Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications

Abstract Humidity sensing has been offering a noticeable contribution in different industrial, medical, and agricultural activities. Here, graphene quantum dots doped with polyaniline (PANI) and MnO2 were successfully prepared. The synthesized system is exposed to a set of structural, morphological,...

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Main Authors: Mohamed Morsy, Islam Gomaa, Abd Elhamid M. Abd Elhamid, Heba Shawkey, Mohamed Aly Saad Aly, Amir Elzwawy
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-48928-2
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author Mohamed Morsy
Islam Gomaa
Abd Elhamid M. Abd Elhamid
Heba Shawkey
Mohamed Aly Saad Aly
Amir Elzwawy
author_facet Mohamed Morsy
Islam Gomaa
Abd Elhamid M. Abd Elhamid
Heba Shawkey
Mohamed Aly Saad Aly
Amir Elzwawy
author_sort Mohamed Morsy
collection DOAJ
description Abstract Humidity sensing has been offering a noticeable contribution in different industrial, medical, and agricultural activities. Here, graphene quantum dots doped with polyaniline (PANI) and MnO2 were successfully prepared. The synthesized system is exposed to a set of structural, morphological, and optical investigations. The apparent crystallite size is less than 30 nm, reflecting the nanoscale of the structure, and thus validating the preparation route as evident on XRD pattern. SEM images show a fibrous structure where polyaniline dominates and covers most of the structure’s surface. The evident bands of the FTIR spectrum are designated to the component used in synthesis confirming the chemical structure of the fabricated system. The humidity sensing study of the synthesized structure is carried out through a wide range of relative humidity (RH) levels range of 11–97%. The response and recovery times of the fabricated structure are found to be around 120 and 220s, respectively.
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spelling doaj.art-ed267424d0ad4e46ba713965e094647a2023-12-10T12:14:04ZengNature PortfolioScientific Reports2045-23222023-12-0113111510.1038/s41598-023-48928-2Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applicationsMohamed Morsy0Islam Gomaa1Abd Elhamid M. Abd Elhamid2Heba Shawkey3Mohamed Aly Saad Aly4Amir Elzwawy5Building Physics and Environment Institute, Housing and Building National Research Center (HBRC)Nanotechnology Research Centre (NTRC), The British University in Egypt (BUE)Nanotechnology Lab., Electronics Research InstituteMicroelectronics department, Electronics Research InstituteDepartment of Electrical and Computer Engineering at Georgia Tech Shenzhen Institute (GTSI), Tianjin UniversityCeramics Department, National Research Centre (NRC)Abstract Humidity sensing has been offering a noticeable contribution in different industrial, medical, and agricultural activities. Here, graphene quantum dots doped with polyaniline (PANI) and MnO2 were successfully prepared. The synthesized system is exposed to a set of structural, morphological, and optical investigations. The apparent crystallite size is less than 30 nm, reflecting the nanoscale of the structure, and thus validating the preparation route as evident on XRD pattern. SEM images show a fibrous structure where polyaniline dominates and covers most of the structure’s surface. The evident bands of the FTIR spectrum are designated to the component used in synthesis confirming the chemical structure of the fabricated system. The humidity sensing study of the synthesized structure is carried out through a wide range of relative humidity (RH) levels range of 11–97%. The response and recovery times of the fabricated structure are found to be around 120 and 220s, respectively.https://doi.org/10.1038/s41598-023-48928-2
spellingShingle Mohamed Morsy
Islam Gomaa
Abd Elhamid M. Abd Elhamid
Heba Shawkey
Mohamed Aly Saad Aly
Amir Elzwawy
Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
Scientific Reports
title Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
title_full Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
title_fullStr Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
title_full_unstemmed Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
title_short Ternary nanocomposite comprising MnO2, GQDs, and PANI as a potential structure for humidity sensing applications
title_sort ternary nanocomposite comprising mno2 gqds and pani as a potential structure for humidity sensing applications
url https://doi.org/10.1038/s41598-023-48928-2
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