Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red
Gold nanoparticles (AuNPs) were synthesized under ambient conditions from chloroauric acid in aqueous solution at pH 4. Tannin-rich extract from Xylocarpus granatum bark was used as both reducing and capping agent, rapidly converting Au (I) salt to AuNPs. Transmission electron microscopy showed the...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2021/6380283 |
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| author | Penwisa Pisitsak Kwandee Chamchoy Varanrada Chinprateep Wiphawan Khobthong Pisutsaran Chitichotpanya Sarute Ummartyotin |
| author_facet | Penwisa Pisitsak Kwandee Chamchoy Varanrada Chinprateep Wiphawan Khobthong Pisutsaran Chitichotpanya Sarute Ummartyotin |
| author_sort | Penwisa Pisitsak |
| collection | DOAJ |
| description | Gold nanoparticles (AuNPs) were synthesized under ambient conditions from chloroauric acid in aqueous solution at pH 4. Tannin-rich extract from Xylocarpus granatum bark was used as both reducing and capping agent, rapidly converting Au (I) salt to AuNPs. Transmission electron microscopy showed the as-prepared AuNPs to be predominantly spherical, with an average diameter of 17 nm. The AuNPs were tested for catalytic reduction of Congo red (CR), a carcinogenic azo dye, in aqueous sodium borohydride solution. Cotton samples were coated with the AuNPs, taking on a reddish-purple color. The samples showed significantly reduced tearing strength after coating, though tensile strength was unaffected. UV-visible spectroscopy was used to determine the dye concentration in the water. CR degradation was observed only when AuNPs were present, and the efficiency of degradation was strongly linked to the AuNP loading. The AuNP-coated fabrics left only a 4.7% CR concentration in the solution after 24 h and therefore promise as a heterogeneous catalyst for degradation of CR in aqueous solution. |
| format | Article |
| id | doaj-art-9a2c75dfd4604066b441339a3f259e8c |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-9a2c75dfd4604066b441339a3f259e8c2025-02-03T01:13:07ZengWileyJournal of Nanotechnology1687-95031687-95112021-01-01202110.1155/2021/63802836380283Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo RedPenwisa Pisitsak0Kwandee Chamchoy1Varanrada Chinprateep2Wiphawan Khobthong3Pisutsaran Chitichotpanya4Sarute Ummartyotin5Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandDepartment of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani 12120, ThailandGold nanoparticles (AuNPs) were synthesized under ambient conditions from chloroauric acid in aqueous solution at pH 4. Tannin-rich extract from Xylocarpus granatum bark was used as both reducing and capping agent, rapidly converting Au (I) salt to AuNPs. Transmission electron microscopy showed the as-prepared AuNPs to be predominantly spherical, with an average diameter of 17 nm. The AuNPs were tested for catalytic reduction of Congo red (CR), a carcinogenic azo dye, in aqueous sodium borohydride solution. Cotton samples were coated with the AuNPs, taking on a reddish-purple color. The samples showed significantly reduced tearing strength after coating, though tensile strength was unaffected. UV-visible spectroscopy was used to determine the dye concentration in the water. CR degradation was observed only when AuNPs were present, and the efficiency of degradation was strongly linked to the AuNP loading. The AuNP-coated fabrics left only a 4.7% CR concentration in the solution after 24 h and therefore promise as a heterogeneous catalyst for degradation of CR in aqueous solution.http://dx.doi.org/10.1155/2021/6380283 |
| spellingShingle | Penwisa Pisitsak Kwandee Chamchoy Varanrada Chinprateep Wiphawan Khobthong Pisutsaran Chitichotpanya Sarute Ummartyotin Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red Journal of Nanotechnology |
| title | Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red |
| title_full | Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red |
| title_fullStr | Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red |
| title_full_unstemmed | Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red |
| title_short | Synthesis of Gold Nanoparticles Using Tannin-Rich Extract and Coating onto Cotton Textiles for Catalytic Degradation of Congo Red |
| title_sort | synthesis of gold nanoparticles using tannin rich extract and coating onto cotton textiles for catalytic degradation of congo red |
| url | http://dx.doi.org/10.1155/2021/6380283 |
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