Gas sensing performance regulating of ZIF-8 encapsulated WO3 nanosheets

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-10-02 DOI:10.1016/j.ceramint.2024.10.010

Lingyao Duan , He Liu , Kedong Xia , Zhenzhen Guo , Yunling Li , Shaoxin Deng , Luguo Sun , Zhenyu Hou

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引用次数: 0

Abstract

Reasonably regulating the adsorption properties on the surface of metal oxide semiconductors (MOS) to enhance sensor selectivity remains a challenge, limiting their application in detecting diseases biomarkers in human exhaled gas. To address this, we proposed a metal-organic frameworks (MOFs) encapsulated strategy to provide a gas-selective permeable nano-filtration layer for MOS gas sensors. By adjusting the coating thickness of ZIF-8, we successfully modulate the sensing properties of WO₃ to different potential biomarkers. The optimized WO₃/ZIF-8 composite shows improved selectivity and response to various disease biomarkers compared to WO₃ alone. The unique porous structure of ZIF-8 and the heterojunction of WO₃/ZIF-8 synergistically promote the gas adsorption performance. QCM test results confirm that ZIF-8 modification effectively regulates gas adsorption on the WO₃ surface. This study provides a valuable reference for designing exhaled gas sensor arrays for detecting serious diseases.

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调节 ZIF-8 封装 WO3 纳米片的气体传感性能

合理调节金属氧化物半导体（MOS）表面的吸附特性以提高传感器的选择性仍然是一项挑战，这限制了它们在检测人体呼出气体中疾病生物标记物方面的应用。为此，我们提出了一种金属有机框架（MOFs）封装策略，为 MOS 气体传感器提供气体选择性渗透纳米过滤层。通过调整 ZIF-8 的涂层厚度，我们成功地调节了 WO₃ 对不同潜在生物标记物的传感特性。与单独使用 WO₃ 相比，经过优化的 WO₃/ZIF-8 复合材料对各种疾病生物标记物的选择性和响应都有所提高。ZIF-8 的独特多孔结构和 WO3/ZIF-8 的异质结合协同促进了气体吸附性能。QCM 测试结果证实，ZIF-8 改性可有效调节 WO₃ 表面的气体吸附。这项研究为设计用于检测严重疾病的呼出气体传感器阵列提供了有价值的参考。

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.