Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup>
In the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu<sup>2+<...
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MDPI AG
2020-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/1/83 |
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| author | Yesheng Wang Xueyi Dong Li Zhao Yun Xue Xihui Zhao Qun Li Yanzhi Xia |
| author_facet | Yesheng Wang Xueyi Dong Li Zhao Yun Xue Xihui Zhao Qun Li Yanzhi Xia |
| author_sort | Yesheng Wang |
| collection | DOAJ |
| description | In the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu<sup>2+</sup> and S<sup>2−</sup>, which could be used to detect these ions with naked eyes. In addition, the possible sensing mechanism was that Cu<sup>2+</sup> ions caused serious aggregation of carrageenan-AgNPs, which led to the color change of carrageenan-AgNPs. AgNPs were etched by S<sup>2−</sup> forming Ag<sub>2</sub>S, which played an important role in the determination of S<sup>2−</sup> ions. Furthermore, it has been successfully applied to the determination of Cu<sup>2+</sup> and S<sup>2−</sup> in tap water and lake water, showing its great potential for the analysis of environmental water samples. |
| first_indexed | 2024-12-13T01:12:54Z |
| format | Article |
| id | doaj.art-862eb0efacef448f9d9cc8bd69909eef |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-13T01:12:54Z |
| publishDate | 2020-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-862eb0efacef448f9d9cc8bd69909eef2022-12-22T00:04:25ZengMDPI AGNanomaterials2079-49912020-01-011018310.3390/nano10010083nano10010083Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup>Yesheng Wang0Xueyi Dong1Li Zhao2Yun Xue3Xihui Zhao4Qun Li5Yanzhi Xia6School of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaSchool of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaSchool of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaSchool of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaSchool of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaSchool of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, ChinaState Key Laboratory of Bio-Fibers and Eco-Textiles, Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, Qingdao University, Qingdao 266071, ChinaIn the present work, silver nanoparticles (AgNPs) were prepared by a simple and green method using carrageenan as reducing and capping agent. The as-synthesized carrageenan-AgNPs was demonstrated as an effective duel colorimetric sensing for selective and sensitive recognition of Cu<sup>2+</sup> and S<sup>2−</sup>, which could be used to detect these ions with naked eyes. In addition, the possible sensing mechanism was that Cu<sup>2+</sup> ions caused serious aggregation of carrageenan-AgNPs, which led to the color change of carrageenan-AgNPs. AgNPs were etched by S<sup>2−</sup> forming Ag<sub>2</sub>S, which played an important role in the determination of S<sup>2−</sup> ions. Furthermore, it has been successfully applied to the determination of Cu<sup>2+</sup> and S<sup>2−</sup> in tap water and lake water, showing its great potential for the analysis of environmental water samples.https://www.mdpi.com/2079-4991/10/1/83carrageenansliver nanoparticlesion detection |
| spellingShingle | Yesheng Wang Xueyi Dong Li Zhao Yun Xue Xihui Zhao Qun Li Yanzhi Xia Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> Nanomaterials carrageenan sliver nanoparticles ion detection |
| title | Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> |
| title_full | Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> |
| title_fullStr | Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> |
| title_full_unstemmed | Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> |
| title_short | Facile and Green Fabrication of Carrageenan-Silver Nanoparticles for Colorimetric Determination of Cu<sup>2+</sup> and S<sup>2−</sup> |
| title_sort | facile and green fabrication of carrageenan silver nanoparticles for colorimetric determination of cu sup 2 sup and s sup 2 sup |
| topic | carrageenan sliver nanoparticles ion detection |
| url | https://www.mdpi.com/2079-4991/10/1/83 |
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