Chloride accelerated Fenton chemistry for the ultrasensitive and selective colorimetric detection of copper
Zhi Shan,ab Mingsheng Lu,ac Li Wang,ad Bruce MacDonald,a Judy MacInnis,e Martin Mkandawire,a Xu Zhang*a and Ken D. Oakes,af
Verschuren Centre for Sustainability in Energy & the Environment, Cape Breton University, Sydney, Canada
Chem. Commun., 2016,52, 2087-2090
DOI: 10.1039/C5CC07446K
url: http://pubs.rsc.org/en/content/articlelanding/2016/cc/c5cc07446k#!divAbstract
A highly selective, ultrasensitive (visual and instrumental detection limits of 40 nM and 0.1 nM, respectively), environmentally-friendly, simple and rapid colorimetric sensor was developed for the detection of copper(II) in water. This sensor is based on a novel signal-amplification mechanism involving reactive halide species (RHSs) including chlorides or bromides, which accelerate copper Fenton reactions oxidizing the chromogenic substrate to develop colour. The results of this study expand our understanding of copper-based Fenton chemistry.
Verschuren Centre for Sustainability in Energy & the Environment, Cape Breton University, Sydney, Canada
Chem. Commun., 2016,52, 2087-2090
DOI: 10.1039/C5CC07446K
url: http://pubs.rsc.org/en/content/articlelanding/2016/cc/c5cc07446k#!divAbstract
A highly selective, ultrasensitive (visual and instrumental detection limits of 40 nM and 0.1 nM, respectively), environmentally-friendly, simple and rapid colorimetric sensor was developed for the detection of copper(II) in water. This sensor is based on a novel signal-amplification mechanism involving reactive halide species (RHSs) including chlorides or bromides, which accelerate copper Fenton reactions oxidizing the chromogenic substrate to develop colour. The results of this study expand our understanding of copper-based Fenton chemistry.
They describe the new detection technical of Cu(II) ion, using dye and hydrogen peroxide.
Oxidation of the dye with reactive radicals generated by fenton reaction catalyzed by Cu make the color of solution blue.
In this article, they mentioned about facilitation of the reaction between Cu and H2O2 by chloride anion.
This could be important in the Abe-san's experiment.
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