Revolutionizing cancer monitoring with carbon-based electrochemical biosensors

Environmental Research, Journal Year: 2023, Volume and Issue: 239, P. 117368 - 117368

Published: Oct. 10, 2023

Language: Английский

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Synergistic coupling of 0D–2D heterostructure from ZnO and Ti3C2T MXene-derived TiO2 for boosted NO2 detection at room temperature

Nano Materials Science, Journal Year: 2023, Volume and Issue: 5(4), P. 421 - 428

Published: Feb. 25, 2023

2D MXenes are highly attractive for fabricating high-precision gas sensors operated at room temperature (RT) due to their high surface-to-volume ratio. However, the limited selectivity and low sensitivity still long-standing challenges further applications. Herein, self-assembly of 0D–2D heterostructure sensitive NO2 detection was achieved by integrating ZnO nanoparticles on Ti3C2Tx MXene-derived TiO2 nanosheets (designated as [email protected]−TiO2). can not only act spacers prevent restacking M−TiO2 ensure effective transfer molecules, but also enhance sensor through trapping effect electrons. Meanwhile, facilitate diffusion rapid response. Benefiting from synergistic individual components, protected]−TiO2 heterostructure-based revealed remarkable excellent concentration RT. This work may sensing application MXene derivative provide a new avenue development high-performance in safety assurance environmental monitoring.

Language: Английский

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ZrO₂/CeO₂-Heterostructured Nanocomposites for Enhanced Carbon Monoxide Gas Sensing

ACS Applied Nano Materials, Journal Year: 2023, Volume and Issue: 6(9), P. 7299 - 7309

Published: April 20, 2023

CeO2 and ZrO2 nanospheres were successfully prepared by hydrothermal synthesis. From the as-synthesized pristine nanostructures, ZrO2–CeO2 nanocomposite heterostructures with different weight percent ratios of 2.5, 5, 7.5, 10% mechanically. The morphology structural characteristics metal oxides nanocomposites investigated X-ray diffraction, scanning electron microscopy, transmission microscopy studies. UV–visible diffuse reflectance spectroscopic technique revealed band gaps 2.95, 2.96, 2.91, 2.83 eV 2.5–10% composite heterostructures, respectively, which found to be smaller than that (3.03 eV). Furthermore, Brunauer–Emmett–Teller surface area studies enhanced areas 81.5, 67.6, 74.8, 58.4 m2/g for as compared pure having 53.2 m2/g. 7.5% ZrO2-decorated heterostructure manifested remarkable enhancement in sensing performance response 1475 displayed 205. improved sensor is likely have originated from decrease gap, area, existence large oxygen vacancies on surface, formation heterojunctions nanocomposites. Further, gas properties along mechanism are discussed detail.

Language: Английский

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The effects of Co doping on the gas sensing performance of In2O3 porous nanospheres

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 403, P. 135155 - 135155

Published: Dec. 19, 2023

Language: Английский

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Heterostructures of hollow Co3O4 nanocages wrapped in NiO cilia for conductometric NO2 sensing at room temperature

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 404, P. 135299 - 135299

Published: Jan. 9, 2024

Language: Английский

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