована: Сен. 29, 2023

Revealing the photocatalytic mechanism between various junctions and catalytic activities has become a hotspot in systems. Herein, an internal molecular heptazine/triazine (H/T) junction crystalline carbon nitride (HTCN) is constructed devoted to selective two-electron oxygen reduction reaction (2e- ORR) for efficient hydrogen peroxide (H2 O2 ) production. In-situ X-ray diffraction spectra under temperatures authenticate successful formation of H/T HTCN during calcining process rather than physically mixing. The increased surface photovoltage transient signals, decreased exciton binding energy undoubtably elucidate that obvious increasement carrier density diffusion capability photogenerated electrons are realized over HTCN. Additionally, analyses situ photoirradiated Kelvin probe force microscopy femto-second absorption reveal construction strong built-in-electric field existence majority long-lived shallow trapped associated with HTCN, respectively. Benefiting from these, results exhibit incredible improvement (96.5-fold) H2 This novel work provides comprehensive understanding reactive charges strengthening driving-force production, which opens potential applications enhancing PCN-based redox reactions.

Язык: Английский

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A regenerable Cu2O/BiOBr S-scheme heterojunction photocatalysts for efficient photocatalytic degradation of mixed organic pollutants

Separation and Purification Technology, Год журнала: 2023, Номер 313, С. 123447 - 123447

Опубликована: Фев. 22, 2023

Язык: Английский

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Rational design of 1D TaON nano-fibrous network decorated 2D BiOBr nanosheets for sustainable photocatalytic detoxification of antibiotics in wastewater via S-scheme heterostructure system

Journal of Water Process Engineering, Год журнала: 2023, Номер 54, С. 104059 - 104059

Опубликована: Июль 18, 2023

Язык: Английский

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Subsurface Mo Vacancy in Bismuth Molybdate Promotes Photocatalytic Oxidation of Lactate to Pyruvate

ACS Catalysis, Год журнала: 2024, Номер 14(3), С. 1977 - 1986

Опубликована: Янв. 22, 2024

Disclosing the role of subsurface metal defects in photocatalysts remains challenging, although defect engineering has been a fundamental method for manipulating photocatalytic transformation performance. Herein, Mo vacancy-rich Bi2MoO6 was prepared and its effects on photocatalysis revealed. The presence vacancy enhances separation efficiency photogenerated carriers through both holes captured by oxygen atoms neighboring generation an internal electric field, which is revealed experimental results density functional theory calculations. boosted electron–hole pairs improves 1O2, final active species oxidation ethyl lactate. conversion lactate reaches to >99% over after 3 h illumination, much higher than that bulk Bi2MoO6, gives only 28.6%. Meanwhile, yield pyruvate 90.2%, highest value heterogeneous systems using molecular as oxidant. Moreover, catalyst rather stable can be applied selective other hydroxyl compounds. This work unveils affecting separation, highlighting possible opportunities highly efficient organic transformation.

Язык: Английский

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Oxygen vacancy mediated bismuth-based photocatalysts

Advanced Powder Materials, Год журнала: 2024, Номер 3(4), С. 100201 - 100201

Опубликована: Апрель 9, 2024

Sunlight-driven photocatalysis, which can produce clean fuels and mitigate pollutant degradation, has received extensive research attention due to its potential for addressing both energy shortages environmental crises. Bismuth (Bi)-based photocatalysts with broad spectrum solar-light absorption tunable structures, exhibit promising applications in solar-driven photocatalysis. Oxygen vacancy (OV) engineering is a widely recognized strategy that shows great accelerating charge separation small molecule activation. Based on OV engineering, this review focuses Bi-based provides comprehensive overview including synthetic methods, regulation strategies, photocatalytic field. The methods of OVs (BPOVs) are classified into hydrothermal, solvothermal, UV light reduction, calcination, chemical etching, mechanical based different reaction types, provide the possibility structural BPOVs, dimensional regulation, creation, elemental doping, heterojunction fabrication. Furthermore, also highlights CO2 N2 fixation, H2 generation, O2 evolution, cancer therapy, bacteria inactivation. Finally, conclusion prospects toward future development BPOVs presented.

Язык: Английский

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Photothermal fabrics for solar-driven seawater desalination

Progress in Materials Science, Год журнала: 2024, Номер unknown, С. 101407 - 101407

Опубликована: Ноя. 1, 2024

Язык: Английский

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3D-Printed photocatalysts for revolutionizing catalytic conversion of solar to chemical energy

Progress in Materials Science, Год журнала: 2025, Номер 151, С. 101427 - 101427

Опубликована: Янв. 7, 2025

Язык: Английский

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Enhanced photocatalytic N2 fixation and water purification using Bi/ZnSnO3 composite: Mechanistic insights and novel applications

Journal of Industrial and Engineering Chemistry, Год журнала: 2023, Номер 132, С. 135 - 147

Опубликована: Ноя. 4, 2023

Язык: Английский

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Developing a magnetic bismuth-based quaternary semiconductor boosted by plasmonic action for photocatalytic detoxification of Cr(VI) and norfloxacin antibiotic under simulated solar irradiation: Synergistic work and radical mechanism

Journal of Alloys and Compounds, Год журнала: 2023, Номер 958, С. 170521 - 170521

Опубликована: Май 10, 2023

Язык: Английский

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A review of interface engineering characteristics for high performance perovskite solar cells

Deleted Journal, Год журнала: 2024, Номер 2, С. 100005 - 100005

Опубликована: Апрель 25, 2024

Язык: Английский

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