| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 178786 | Electrochemistry Communications | 2015 | 4 Pages |
•The first direct photoelectrochemical (PEC) sensor to detect and reduce Cr(VI).•The first screen-printed TiO2 photoelectrode for Cr(VI) detection, which makes industrial production more cost-effective.•Au Surface modification from highly stable thiosulfate–sulfite mixed ligand electrolyte with no stabilizing additive.•Superior PEC sensitivity, selectivity, and stability developed under sun simulator illumination via amperometric technique.•Demonstration of actual detection of Cr(VI) in contaminated water samples from tap and river water.
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 0.004 μM, over a wide linear concentration range from 0.01 μM to 100 μM with a high sensitivity of 11.88 μA.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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