Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO4 Nanomaterials

Nanomaterials, Год журнала: 2025, Номер 15(2), С. 127 - 127

Опубликована: Янв. 16, 2025

In this study, square-star-shaped leaf-like BiVO4 nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials thoroughly investigated. Morphological analysis revealed that prepared at different reaction temperatures exhibited structures, with most regular dense structures formed 150 °C, exhibiting large specific surface area 2.84 m2/g. response gas sensors to target gases was evaluated, results showed sensor strong NH3. At optimal operating temperature 300 its sensitivity 5 ppm NH3 reached 13.3, time 28 s recovery 16 s. Moreover, excellent repeatability anti-interference performance. These findings indicate holds great potential in environmental monitoring industrial safety detection, offering new insights for development high-performance sensors.

Язык: Английский

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Nitrogen-Doped Graphyne as a Promising Material for Sensing Volatile Organic Compounds in Human Breath

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Март 24, 2025

Using density functional theory and the nonequilibrium Green function method, interaction between two-dimensional nitrogen-doped graphyne (N-GY) volatile organic compounds (ethanol, ethylene glycol, acetone, toluene) was investigated, potential application of N-GY for sensing biomarkers exhaled by human breath explored. The is a direct band gap semiconductor with width 0.408 eV. bottom conduction top valence are both located at Γ point. All target (VOCs) in physical adsorption states. In order to verify mechanism VOCs, Bader charge transfer, distance, work function, electron localization difference, energy structure, states were analyzed. At same time, I–V relationship VOCs molecules before after calculated using NEGF method. results show that 0.5 V bias voltage under armchair direction, can well distinguish four gas has highest sensitivity acetone 81%. Therefore, monolayer candidate material analyzing body as early screening diabetes.

Язык: Английский

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Fabrication of flexible MoS2 sensors for high-performance detection of ethanol vapor at room temperature

Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116531 - 116531

Опубликована: Апрель 1, 2025

Язык: Английский

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Study of the thermal decomposition of ammonium tetrathiomolybdate, (NH4)2MoS4), in H2 and H2O media by quasi in-situ photoelectron spectroscopy (XPS/UPS)

Applied Surface Science, Год журнала: 2024, Номер 682, С. 161644 - 161644

Опубликована: Окт. 29, 2024

Язык: Английский

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DFT study of the structures and electronic properties of Au cluster– and Pt cluster–functionalized BC3 nanosheets and their effects on sensing and adsorption of volatile organic compounds

Journal of Nanoparticle Research, Год журнала: 2024, Номер 26(11)

Опубликована: Ноя. 1, 2024

Язык: Английский

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Acetone Gas Sensor with SnO₂-Modified MoS₂ Nanospheres

Journal of The Electrochemical Society, Год журнала: 2024, Номер 171(11), С. 117524 - 117524

Опубликована: Ноя. 1, 2024

This study employed a hydrothermal method to prepare molybdenum disulfide (MoS 2 ) and two-step process synthesize tin oxide (SnO )-modified MoS nanostructured materials. The manufacturing is simple cost-effective, the produced materials were analyzed using various techniques confirm their high purity crystallinity. SnO -modified then utilized fabricate acetone gas sensors. surface area of , coupled with heterojunction interfaces formed by modification, enhances performance sensor. At 150 °C, sensor exhibits remarkable response 37.1% 100 ppm gas. dynamic response, including recovery times, also impressive. Gas sensors developed this material can effectively detect concentrations in environmental conditions.

Язык: Английский

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Resonator Based Sensing Towards Disease Diagnostics using Volatile Organic Compounds as Biomarkers

Sensors and Actuators A Physical, Год журнала: 2024, Номер unknown, С. 116119 - 116119

Опубликована: Дек. 1, 2024

Язык: Английский

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