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Highly selective and reversible optical, colorimetric, and electrochemical detection of mercury(ii) by amphiphilic ruthenium complexes anchored onto mesoporous oxide films
Journal article   Peer reviewed

Highly selective and reversible optical, colorimetric, and electrochemical detection of mercury(ii) by amphiphilic ruthenium complexes anchored onto mesoporous oxide films

Mohammad Nazeeruddin, Davide Di Censo, Robin Humphry-Baker and Michael Gratzel
Advanced functional materials, Vol.16(2), pp.189-194
19/01/2006
DOI: https://doi.org/10.1002/adfm.200500309

Abstract

A reversible, naked-eye sensor for mercury ions in aqueous and non-aqueous solutions is presented. The sensor changes from dark red to orange upon introduction of Hg(2+) ions. Removing the Hg(2+) ions from the sensor's surface by dipping it in a solution of KI causes the sensor to change back to dark red (see Figure).

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