Fabrication and characterization of a fluorescent sensor based on Rh 6G-functionlized silica nanoparticles for nitrite ion detection

	Fabrication and characterization of a fluorescent sensor based on Rh 6G-functionlized silica nanoparticles for nitrite ion detection
	Wang L. L.; Li B.; Zhang L. M.; Zhang L. G.; Zhao H. F.
	2012
发表期刊	Sensors and Actuators B-Chemical
ISSN	0925-4005
卷号	171 页码:946-953
摘要	In this paper, a rhodamine derivative of p-hydroxybenzaldlehyde rhodamine 6G hydrozone (denoted as Rh 6G-OH) is covalently grafted onto the surface of silica nanoparticles, giving a novel fluorescent chemosensing hybrid material (denoted as Rh 6G-SiO2) for the detection of nitrite ion. The FT-IR spectra confirm that Rh 6G-OH has been successfully grafted onto the surface of SiO2 nanoparticles, which effectively prevents the sensing probe leakage out of SiO2 supporting matrix. Rh 6G-SiO2 sensor shows a good linearity between the fluorescence intensity of Rh 6G-SiO2 and the concentration of nitrite ion with a detection limit down to 1.2 mu M, which results from a dramatic fluorescence reducing by the addition of nitrite ion upon the suspension of Rh 6G-SiO2. A high selectivity for nitrite ion in the presence of interference ions is demonstrated. The sensing mechanism of Rh 6G-SiO2 toward nitrite ion is discussed in detail and found to be a static quenching process. (C) 2012 Elsevier B.V. All rights reserved.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34340
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Wang L. L.,Li B.,Zhang L. M.,et al. Fabrication and characterization of a fluorescent sensor based on Rh 6G-functionlized silica nanoparticles for nitrite ion detection[J]. Sensors and Actuators B-Chemical,2012,171:946-953.
APA	Wang L. L.,Li B.,Zhang L. M.,Zhang L. G.,&Zhao H. F..(2012).Fabrication and characterization of a fluorescent sensor based on Rh 6G-functionlized silica nanoparticles for nitrite ion detection.Sensors and Actuators B-Chemical,171,946-953.
MLA	Wang L. L.,et al."Fabrication and characterization of a fluorescent sensor based on Rh 6G-functionlized silica nanoparticles for nitrite ion detection".Sensors and Actuators B-Chemical 171(2012):946-953.