Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties
The present research involves producing graphene oxide (GO) using the Hummers method, generating a composite using GO and PVA, and analyzing these composites’ structural and optical characteristics. PVA and GO were used in varied percentages to deal with the issue of how the features of GO/PVA alter...
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| Language: | English |
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MDPI AG
2023-10-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/7/5/92 |
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| author | Lala Gahramanli Mustafa Muradov Goncha Eyvazova Mahammad Baghir Baghirov Sevinj Mammadyarova Gunel Aliyeva Elman Hajiyev Faig Mammadov Stefano Bellucci |
| author_facet | Lala Gahramanli Mustafa Muradov Goncha Eyvazova Mahammad Baghir Baghirov Sevinj Mammadyarova Gunel Aliyeva Elman Hajiyev Faig Mammadov Stefano Bellucci |
| author_sort | Lala Gahramanli |
| collection | DOAJ |
| description | The present research involves producing graphene oxide (GO) using the Hummers method, generating a composite using GO and PVA, and analyzing these composites’ structural and optical characteristics. PVA and GO were used in varied percentages to deal with the issue of how the features of GO/PVA alter depending on concentration. The impact of thermal annealing on the structure and optical characteristics of GO/PVA materials at various concentrations were also investigated. UV-VIS was used to investigate the band gap value of GO/PVA composites. The band gap value changed due to an increase in the concentration of GO in the composites in the PVA and the impact of thermal annealing. The band gap value, specific resistance, and dielectric constant were all found to be well controlled by varying the thermal annealing temperature and the concentration of GO in this case. Differential Scanning Calorimetry (DSC) and thermogravimetric analysis (TGA) were performed on pure PVA and GO/PVA samples in various percentages of GO in order to examine the effect of temperature on the physical properties of (<i>n</i> = 1, 2, 3, 5, 20%) <i>n</i>GO%/PVA nanocomposites. Thermal stability increased as the fraction of GO in the PVA polymer matrix increased. |
| first_indexed | 2024-03-10T21:21:51Z |
| format | Article |
| id | doaj.art-b0f9f03a31a34474a98d513fe4625649 |
| institution | Directory Open Access Journal |
| issn | 2305-7084 |
| language | English |
| last_indexed | 2024-03-10T21:21:51Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj.art-b0f9f03a31a34474a98d513fe46256492023-11-19T16:03:26ZengMDPI AGChemEngineering2305-70842023-10-01759210.3390/chemengineering7050092Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical PropertiesLala Gahramanli0Mustafa Muradov1Goncha Eyvazova2Mahammad Baghir Baghirov3Sevinj Mammadyarova4Gunel Aliyeva5Elman Hajiyev6Faig Mammadov7Stefano Bellucci8Nano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanNano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanNano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanNano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanNano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanNano Research Laboratory, Baku State University, 23 Academik Zahid Khalilov Street, Baku AZ 1148, AzerbaijanInstitute of Physics, Azerbaijan National Academy of Science, H. Javid av. 131, Baku AZ 1143, AzerbaijanInstitute of Catalysis and Inorganic Chemistry, Azerbaijan National Academy of Science, H. Javid av.131, Baku AZ 1143, AzerbaijanINFN—Laboratori Nazionali di Frascati, Via E. Fermi 54, 00044 Frascati, ItalyThe present research involves producing graphene oxide (GO) using the Hummers method, generating a composite using GO and PVA, and analyzing these composites’ structural and optical characteristics. PVA and GO were used in varied percentages to deal with the issue of how the features of GO/PVA alter depending on concentration. The impact of thermal annealing on the structure and optical characteristics of GO/PVA materials at various concentrations were also investigated. UV-VIS was used to investigate the band gap value of GO/PVA composites. The band gap value changed due to an increase in the concentration of GO in the composites in the PVA and the impact of thermal annealing. The band gap value, specific resistance, and dielectric constant were all found to be well controlled by varying the thermal annealing temperature and the concentration of GO in this case. Differential Scanning Calorimetry (DSC) and thermogravimetric analysis (TGA) were performed on pure PVA and GO/PVA samples in various percentages of GO in order to examine the effect of temperature on the physical properties of (<i>n</i> = 1, 2, 3, 5, 20%) <i>n</i>GO%/PVA nanocomposites. Thermal stability increased as the fraction of GO in the PVA polymer matrix increased.https://www.mdpi.com/2305-7084/7/5/92GO/PVA nanocompositesthe influence of thermal annealingconcentrationphysical propertiesband gap value |
| spellingShingle | Lala Gahramanli Mustafa Muradov Goncha Eyvazova Mahammad Baghir Baghirov Sevinj Mammadyarova Gunel Aliyeva Elman Hajiyev Faig Mammadov Stefano Bellucci Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties ChemEngineering GO/PVA nanocomposites the influence of thermal annealing concentration physical properties band gap value |
| title | Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties |
| title_full | Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties |
| title_fullStr | Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties |
| title_full_unstemmed | Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties |
| title_short | Investigating the Effect of Thermal Annealing and Changing the Concentration of GO in GO/PVA Nanocomposites on Their Structural, Electrical, and Optical Properties |
| title_sort | investigating the effect of thermal annealing and changing the concentration of go in go pva nanocomposites on their structural electrical and optical properties |
| topic | GO/PVA nanocomposites the influence of thermal annealing concentration physical properties band gap value |
| url | https://www.mdpi.com/2305-7084/7/5/92 |
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