High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites
Abstract The polyaniline/graphite oxide (PANI/GO) nanocomposite was prepared by the in situ chemical polymerisation method. The synthesis involved the formation of dark green coloured polyaniline/graphite oxide composite. The crystalline structure and morphology of the composite were studied using U...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-09-01
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| Series: | IET Nanodielectrics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/nde2.12025 |
| _version_ | 1828098932813594624 |
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| author | Shubha L.N. ChandraBabu Putta |
| author_facet | Shubha L.N. ChandraBabu Putta |
| author_sort | Shubha L.N. |
| collection | DOAJ |
| description | Abstract The polyaniline/graphite oxide (PANI/GO) nanocomposite was prepared by the in situ chemical polymerisation method. The synthesis involved the formation of dark green coloured polyaniline/graphite oxide composite. The crystalline structure and morphology of the composite were studied using UV‐visible spectroscopy (UV), X‐ray diffraction (XRD) and transmission electron microscopy (TEM).The characteristic peaks in XRD and UV‐visible spectra confirmed the formation of the PANI/GO nanocomposite. DC conductivity measurements were performed using a two‐probe method. Dielectric responses of the composites were investigated in the frequency range100 MHz to 3 GHz by the RF impedance analyser. The dielectric constant ϵ′(w) and dielectric loss ϵ′′(w) were investigated. It was observed that the dielectric constant ϵ′(w) and dielectric loss ϵ′′(w) decreased with an increase in frequencies (for different wt % of GO). The antibacterial activity of this composite was examined. |
| first_indexed | 2024-04-11T08:09:38Z |
| format | Article |
| id | doaj.art-dcc914b466a84677bb5c1407092b34d5 |
| institution | Directory Open Access Journal |
| issn | 2514-3255 |
| language | English |
| last_indexed | 2024-04-11T08:09:38Z |
| publishDate | 2021-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Nanodielectrics |
| spelling | doaj.art-dcc914b466a84677bb5c1407092b34d52022-12-22T04:35:26ZengWileyIET Nanodielectrics2514-32552021-09-014315516110.1049/nde2.12025High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocompositesShubha L.N.0ChandraBabu Putta1Department of Electronics St Francis College for Women Secunderabad IndiaDepartment of Chemistry Central University of Tamil Nadu Thiruvarur IndiaAbstract The polyaniline/graphite oxide (PANI/GO) nanocomposite was prepared by the in situ chemical polymerisation method. The synthesis involved the formation of dark green coloured polyaniline/graphite oxide composite. The crystalline structure and morphology of the composite were studied using UV‐visible spectroscopy (UV), X‐ray diffraction (XRD) and transmission electron microscopy (TEM).The characteristic peaks in XRD and UV‐visible spectra confirmed the formation of the PANI/GO nanocomposite. DC conductivity measurements were performed using a two‐probe method. Dielectric responses of the composites were investigated in the frequency range100 MHz to 3 GHz by the RF impedance analyser. The dielectric constant ϵ′(w) and dielectric loss ϵ′′(w) were investigated. It was observed that the dielectric constant ϵ′(w) and dielectric loss ϵ′′(w) decreased with an increase in frequencies (for different wt % of GO). The antibacterial activity of this composite was examined.https://doi.org/10.1049/nde2.12025antibacterial activityconducting polymerscrystal structuredielectric losseselectrical conductivityfilled polymers |
| spellingShingle | Shubha L.N. ChandraBabu Putta High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites IET Nanodielectrics antibacterial activity conducting polymers crystal structure dielectric losses electrical conductivity filled polymers |
| title | High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| title_full | High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| title_fullStr | High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| title_full_unstemmed | High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| title_short | High‐frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| title_sort | high frequency measurement of dielectric permittivity and antimicrobial properties of polyaniline and graphite oxide nanocomposites |
| topic | antibacterial activity conducting polymers crystal structure dielectric losses electrical conductivity filled polymers |
| url | https://doi.org/10.1049/nde2.12025 |
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