Zhuoyu Yang , Weiqing Liu , Ligang Yuan , Wenhao Chen , Gaigai Ma , Jiayi Xu , Qiang Wu
{"title":"Closed loop acquisition of multi-levels humidity sensors by spontaneous optimization TiO2/Ti3C2Tx heterojunction without artificial intervention","authors":"Zhuoyu Yang , Weiqing Liu , Ligang Yuan , Wenhao Chen , Gaigai Ma , Jiayi Xu , Qiang Wu","doi":"10.1016/j.snb.2025.137426","DOIUrl":null,"url":null,"abstract":"<div><div>Finding a simple way to improve the performance of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> humidity sensors is a huge challenge. Unlike the complex preparation process in the past, we reported on different levels of humidity sensors that can be obtained during the oxidation process of few-layer Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> without artificial intervention. The Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> content <em>m</em> in the oxidation products of anatase TiO<sub>2</sub>/<em>m</em>Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> could be readily optimized by monitoring the storage time. A small portion of the surface of Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> was transformed into rutile TiO<sub>2</sub> by ultraviolet ozone (UV) irradiation, and a rutile-anatase TiO<sub>2</sub>/<em>m</em>Ti<sub>3</sub>C<sub>2</sub>T<sub>x</sub> triple junction material is obtained. The corresponding sensor exhibits different levels of sensing performance. In addition, a new sensing mechanism that gradually degrades from inductance characteristics to capacitive characteristics has been revealed. The closed-loop recycling mode without material loss designed in this work is also expected to solve the reuse problem of Mxene waste after oxidation.</div></div>","PeriodicalId":425,"journal":{"name":"Sensors and Actuators B: Chemical","volume":"431 ","pages":"Article 137426"},"PeriodicalIF":3.7000,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensors and Actuators B: Chemical","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925400525002011","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/12 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Finding a simple way to improve the performance of Ti3C2Tx humidity sensors is a huge challenge. Unlike the complex preparation process in the past, we reported on different levels of humidity sensors that can be obtained during the oxidation process of few-layer Ti3C2Tx without artificial intervention. The Ti3C2Tx content m in the oxidation products of anatase TiO2/mTi3C2Tx could be readily optimized by monitoring the storage time. A small portion of the surface of Ti3C2Tx was transformed into rutile TiO2 by ultraviolet ozone (UV) irradiation, and a rutile-anatase TiO2/mTi3C2Tx triple junction material is obtained. The corresponding sensor exhibits different levels of sensing performance. In addition, a new sensing mechanism that gradually degrades from inductance characteristics to capacitive characteristics has been revealed. The closed-loop recycling mode without material loss designed in this work is also expected to solve the reuse problem of Mxene waste after oxidation.
期刊介绍：
Sensors & Actuators, B: Chemical is an international journal focused on the research and development of chemical transducers. It covers chemical sensors and biosensors, chemical actuators, and analytical microsystems. The journal is interdisciplinary, aiming to publish original works showcasing substantial advancements beyond the current state of the art in these fields, with practical applicability to solving meaningful analytical problems. Review articles are accepted by invitation from an Editor of the journal.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
