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A novel screen-printed TiO2 photoelectrochemical sensor for direct determination and reduction of hexavalent chromium

Siavash Moakhar, R ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1016/j.elecom.2015.10.011
  3. Publisher: Elsevier Inc , 2015
  4. Abstract:
  5. 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
  6. Keywords:
  7. Gold nanoparticles ; Photoelectrochemical sensor ; Screen print ; Titania nanoparticles ; Chromium ; Chromium compounds ; Electrochemistry ; Fiber optic sensors ; Gold ; Metal nanoparticles ; Nanoparticles ; Screen printing ; Titanium dioxide ; Direct determination ; Hexavalent chromium ; Linear concentration ; Low detection limit ; Photoelectrochemical sensors ; Photoelectrochemicals ; Titania nano-particles ; Photoelectrochemical cells
  8. Source: Electrochemistry Communications ; Volume 61 , 2015 , Pages 110-113 ; 13882481 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1388248115002921