A simple and selective colorimetric mercury (II) sensing system based on chitosan stabilized gold nanoparticles and 2,6-pyridinedicarboxylic acid

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• 作者：Kun Tian ; Gene Siegel ; Ashutosh Tiwari ; ^{tiwari@eng.utah.edu}
• 关键词：Hg(II) sensing ; 2 ; 6-pyridinedicarboxylic acid ; Gold nanoparticle ; Colorimetric sensing
• 刊名：Materials Science and Engineering: C
• 出版年：2017
• 出版时间：1 February 2017
• 年：2017
• 卷：71
• 期：Complete
• 页码：195-199
• 全文大小：750 K
• 卷排序：71

文摘

A simple colorimetric method for detection of Hg2 + in water was proposed. Au nanoparticles and 2,6-pyridinedicarboxylic acid were used for sensing Hg2 +. Sensing mechanisms were demonstrated by TEM and UV–Visible measurements. It showed the solution color changes from red to blue upon addition of Hg2 +. The method selectively detected Hg2 + among seventeen different metal ions.