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| Preparation and Humidity Sensing Properties of MXene/CNF Composite Aerogels |
| Received:January 25, 2024 |
| DOI：10.11980/j.issn.0254-508X.2024.08.001 |
| Key Words:CNF MXene liquid nitrogen directional freezing aerogel humidity sensor |
| Fund Project:国家自然科学基金项目（22308333）； 浙江省“尖兵”“领雁”科技计划项目（2022C01066）。 |
| Author Name | Affiliation | Postcode | | SHEN Xiangling | School of Environmental and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023 | 310023 | | CHEN Guangjie | School of Environmental and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023 | 310023 | | GUO Daliang | School of Environmental and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023 | 310023 | | LI Jing | School of Environmental and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023 | 310023 | | TONG Xin | School of Environmental and Natural Resources, Zhejiang University of Science & Technology, Hangzhou, Zhejiang Province, 310023 | 310023 |
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| Abstract:In this study， the novel two-dimensional transition metal carbon and nitrogen material （MXene） was composited with cellulose nanofibers （CNF）， and four different kinds of CNF composite aerogel sensors were prepared after freeze-drying by the liquid nitrogen directional and non-directional pre-freezing methods. The impacts of various types of CNF and MXene， with different liquid nitrogen pre-freezing methods on the morphology and structure of the MXene/CNF composite aerogels were investigated. The results showed that the oriented monolayer MXene/TOCNF composite aerogel had the most excellent morphology. Additionally， the humidity sensitivity test was conducted at relative humidity levels ranging from 11%~97%. The results revealed a three times of increase in response value at relative humidity of 97% with MXene dosage of 10%， indicating superior sensitive of the sensor to high humidity. Furthermore， the sensors demonstrated overall stablility within 14 days. |
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