A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications
This study aims to convert composite textile structures composed of nonwoven and woven fabrics produced from cotton–jute wastes into activated carbon textile structures and investigate the possibilities of using them for electromagnetic shielding applications. To this end, the novel contribution of...
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MDPI AG
2024-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/16/7/915 |
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| author | Sema Sert Şirin Siyahjani Gultekin Burak Gültekin Deniz Duran Kaya Ayşegül Körlü |
| author_facet | Sema Sert Şirin Siyahjani Gultekin Burak Gültekin Deniz Duran Kaya Ayşegül Körlü |
| author_sort | Sema Sert |
| collection | DOAJ |
| description | This study aims to convert composite textile structures composed of nonwoven and woven fabrics produced from cotton–jute wastes into activated carbon textile structures and investigate the possibilities of using them for electromagnetic shielding applications. To this end, the novel contribution of this study is that it shows that directly carbonized nonwoven textile via self-purging microwave pyrolysis can provide Electromagnetic Interference (EMI) shielding without any processing, including cleaning. Textile carbonization is generally achieved with conventional heating methods, using inert gas and long processing times. In the present study, nonwoven fabric from cotton–jute waste was converted into an activated carbon textile structure in a shorter time via microwaves without inert gas. Due to its polar structure, FeCl<sub>3</sub> has been used as a microwave absorbent, providing homogeneous heating in the microwave and acting as an activating agent to serve dual purposes in the carbonization process. The maximum surface area (789.9 m<sup>2</sup>/g) was obtained for 5% FeCl<sub>3</sub>. The carbonized composite textile structure has a maximum of 39.4 dB at 1 GHz of EMI shielding effectiveness for 10% FeCl<sub>3</sub>, which corresponds to an excellent grade for general use and a moderate grade for professional use, exceeding the acceptable range for industrial and commercial applications of 20 dB, according to FTTS-FA-003. |
| first_indexed | 2024-04-24T10:37:11Z |
| format | Article |
| id | doaj.art-cfdcb00773dc4b23a78d79caedfe8875 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-04-24T10:37:11Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-cfdcb00773dc4b23a78d79caedfe88752024-04-12T13:25:06ZengMDPI AGPolymers2073-43602024-03-0116791510.3390/polym16070915A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding ApplicationsSema Sert0Şirin Siyahjani Gultekin1Burak Gültekin2Deniz Duran Kaya3Ayşegül Körlü4Graduate School of Natural and Applied Sciences, Ege University, Bornova 35040, TürkiyeDepartment of Chemical Engineering, Canakkale Onsekiz Mart University, Canakkale 17020, TürkiyeSolar Energy Institute, Ege University, Bornova 35100, TürkiyeTextile Engineering Department, Engineering Faculty, Ege University, Bornova 35100, TürkiyeTextile Engineering Department, Engineering Faculty, Ege University, Bornova 35100, TürkiyeThis study aims to convert composite textile structures composed of nonwoven and woven fabrics produced from cotton–jute wastes into activated carbon textile structures and investigate the possibilities of using them for electromagnetic shielding applications. To this end, the novel contribution of this study is that it shows that directly carbonized nonwoven textile via self-purging microwave pyrolysis can provide Electromagnetic Interference (EMI) shielding without any processing, including cleaning. Textile carbonization is generally achieved with conventional heating methods, using inert gas and long processing times. In the present study, nonwoven fabric from cotton–jute waste was converted into an activated carbon textile structure in a shorter time via microwaves without inert gas. Due to its polar structure, FeCl<sub>3</sub> has been used as a microwave absorbent, providing homogeneous heating in the microwave and acting as an activating agent to serve dual purposes in the carbonization process. The maximum surface area (789.9 m<sup>2</sup>/g) was obtained for 5% FeCl<sub>3</sub>. The carbonized composite textile structure has a maximum of 39.4 dB at 1 GHz of EMI shielding effectiveness for 10% FeCl<sub>3</sub>, which corresponds to an excellent grade for general use and a moderate grade for professional use, exceeding the acceptable range for industrial and commercial applications of 20 dB, according to FTTS-FA-003.https://www.mdpi.com/2073-4360/16/7/915textile recyclingnonwovenmicrowave pyrolysisiron chlorideEMI shielding |
| spellingShingle | Sema Sert Şirin Siyahjani Gultekin Burak Gültekin Deniz Duran Kaya Ayşegül Körlü A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications Polymers textile recycling nonwoven microwave pyrolysis iron chloride EMI shielding |
| title | A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications |
| title_full | A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications |
| title_fullStr | A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications |
| title_full_unstemmed | A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications |
| title_short | A Facile Approach to Produce Activated Carbon from Waste Textiles via Self-Purging Microwave Pyrolysis and FeCl<sub>3</sub> Activation for Electromagnetic Shielding Applications |
| title_sort | facile approach to produce activated carbon from waste textiles via self purging microwave pyrolysis and fecl sub 3 sub activation for electromagnetic shielding applications |
| topic | textile recycling nonwoven microwave pyrolysis iron chloride EMI shielding |
| url | https://www.mdpi.com/2073-4360/16/7/915 |
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