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绿色、高效、可控地制备用于甲醇检测的In2O3均匀修饰MoS2纳米花

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-02-06 DOI:10.1063/5.0254686

Li Yin, Tengbiao Yu, Wantao Guo, Jinrui Liu, Hongyue Song, Hui He, Yongxing Lin

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引用次数: 0

摘要

以MoS2纳米花为底物，采用绿色、高效、可控的常压微波辅助法制备了In2O3均匀修饰的MoS2纳米花（In2O3/MoS2）。In2O3/MoS2纳米花由极薄的MoS2纳米片组成，其中In2O3纳米颗粒均匀地附着在MoS2纳米片上。在In2O3/MoS2纳米花表面存在大量的p-n异质结和氧空位。In2O3/MoS2复合材料具有较高的灵敏度和选择性，在240℃下对甲醇蒸气的响应速度快，回收率高。In2O3/MoS2纳米花传感器对甲醇的响应速度快，回收率高，特别是对100 ppm甲醇的回收时间仅为15 s。In2O3/MoS2传感器也表现出优异的稳定性和可重复性，对甲醇具有显著的选择性。该研究为未来设计和制备用于甲醇检测的In2O3/MoS2复合材料提供了一种有前途的方法。

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Green, efficient, and controllable preparation of In2O3 uniformly modified MoS2 nanoflowers for methanol detection

In2O3 uniformly modified MoS2 (In2O3/MoS2) nanoflowers were synthesized via a green, efficient, and controllable normal-pressure microwave-assisted route and a subsequent calcination process, using MoS2 nanoflowers as substrates. The In2O3/MoS2 nanoflower is composed of extremely thin MoS2 nanosheets, among which In2O3 nanoparticles are uniformly attached to the MoS2 nanosheets. Numerous p–n heterojunctions and oxygen vacancies are present on the surfaces of the In2O3/MoS2 nanoflowers. The In2O3/MoS2 composites exhibited high sensitivity and selectivity, along with rapid response and recovery to methanol vapor at 240 °C. The In2O3/MoS2 nanoflower sensors exhibit rapid response and recovery rates toward methanol, particularly notable with a recovery time of only 15 s for 100 ppm methanol. The In2O3/MoS2 sensors also demonstrate excellent stability and reproducibility, with a remarkable selectivity toward methanol. This research presents a promising approach for the future design and preparation of In2O3/MoS2 composite for methanol detection.

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来源期刊

Applied Physics Letters

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.

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