A simple visual and highly selective colorimetric detection of Hg2+ based on gold nanoparticles modified by 8-hydroxyquinolines and oxalates

被引：55

作者：

Gao, Yuexia ^{[1
,2
,3
]}

Li, Xing ^{[1
]}

Li, Yonglong ^{[2
,3
]}

Li, Tianhua ^{[1
,2
,3
]}

Zhao, Yayun ^{[1
]}

Wu, Aiguo ^{[2
,3
]}

机构：

[1] Ningbo Univ, Fac Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China

[2] Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China

[3] Ningbo Inst Mat Technol & Engn, Div Modified Mat & Nanodevices, Ningbo 315201, Zhejiang, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2014年 / 50卷 / 49期

关键词：

SURFACE-PLASMON RESONANCE; ATOMIC-ABSORPTION; MERCURY(II) ION; SENSOR; CHEMOSENSORS; AGGREGATION; TEMPERATURE; EXTRACTION; BENZOATES; EXPOSURE;

D O I：

10.1039/c4cc00069b

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Gold nanoparticles (AuNPs) modified by 8-hydroxy-quinoline (8-HQ) and stabilized by polyvinylpyrrolidone (PVP) were used for highly selective and sensitive colorimetric detection of Hg2+ based on the quick aggregation of AuNPs leading to a color change from wine red to gray. The limit of Hg2+ detection in real environmental water samples is 4.0 x 10(-7) M by the naked eyes and 1.0 x 10(-8) M by UV-vis spectroscopy.

引用

收藏

页码：6447 / 6450

页数：4

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