Abstract
A novel and simple photoelectrochemical (PEC) sensor to detect Cr(VI) based on screen-printed TiO2 modified with gold nanoparticles is presented. The proposed PEC sensor showed a very low detection limit (S/N=3) of 0.004μM, over a wide linear concentration range from 0.01μM to 100μM with a high sensitivity of 11.88μA.μM−1 Cr(VI). Results also indicated good anti-interference and superb recovery in natural media application for Cr(VI) sensing.
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