Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 110, Issue -, Pages -Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2019.106614
Keywords
ZrO2 nanotubes; Photoreduction; Sensing; Metal ions
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Funding
- CNCSIS-UEFISCSU [PN-III-P4-ID PCE 2016-0316]
- European Regional Development Fund through Competitiveness Operational Program 2014-2020, Priority axis 1 [P_36_611, 107066]
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An integrated system for photo-accumulation (photoreduction) and sensing, based on a Zr/ZrO2 electrode, has been developed for the detection of trace heavy metals. The nanostructuring of the Zr/ZrO2 electrode was achieved by anodizing, which produced a nanotubular structure. Solutions containing Cd(II), Pb(II), Cu(II) and Hg(II) were used for analysis. Linear calibration plots were obtained in the concentration ranges from 8 x 10(-8) to 10(-5) M for Pb(II), 5 x 10(-8) to 2 x 10(-6) M for Cu(II) and 4 x 10(-8) to 10(-5) M for Hg(II).
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