Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption
In this study, keratins were extracted from pig nail waste via the reduction method for the first time, using L-cysteine as the reductant and urea as the lytic agent. Nylon6 and pig nail keratin were successfully combined via electrospinning to generate a series of nylon6/pig nail keratin nanofibers...
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| Format: | Article |
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MDPI AG
2023-01-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/2/467 |
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| author | Lanlan Wei Di Wang Zhiheng Liao Zexuan Gong Wenwen Zhao Jinyan Gu Yan Li Jingjun Li |
| author_facet | Lanlan Wei Di Wang Zhiheng Liao Zexuan Gong Wenwen Zhao Jinyan Gu Yan Li Jingjun Li |
| author_sort | Lanlan Wei |
| collection | DOAJ |
| description | In this study, keratins were extracted from pig nail waste via the reduction method for the first time, using L-cysteine as the reductant and urea as the lytic agent. Nylon6 and pig nail keratin were successfully combined via electrospinning to generate a series of nylon6/pig nail keratin nanofibers with a variety of keratin concentrations (0% to 8%, <i>w</i>/<i>w</i>). From the results, it was found that the best concentration was 6% (<i>w</i>/<i>w</i>). The morphologies of the electrospun nanofibers were examined via scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structural properties were characterized using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD), and the thermal properties were described using thermo-gravimetric analysis (TGA). These results confirmed that the nanofibers were composed of both polymeric phases. Finally, copper (II) was used as a model ion, and the nanofiber membranes exhibited a strong adsorption affinity for metal ions in the water samples. This study provides an important foundation for the application of nanofiber membranes in metal adsorption. |
| first_indexed | 2024-03-09T11:23:36Z |
| format | Article |
| id | doaj.art-a38b832da9dc4deab0a3c435365f6392 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T11:23:36Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-a38b832da9dc4deab0a3c435365f63922023-12-01T00:10:38ZengMDPI AGPolymers2073-43602023-01-0115246710.3390/polym15020467Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) AdsorptionLanlan Wei0Di Wang1Zhiheng Liao2Zexuan Gong3Wenwen Zhao4Jinyan Gu5Yan Li6Jingjun Li7College of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaCollege of Food Engineering, Anhui Science and Technology University, Chuzhou 233100, ChinaIn this study, keratins were extracted from pig nail waste via the reduction method for the first time, using L-cysteine as the reductant and urea as the lytic agent. Nylon6 and pig nail keratin were successfully combined via electrospinning to generate a series of nylon6/pig nail keratin nanofibers with a variety of keratin concentrations (0% to 8%, <i>w</i>/<i>w</i>). From the results, it was found that the best concentration was 6% (<i>w</i>/<i>w</i>). The morphologies of the electrospun nanofibers were examined via scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structural properties were characterized using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD), and the thermal properties were described using thermo-gravimetric analysis (TGA). These results confirmed that the nanofibers were composed of both polymeric phases. Finally, copper (II) was used as a model ion, and the nanofiber membranes exhibited a strong adsorption affinity for metal ions in the water samples. This study provides an important foundation for the application of nanofiber membranes in metal adsorption.https://www.mdpi.com/2073-4360/15/2/467pig nailskeratinelectrospinningnanofibercopper (II) ion adsorption |
| spellingShingle | Lanlan Wei Di Wang Zhiheng Liao Zexuan Gong Wenwen Zhao Jinyan Gu Yan Li Jingjun Li Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption Polymers pig nails keratin electrospinning nanofiber copper (II) ion adsorption |
| title | Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption |
| title_full | Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption |
| title_fullStr | Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption |
| title_full_unstemmed | Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption |
| title_short | Extraction of Keratin from Pig Nails and Electrospinning of Keratin/Nylon6 Nanofibers for Copper (II) Adsorption |
| title_sort | extraction of keratin from pig nails and electrospinning of keratin nylon6 nanofibers for copper ii adsorption |
| topic | pig nails keratin electrospinning nanofiber copper (II) ion adsorption |
| url | https://www.mdpi.com/2073-4360/15/2/467 |
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