A fast-response, fluorescent 'turn-on' chemosensor for selective detection of Cr3+
文献类型：期刊论文
| 作者 | Fan, Chunhua1; Huang, Ximing1; Black, Cory A.2; Shen, Xingxing3; Qi, Junjie1; Yi, Yuanping3; Lu, Zhengliang1; Nie, Yong1; Sun, Guoxin1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2015 |
| 卷号 | 5期号:86页码:70302-70308 |
| 英文摘要 | A fast-response, highly selective and sensitive chemosensor, 3, for Cr3+ detection with turn-on fluorescence behavior in the physiological pH range was designed and synthesized. The chemosensor contained a combined push-pull system in which the fluorescent phenanthro[9,10-d] oxazole moiety acts as both an electron donor and a potential binding site. The electron deficient nitrile group served as an electron acceptor. A significant enhancement of fluorescence emission intensities was observed with increasing Cr3+ concentration upon excitation at 300 nm. The emission intensity reached its maximum on adding 8 equiv. of Cr3+ where the quantum yield of 3-Cr3+ was found to be 0.917, ca. 7-fold larger than chemosensor 3. The selectivity mechanism of 3 for Cr3+ was found to be based on the combined effects of the inhibition of ICT and CHEF. Remarkably the entire process was virtually complete in only 10 seconds, with a minimum detection limit for Cr3+ of 1.72 x 10(-8) M-1. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/27704]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China 2.Australian Wine Res Inst, Glen Osmond, SA 5064, Australia 3.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Organ Solids, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Chunhua,Huang, Ximing,Black, Cory A.,et al. A fast-response, fluorescent 'turn-on' chemosensor for selective detection of Cr3+[J]. RSC ADVANCES,2015,5(86):70302-70308. |
| APA | Fan, Chunhua.,Huang, Ximing.,Black, Cory A..,Shen, Xingxing.,Qi, Junjie.,...&Sun, Guoxin.(2015).A fast-response, fluorescent 'turn-on' chemosensor for selective detection of Cr3+.RSC ADVANCES,5(86),70302-70308. |
| MLA | Fan, Chunhua,et al."A fast-response, fluorescent 'turn-on' chemosensor for selective detection of Cr3+".RSC ADVANCES 5.86(2015):70302-70308. |
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来源：化学研究所
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