Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters
Water-soluble fluorescent Ag nanoclusters (NCs) were synthesized at room temperature with sodium dodecyl sulfonate (SDS) as a protective agent. The effects of synthetic conditions on the fluorescence properties of Ag NCs were investigated. The results show that the fluorescence intensity of Ag NCs s...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2013/261648 |
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| author | Chengzhi Zheng Huiping Wang Lingzhi Liu Manjun Zhang Jiangong Liang Heyou Han |
| author_facet | Chengzhi Zheng Huiping Wang Lingzhi Liu Manjun Zhang Jiangong Liang Heyou Han |
| author_sort | Chengzhi Zheng |
| collection | DOAJ |
| description | Water-soluble fluorescent Ag nanoclusters (NCs) were synthesized at room temperature with sodium dodecyl sulfonate (SDS) as a protective agent. The effects of synthetic conditions on the fluorescence properties of Ag NCs were investigated. The results show that the fluorescence intensity of Ag NCs strongly depends on the synthetic conditions, such as the molar ratio of AgNO3 versus SDS and sodium borohydride (NaBH4), the reaction time, and the pH value of the reaction solution. Under the optimum conditions, the as-prepared Ag NCs exist in face-centered-cubic phase with an average size of 2 nm. Fluorescence spectra of Ag NCs show emission peaks at 365 nm for different excitation wavelength. Resonant absorptions are observed at 203 nm and 277 nm in the absorption spectrum, which can be used to establish the electronic levels in the Ag NCs system. |
| format | Article |
| id | doaj-art-73f2fb32806b486d9cfd6768e4fa5b13 |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-73f2fb32806b486d9cfd6768e4fa5b132025-02-03T01:32:10ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732013-01-01201310.1155/2013/261648261648Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag NanoclustersChengzhi Zheng0Huiping Wang1Lingzhi Liu2Manjun Zhang3Jiangong Liang4Heyou Han5State Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaState Key Laboratory of Agricultural Microbiology, College of Science, Institute of Chemical Biology, Huazhong Agricultural University, Wuhan 430070, ChinaWater-soluble fluorescent Ag nanoclusters (NCs) were synthesized at room temperature with sodium dodecyl sulfonate (SDS) as a protective agent. The effects of synthetic conditions on the fluorescence properties of Ag NCs were investigated. The results show that the fluorescence intensity of Ag NCs strongly depends on the synthetic conditions, such as the molar ratio of AgNO3 versus SDS and sodium borohydride (NaBH4), the reaction time, and the pH value of the reaction solution. Under the optimum conditions, the as-prepared Ag NCs exist in face-centered-cubic phase with an average size of 2 nm. Fluorescence spectra of Ag NCs show emission peaks at 365 nm for different excitation wavelength. Resonant absorptions are observed at 203 nm and 277 nm in the absorption spectrum, which can be used to establish the electronic levels in the Ag NCs system.http://dx.doi.org/10.1155/2013/261648 |
| spellingShingle | Chengzhi Zheng Huiping Wang Lingzhi Liu Manjun Zhang Jiangong Liang Heyou Han Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters Journal of Analytical Methods in Chemistry |
| title | Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters |
| title_full | Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters |
| title_fullStr | Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters |
| title_full_unstemmed | Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters |
| title_short | Synthesis and Spectroscopic Characterization of Water-Soluble Fluorescent Ag Nanoclusters |
| title_sort | synthesis and spectroscopic characterization of water soluble fluorescent ag nanoclusters |
| url | http://dx.doi.org/10.1155/2013/261648 |
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