Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Colorimetric sensing of copper(II) based on catalytic etching of gold nanorods | |
Chen, Zhaopeng1,2 ; Liu, Ruili3; Wang, Shasha1,2,4; Qu, Chengli1,2; Chen, Lingxin1,2; Wang, Zhuo3; Chen, ZP (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China. zhpchen@yic.ac.cn
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| 发表期刊 | RSC ADVANCES
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| ISSN | 2046-2069 |
| 2013 | |
| 卷号 | 3期号:32页码:13318-13323 |
| 关键词 | Aqueous-solution Spectrometry Samples Nanoparticles Fluorescence Recovery Water Ions |
| 产权排序 | [Chen, Zhaopeng; Wang, Shasha; Qu, Chengli; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China; [Chen, Zhaopeng; Wang, Shasha; Qu, Chengli; Chen, Lingxin] YICCAS, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China; [Liu, Ruili; Wang, Zhuo] Yantai Univ, Sch Environm & Mat Engn, Yantai 264003, Shandong, Peoples R China; [Wang, Shasha] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 英文摘要 | In this work, a sensitive colorimetric method for determination of copper(II) in aqueous solution was developed based on catalytic etching of gold nanorods (GNRs). CTAB stabilized GNRs were etched slowly by dissolved oxygen along the axial direction in NH3-NH4Cl (0.8/0.1 M) solution. The etching was accelerated by the addition of Cu2+ with very low concentration, leading to a dramatic decrease of the GNRs in length but little in diameter. The etching caused the longitudinal surface plasmon resonance (LSPR) absorption to decrease sharply and shift to the short-wave direction, accompanied by a color change from blue to slight red. Potential effects of relevant experimental conditions, including concentrations of NH3 and S2O32-, and incubation temperature and time were evaluated for optimization of the method. The proposed method is sensitive (LOD = 2.7 nM) and selective (by at least 100-fold over other metal ions except for Mn2+ and Pb2+) with a linear range from 7 to 50 nM. Furthermore, the cost-effective method allows rapid and simple determination of the content of copper in shellfish samples.; In this work, a sensitive colorimetric method for determination of copper(II) in aqueous solution was developed based on catalytic etching of gold nanorods (GNRs). CTAB stabilized GNRs were etched slowly by dissolved oxygen along the axial direction in NH3-NH4Cl (0.8/0.1 M) solution. The etching was accelerated by the addition of Cu2+ with very low concentration, leading to a dramatic decrease of the GNRs in length but little in diameter. The etching caused the longitudinal surface plasmon resonance (LSPR) absorption to decrease sharply and shift to the short-wave direction, accompanied by a color change from blue to slight red. Potential effects of relevant experimental conditions, including concentrations of NH3 and S2O32-, and incubation temperature and time were evaluated for optimization of the method. The proposed method is sensitive (LOD = 2.7 nM) and selective (by at least 100-fold over other metal ions except for Mn2+ and Pb2+) with a linear range from 7 to 50 nM. Furthermore, the cost-effective method allows rapid and simple determination of the content of copper in shellfish samples. |
| 文章类型 | Article |
| 资助机构 | Department of Science and Technology of Shandong Province [BS2009DX006]; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry; National Natural Science Foundation of China [21275158]; Innovation Projects of the Chinese Academy of Sciences [KZCX2-YW-JS208, KZCX2-EW-206]; 100 Talents Program of the Chinese Academy of Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | AQUEOUS-SOLUTION ; SPECTROMETRY ; SAMPLES ; NANOPARTICLES ; FLUORESCENCE ; RECOVERY ; WATER ; IONS |
| 研究领域[WOS] | Chemistry |
| WOS记录号 | WOS:000322068400037 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/6993 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Chen, ZP (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China. zhpchen@yic.ac.cn |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Processes & Ecol Re, Yantai 264003, Shandong, Peoples R China 2.YICCAS, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai 264003, Shandong, Peoples R China 3.Yantai Univ, Sch Environm & Mat Engn, Yantai 264003, Shandong, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Zhaopeng,Liu, Ruili,Wang, Shasha,et al. Colorimetric sensing of copper(II) based on catalytic etching of gold nanorods[J]. RSC ADVANCES,2013,3(32):13318-13323. |
| APA | Chen, Zhaopeng.,Liu, Ruili.,Wang, Shasha.,Qu, Chengli.,Chen, Lingxin.,...&Chen, ZP .(2013).Colorimetric sensing of copper(II) based on catalytic etching of gold nanorods.RSC ADVANCES,3(32),13318-13323. |
| MLA | Chen, Zhaopeng,et al."Colorimetric sensing of copper(II) based on catalytic etching of gold nanorods".RSC ADVANCES 3.32(2013):13318-13323. |
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