Highly responsive and swift recovery triethylamine gas sensor based on NiCo2O4-ZnO p-n heterojunction

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 410, С. 135666 - 135666

Опубликована: Март 19, 2024

Язык: Английский

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Environmental application of versatile Bi-based perovskite photocatalysts and their Z-scheme and S-scheme heterojunctions

Journal of environmental chemical engineering, Год журнала: 2024, Номер 12(5), С. 113309 - 113309

Опубликована: Июнь 15, 2024

Язык: Английский

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Synthesis of Bi2MoO6/Bi2O3 hollow microspheres for ultrafast triethylamine detection

Ceramics International, Год журнала: 2024, Номер 50(7), С. 12397 - 12404

Опубликована: Янв. 21, 2024

Язык: Английский

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Dual regulation of hierarchical porosity and heterogeneous interfaces in Cu-BTC/Bi₂MoO₆ for thermally-driven and UV-light-activated selective acetone sensing

Journal of Materials Chemistry A, Год журнала: 2024, Номер 12(11), С. 6318 - 6328

Опубликована: Янв. 1, 2024

A novel defective-Cu-BTC@Bi 2 MoO 6 (d-CuM@BMO) heterostructure was successfully fabricated through an etching-and-growth strategy, showing excellent selective and sensitive acetone sensing performances under the photoactivation of UV light.

Язык: Английский

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Well-designed g-C ₃N ₄ nanosheet incorporated Ag loaded Er _0.05La _0.95FeO ₃ heterojunctions for isoamyl alcohol detection

Journal of Advanced Ceramics, Год журнала: 2024, Номер 13(6), С. 736 - 745

Опубликована: Июнь 1, 2024

Considering that the volatile content of isoamyl alcohol will increase sharply on seventh day during wheat mildew, can be determined as an early biomarker mildew. Currently, there are only few sensors reported for detection, which still suffer from low sensitivity and poor moisture resistance. Herein, 5 at% Er@LaFeO₃ (ELFO) was enhanced by loading Ag nanoparticles surface ELFO microspheres while optimal operating temperature reduced. The resistance Ag/ELFO improved incorporation g-C₃N₄ nanosheets (NSs) through electrostatic self-assembly. Given requirement practical application in grain granaries, sensing behavior NSs incorporated Ag/ELFO-based sensor at 20% RH systematically studied, demonstrated excellent repeatability, long-term stability, superior selectivity (791 50 ppm) with a limit detection (LOD = 75 ppb). Furthermore, results different mildew stages further confirmed potential g-C₃N₄/Ag/ELFO-based monitoring stage wheat. This work may offer guidance enhancing gas-sensitive materials strategy employing composite nanomaterials.

Язык: Английский

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Heterostructures constructed by NiMoO4 functionalized 2D MoO3 nanosheets for ultrasensitive trimethylamine detection with ppb level detection

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 421, С. 136442 - 136442

Опубликована: Авг. 14, 2024

Язык: Английский

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Carbon quantum dots modification on hydrangea-like In2O3 for ppb-level formaldehyde detection: Experimental performance and theoretical insight

Applied Surface Science, Год журнала: 2024, Номер 656, С. 159678 - 159678

Опубликована: Фев. 11, 2024

Язык: Английский

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Influence of Preparation Method on Structure and Photocatalytic Performance of Bi2MoO6

Catalysts, Год журнала: 2025, Номер 15(3), С. 198 - 198

Опубликована: Фев. 20, 2025

The emergence of bismuth molybdate (Bi2MoO6) as a promising visible-light catalyst has prompted researchers to increasingly focus on its investigation. To elucidate the impact different preparation methods morphology and photocatalytic properties Bi2MoO6, samples were synthesized via solvothermal, in situ conversion, solution combustion, precipitation, sol-gel techniques. physicochemical Bi2MoO6 characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), particle size analysis (PSA), fluorescence, photocurrent measurements. materials’ ability degrade Rhodamine B (RhB) was evaluated. results demonstrated that crystallinity, morphology, bandgap width, photogenerated carrier recombination varied significantly depending method. Among these methods, solvothermal route proved most effective, yielding with highest activity, achieving 97.5% RhB degradation within 25 min light exposure. low rate attributed large specific surface area narrow (2.71 eV). This study provides valuable insights into preparing enhanced properties.

Язык: Английский

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Theoretical and Experimental Insights into the Chemiresistive Sensing Response of Graphene Quantum Dots: The Role of Oxygen Functional Groups

ACS Omega, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Developing sensitive sensors to trimethylamine (TMA) remains a topic of great interest in areas such as food quality analysis and disease biomarkers. To address this issue, chemiresistive were proposed using graphene quantum dots (GQDs) with different proportions hydroxyl (GQDs-OH), epoxy (GQDs-epoxy), carboxyl (GQDs-COOH) groups. These materials exhibited sensitivities TMA, GQDs-OH being the most sensitive, presenting detection limit 0.3 ppm response about 4 2.5 times higher than those GQDs-COOH GQDs-Epoxy, respectively. This difference sensitivity was elucidated by building, based on density functional theory calculations, potential energy curves interaction between TMA three GQD models. Noncovalent atoms molecular also used explain each model. Our results highlight that proportion oxygen groups has major role modulating against group providing greater sensitivity. through computational simulations, which explained lower other materials. work serves practical guide, demonstrating importance coupling experimental methods achieve deeper understanding sensing results.

Язык: Английский

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Metal oxide semiconductor-based heterojunctions synthesized by wet-chemical strategies for efficient volatile organic compounds detection

Coordination Chemistry Reviews, Год журнала: 2025, Номер 538, С. 216735 - 216735

Опубликована: Апрель 21, 2025

Язык: Английский

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