Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature
High temperature is required in carbon fiber synthesis in the carbonization step. However, direct high-temperature heating without the presence of additive materials would affect the yield and structure of carbon fibers produced. Thus, this study aims to synthesize carbon fibers from poly-vinyl alco...
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| Format: | Article |
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MDPI AG
2022-01-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/3/446 |
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| author | Saharman Gea Boy Attaurrazaq Suhut Alexander Situmorang Averroes Fazlur Rahman Piliang Sunit Hendrana Stergios Goutianos |
| author_facet | Saharman Gea Boy Attaurrazaq Suhut Alexander Situmorang Averroes Fazlur Rahman Piliang Sunit Hendrana Stergios Goutianos |
| author_sort | Saharman Gea |
| collection | DOAJ |
| description | High temperature is required in carbon fiber synthesis in the carbonization step. However, direct high-temperature heating without the presence of additive materials would affect the yield and structure of carbon fibers produced. Thus, this study aims to synthesize carbon fibers from poly-vinyl alcohol (PVA), as the precursor and reducing agent, using silver nanoparticles (SNP) from silver nitrate (AgNO<sub>3</sub>) as additives. The pre-treatment of PVA was performed in three steps, i.e., mixing PVA/AgNO<sub>3</sub>, electrospinning, and iodination. The interaction of PVA and AgNO<sub>3</sub> was assessed by FTIR, and SEM was used to characterize the electro-spun fibers prior and after iodination; Raman spectrophotometer was carried out to confirm the yield of carbon fibers. There was reduction in oxygen groups (3000–3800 cm<sup>−1</sup>) and emergence of –C=O (1100 cm<sup>−1</sup>) and –C=C– (1627 cm<sup>−1</sup>) functional groups, indicating formation of carbon layers. Based on the DT/GA results, the silver nanoparticles reduce the need of high temperature with optimum carbonization at 350 °C and lead to the formation of more regular graphene layers. Graphene layers with a size distribution of 0.438 nm and well-organized structures were successfully formed, and the Raman shifting showed higher intensities of G and G’ bands in the presence of Ag. Based on DT/GA results, the yield of carbon fibers with iodinated PVA fibers and SNP as additive had higher rates around 800 µg/min, reaching 33% at 500 °C. Thus, it is demonstrated that iodinated PVA/AgNO<sub>3</sub> samples can significantly improve carbon fiber yield at low temperatures. |
| first_indexed | 2024-03-09T23:17:01Z |
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| id | doaj.art-d39e199b1bd34f79a20e053910342189 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T23:17:01Z |
| publishDate | 2022-01-01 |
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| series | Polymers |
| spelling | doaj.art-d39e199b1bd34f79a20e0539103421892023-11-23T17:33:57ZengMDPI AGPolymers2073-43602022-01-0114344610.3390/polym14030446Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low TemperatureSaharman Gea0Boy Attaurrazaq1Suhut Alexander Situmorang2Averroes Fazlur Rahman Piliang3Sunit Hendrana4Stergios Goutianos5Cellulosic and Functional Materials Research Centre, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan 20155, IndonesiaCellulosic and Functional Materials Research Centre, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan 20155, IndonesiaCellulosic and Functional Materials Research Centre, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan 20155, IndonesiaCellulosic and Functional Materials Research Centre, Universitas Sumatera Utara, Jl. Bioteknologi No. 1, Medan 20155, IndonesiaResearch Centre for Chemistry, Indonesian Institute of Sciences (LIPI), Kawasan Puspitek Gedung 452, Serpong, Tangerang Selatan, Banten 15310, IndonesiaDepartment of Manufacturing and Civil Engineering, Norwegian University of Science and Technology, NO-2802 Gjøvik, NorwayHigh temperature is required in carbon fiber synthesis in the carbonization step. However, direct high-temperature heating without the presence of additive materials would affect the yield and structure of carbon fibers produced. Thus, this study aims to synthesize carbon fibers from poly-vinyl alcohol (PVA), as the precursor and reducing agent, using silver nanoparticles (SNP) from silver nitrate (AgNO<sub>3</sub>) as additives. The pre-treatment of PVA was performed in three steps, i.e., mixing PVA/AgNO<sub>3</sub>, electrospinning, and iodination. The interaction of PVA and AgNO<sub>3</sub> was assessed by FTIR, and SEM was used to characterize the electro-spun fibers prior and after iodination; Raman spectrophotometer was carried out to confirm the yield of carbon fibers. There was reduction in oxygen groups (3000–3800 cm<sup>−1</sup>) and emergence of –C=O (1100 cm<sup>−1</sup>) and –C=C– (1627 cm<sup>−1</sup>) functional groups, indicating formation of carbon layers. Based on the DT/GA results, the silver nanoparticles reduce the need of high temperature with optimum carbonization at 350 °C and lead to the formation of more regular graphene layers. Graphene layers with a size distribution of 0.438 nm and well-organized structures were successfully formed, and the Raman shifting showed higher intensities of G and G’ bands in the presence of Ag. Based on DT/GA results, the yield of carbon fibers with iodinated PVA fibers and SNP as additive had higher rates around 800 µg/min, reaching 33% at 500 °C. Thus, it is demonstrated that iodinated PVA/AgNO<sub>3</sub> samples can significantly improve carbon fiber yield at low temperatures.https://www.mdpi.com/2073-4360/14/3/446carbon nanofiberselectrospinningiodinationPVA/AgNO<sub>3</sub> |
| spellingShingle | Saharman Gea Boy Attaurrazaq Suhut Alexander Situmorang Averroes Fazlur Rahman Piliang Sunit Hendrana Stergios Goutianos Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature Polymers carbon nanofibers electrospinning iodination PVA/AgNO<sub>3</sub> |
| title | Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature |
| title_full | Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature |
| title_fullStr | Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature |
| title_full_unstemmed | Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature |
| title_short | Carbon-Nano Fibers Yield Improvement with Iodinated Electrospun PVA/Silver Nanoparticle as Precursor via One-Step Synthesis at Low Temperature |
| title_sort | carbon nano fibers yield improvement with iodinated electrospun pva silver nanoparticle as precursor via one step synthesis at low temperature |
| topic | carbon nanofibers electrospinning iodination PVA/AgNO<sub>3</sub> |
| url | https://www.mdpi.com/2073-4360/14/3/446 |
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