Dual interfacial electric fields in black phosphorus/MXene/MBene enhance broad-spectrum carrier migration efficiency of photocatalytic devices

Device, Год журнала: 2024, Номер 2(3), С. 100283 - 100283

Опубликована: Фев. 7, 2024

The formation of interfacial electric fields using semiconductors/co-catalysts can effectively improve the carrier migration efficiency photocatalytic devices. Herein, an ultrathin 2D/2D/2D black phosphorus/MXene/MBene (denoted as BP/Ti3C2/MoB) ternary heterojunction with enhanced charge transfer is designed dual fields. formed by BP/Ti3C2 and Ti3C2/MoB accelerate photogenerated transfer, change position d-band center Ti atoms, lower energy level antibonding state, enhance adsorption effect H∗ active species, which ultimately leads to significant enhancement activity. results show that optimum visible-light-induced H2 evolution rate BP/Ti3C2/MoB 8,624 μmol g−1 h−1, has a very high factor (∼1,563%) compared pure BP. charge-transfer pathways mechanism are further elucidated some state-of-the-art spectroscopic characterizations theoretical calculations.

Язык: Английский

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Synthesis and Photocatalytic Application of Magnetic CoFe₂O₄/Conjugated Poly(vinyl chloride) Derivative Nanocomposite

Langmuir, Год журнала: 2024, Номер 40(31), С. 16642 - 16652

Опубликована: Июль 25, 2024

CoFe2O4 has potential for application as a magnetically recoverable visible-light photocatalyst, but its photocatalytic activity is encumbered by the high recombination probability of photogenerated holes (h+) and electrons (e–). This work was undertaken to boost photocatalysis through coupling with conjugated poly(vinyl chloride) derivative (CPVC). An easily implementable solvothermal−liquid solid mixing−evaporation solvent−pyrolysis method exploited synthesize CoFe2O4/CPVC nanocomposites. The capabilities products were assessed photocatalyzing reduction Cr(VI) under (λ > 420 nm). results demonstrate that optimal nanocomposite (CoFe2O4/CPVC-2) markedly heightened (3.6 times CoFe2O4) competent reusability recoverable. Furthermore, CoFe2O4/CPVC-2 also shows superior performance toward treatment diluted Cr(VI)-containing passivation solution copper alloys. It deduced based on photoelectricity measurement increased chiefly attributed p–n heterojunction structure, which greatly elevates h+–e– separation transfer efficiency. When waste PVC plastic films (replacing new pure powder) utilized synthesis, obtained exhibited even better (4 CoFe2O4). not only made recoverable, efficient photocatalyst decontamination in water inspirational recycling produce high-valued photocatalysts.

Язык: Английский

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Porphyrin-based metal–organic frameworks for photo(electro)catalytic CO₂ reduction

Energy & Environmental Science, Год журнала: 2024, Номер 17(15), С. 5311 - 5335

Опубликована: Янв. 1, 2024

The panorama of the latest developments emerging porphyrin-based MOFs for photo(electro)catalytic CO 2 reduction is shown.

Язык: Английский

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Challenges in Photocatalytic Carbon Dioxide Reduction

Precision Chemistry, Год журнала: 2024, Номер 2(2), С. 49 - 56

Опубликована: Янв. 17, 2024

An energy crisis and significant anthropogenic CO

Язык: Английский

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MOF(Fe)-derived composites as a unique nanoplatform for chemo-photodynamic tumor therapy

Journal of Materials Chemistry B, Год журнала: 2022, Номер 10(42), С. 8760 - 8770

Опубликована: Янв. 1, 2022

Novel MnO 2 @NH -MIL101(Fe)@Ce6-F127 nanoparticles (MNMCF NPs) were synthesized using a facile solvothermal strategy, and can be used as multifunctional nanoplatforms for high-efficiency chemo-photodynamic synergistic antitumor therapy.

Язык: Английский

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Interior and Surface Synergistic Modifications Modulate the SnNb₂O₆/Ni-Doped ZnIn₂S₄ S-Scheme Heterojunction for Efficient Photocatalytic H₂ Evolution

Inorganic Chemistry, Год журнала: 2022, Номер 61(11), С. 4681 - 4689

Опубликована: Март 8, 2022

Interior and surface synergistic modifications can endow the photocatalytic reaction with tuned photogenerated carrier flow at atomic level. Herein, a new class of 2D/2D SnNb2O6/Ni-doped ZnIn2S4 (SNO/Ni-ZIS) S-scheme heterojunctions is synthesized by simple hydrothermal strategy, which was used to evaluate synergy between interior modifications. Theoretical calculations show that heterojunction boosts desorption H atoms for rapid H2 evolution. As result, 25% SNO/Ni0.4-ZIS exhibits significantly improved PHE activity under visible light, roughly 4.49 2.00 times stronger than single ZIS Ni0.4-ZIS, respectively. In addition, also shows superior structural stability. This work provides advanced insight developing high-performance systems from photocatalyst design mechanistic insight.

Язык: Английский

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Development of electroactive materials-based immunosensor towards early-stage cancer detection

Coordination Chemistry Reviews, Год журнала: 2022, Номер 471, С. 214723 - 214723

Опубликована: Авг. 4, 2022

Язык: Английский

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Facile synthesis of pure silicon zeolite-confined silver nanoparticles and their catalytic activity for the reduction of 4-nitrophenol and methylene blue

Separation and Purification Technology, Год журнала: 2022, Номер 307, С. 122727 - 122727

Опубликована: Ноя. 24, 2022

Язык: Английский

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Layered double hydroxides and their composites as high-performance photocatalysts for CO₂ reduction

EES Catalysis, Год журнала: 2023, Номер 1(4), С. 369 - 391

Опубликована: Янв. 1, 2023

The panorama of the latest developments LDH-based photocatalysts for CO 2 reduction is exhibited.

Язык: Английский

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Inorganic–organic hybrid quantum dots for AOP-mediated photodegradation of ofloxacin and para-nitrophenol in diverse water matrices

npj Clean Water, Год журнала: 2023, Номер 6(1)

Опубликована: Ноя. 16, 2023

Abstract Due to concerns about the accessibility of clean water and quality treated wastewater, developing a suitable solution enhance is critical. Thus, current study focused on synthesis cadmium-doped CdIn 2 S 4 incorporated in chitosan, forming Cd/CdIn @Ch quantum dots using solvothermal technique for efficient photodegradation hazardous pollutants like ofloxacin para-nitrophenol through H O -mediated AOP. were characterized by several advanced methods, including XRD, PL, UV-DRS, FTIR, SEM, HR-TEM, XPS, DSC, TGA, EDX, Elemental mapping analysis. The influence varying reaction parameters, such as effect organic compounds, inorganic ions, matrices, was also investigated. prepared composite showed outstanding efficiency 85.51 ± 1.35% 96.70 1.31%, with rate constant 0.02334 0.15134 min −1 , which 1.24 2.07 times higher than pristine para-nitrophenol, respectively. COD values reduced 80.67 1.67% 88.36 1.43% whereas TOC 73.49% 86.34%, respectively, from their initial values. improved performance ascribed encapsulation leading self-doping cadmium into photocatalyst, doping site can generate local electron accumulation point, improving charge separation efficacy surface mitigation capability chitosan nanosheets even further. scavenger experiments that hydroxyl superoxide radicals played significant part contaminants. Additionally, excellent constancy recyclable up six times, suggesting exceptional stability reusability manufactured photocatalyst. fabricated could be an photocatalyst removing wastewater near future.

Язык: Английский

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