CsPbBr₃ Quantum Dot Modified In₂O₃ Nanofibers for Effective Detection of ppb-Level HCHO at Room Temperature under UV Illumination

ACS Sensors, Год журнала: 2024, Номер 9(11), С. 6040 - 6050

Опубликована: Ноя. 13, 2024

The design of high-performance and low-power formaldehyde (HCHO) gas sensors is great interest to researchers for environmental monitoring human health. Herein, In

Язык: Английский

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Ultrasensitive acetone sensors based on bimetallic@In2O3 yolk-shell structures: From structural design to mechanism exploration

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Фев. 1, 2025

Язык: Английский

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The updated gas sensing performance of In2O3 porous nanospheres for ppb level formaldehyde by doping with Mo

Vacuum, Год журнала: 2025, Номер unknown, С. 114248 - 114248

Опубликована: Март 1, 2025

Язык: Английский

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Anchoring Ni atomic clusters on yolk-shell In2O3 microspheres for highly sensitive, ultra-rapid responding/recovering ppb-level NO2 detections

Chemical Engineering Journal, Год журнала: 2024, Номер 499, С. 156531 - 156531

Опубликована: Окт. 9, 2024

Язык: Английский

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Assembly of n-p In2O3-Co3O4 heterostructures and their surface and structural analyses towards trace level detection of acetone

Applied Surface Science, Год журнала: 2024, Номер 671, С. 160714 - 160714

Опубликована: Июль 14, 2024

The accurate identification and quantification of volatile organic compounds is imperative in addressing environmental concerns, medical diagnostics, industrial safety. Thus, the current study focuses on fabrication heterostructures based In2O3–p-type metal oxides (i.e., In2O3-CuO, In2O3-Co3O4, In2O3-Mn3O4, In2O3-NiO) utilizing a hydrothermal approach. Various techniques were utilized to characterize detail. Among tested sensors towards various analytes, In2O3-Co3O4-based sensor disclosed better response 2.3 ppm acetone (C3H6O) at 100 °C. also demonstrated outstanding sensitivity (2.38 ppm−1), an extremely low limit detection (0.142 ppb), humidity resistance, fast response-recovery time. improved C3H6O gas sensing performance could be associated with enhanced interfacial synergy In2O3-Co3O4 heterostructure creation oxygen vacancies, reduced band gap, higher specific surface area revealing additional active sites enable adequate molecules adsorption. work further discusses theoretical procedure that was evaluated using crystal field theory determine strength cobalt ions identify which electronic state mostly exploited form possible heterostructure. These results provide viable pathway regulate characteristics concentration for practical health assessment.

Язык: Английский

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Nanosheet-assembled hierarchical CeO2/Co3O4 heterostructures derived from bimetallic MOFs for enhanced CO detection

Sensors and Actuators B Chemical, Год журнала: 2024, Номер 423, С. 136754 - 136754

Опубликована: Окт. 9, 2024

Язык: Английский

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Recent Advances in Metal Oxide Semiconductor Heterojunctions for the Detection of Volatile Organic Compounds

Chemosensors, Год журнала: 2024, Номер 12(12), С. 244 - 244

Опубликована: Ноя. 22, 2024

The efficient detection of volatile organic compounds (VOCs) is critically important in the domains environmental protection, healthcare, and industrial safety. development metal oxide semiconductor (MOS) heterojunction gas-sensing materials considered one most effective strategies to enhance sensor performance. This review summarizes discusses types heterojunctions their working principles, enhancement strategies, preparation methodologies, applications acetone ethanol detection. To address constraints pertaining low sensitivity, sluggish response/recovery times, elevated operating temperatures that are inherent VOC sensors, several improvement methods proposed, including doping with metals like Ag Pd, incorporating additives such as MXene polyoxometalates, optimizing morphologies through a fine design, self-doping via oxygen vacancies. Furthermore, this work provides insights into challenges faced by MOSs heterojunction-based gas sensors outlines future research directions field. will contribute foundational theories overcome existing bottlenecks MOS technology while promoting its large-scale application disease screening or agricultural food quality assessments.

Язык: Английский

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Enhanced Oxygen Vacancy Formation in Pt-WO₃ via W–OH Bond Cleavage Using Water-Based One-Step Electrospinning for High-Performance Gas Sensors

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Фев. 27, 2025

Oxygen vacancies play a crucial role in charge transport and surface states semiconductor metal oxides, significantly influencing various research fields, such as photocatalysis gas sensor. Developing effective strategies to generate oxygen thereby enhance device performance is highly desirable. In this study, we proposed water-based one-step electrospinning method introduce hydroxyl groups, leading the synthesis of Pt-decorated WO3 nanofibers (Pt-WO3(H2O)) with increased vacancies. Density functional theory calculations revealed that dissociation energy W-OH lower than W-O bonds, promoting formation via bond cleavage. These reduced adsorption acetone on surface, enhancing interactions. Consequently, Pt-WO3(H2O) sensor exhibited an ultrahigh response 82 1.8 ppm at 300 °C, which was about 1 order magnitude higher one fabricated by conventional electrospinning. findings indicate technique for generating oxide nanofibers. Our high-performance sensor, capable detecting low concentrations, holds great potential applications noninvasive health screening.

Язык: Английский

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The multiple sensitization effects in La-doped In2O3 porous nanotubes enabling highly sensitive and selective detection of formaldehyde at low temperature

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179741 - 179741

Опубликована: Март 1, 2025

Язык: Английский

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Innovative Co3O4 nanosheet clusters: Harnessing abundant reactive sites for superior peroxymonosulfate activation and metronidazole degradation

Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106322 - 106322

Опубликована: Март 1, 2025

Язык: Английский

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