The use of peanut shells as a bio-template to prepare K-doped In2O3 porous sheets for chlorine detection

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 pr...

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Bibliographic Details
Published in:RSC advances 2024-10, Vol.14 (44), p.32661-32667
Main Authors: Zhu, Lin, Han, Heyong
Format: Article
Language:English
Subjects:
Chemistry
Chlorine
Indium oxides
Lattice vacancies
Low concentrations
Online Access:Get full text
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Summary: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.
ISSN:2046-2069
2046-2069
DOI:10.1039/d4ra05208k