{"title":"The use of peanut shells as a bio-template to prepare K-doped In2O3 porous sheets for chlorine detection†","authors":"Lin Zhu and Heyong Han","doi":"10.1039/D4RA05208K","DOIUrl":null,"url":null,"abstract":"<p >Chlorine (Cl<small><sub>2</sub></small>) is highly toxic and pungent, and can cause irreversible harm to humans even at low concentrations. Therefore, it is significant to develop a sensor that is highly sensitive to trace amounts of Cl<small><sub>2</sub></small> leakage. In this work, inexpensive peanut shells are used as a biological template to prepare K-doped indium oxide (K-In<small><sub>2</sub></small>O<small><sub>3</sub></small>) porous sheets through a simple three-step process. The characterization results reveal the porous sheet microstructure of the prepared K-In<small><sub>2</sub></small>O<small><sub>3</sub></small> derived from the peanut shell bio-template, and the obtained material possesses rich oxygen vacancies and a high specific surface area. Gas-sensing tests demonstrate that the K-In<small><sub>2</sub></small>O<small><sub>3</sub></small> porous sheet sensor exhibits excellent sensitivity to low concentrations of Cl<small><sub>2</sub></small>.</p>","PeriodicalId":102,"journal":{"name":"RSC Advances","volume":null,"pages":null},"PeriodicalIF":3.9000,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ra/d4ra05208k?page=search","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"RSC Advances","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra05208k","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Chlorine (Cl2) is highly toxic and pungent, and can cause irreversible harm to humans even at low concentrations. Therefore, it is significant to develop a sensor that is highly sensitive to trace amounts of Cl2 leakage. In this work, inexpensive peanut shells are used as a biological template to prepare K-doped indium oxide (K-In2O3) porous sheets through a simple three-step process. The characterization results reveal the porous sheet microstructure of the prepared K-In2O3 derived from the peanut shell bio-template, and the obtained material possesses rich oxygen vacancies and a high specific surface area. Gas-sensing tests demonstrate that the K-In2O3 porous sheet sensor exhibits excellent sensitivity to low concentrations of Cl2.
期刊介绍:
An international, peer-reviewed journal covering all of the chemical sciences, including multidisciplinary and emerging areas. RSC Advances is a gold open access journal allowing researchers free access to research articles, and offering an affordable open access publishing option for authors around the world.