期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 208, 期 -, 页码 485-490出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2014.11.061
关键词
Photoelectrochemistry; Sensor; Electrodeposition; Cuprous oxide; Copper ions
资金
- Natural Science Foundation of China [21305123]
- Natural Science Foundation of Jiangsu Province [BK2012247, BK20131218]
- Industry-University-Research Cooperative Innovation Foundation of Jiangsu Province [BY2014108-08, BY2014108-19]
- Foundation of International Cooperation of Jiangsu Province [BZ2010053]
- Foundation of Jiangsu Key Laboratory of Environmental Material and Environmental Engineering [K13064]
- Foundation of Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province [AE201162, AE201017]
A new and facile photoelectrochemical sensor using in situ electrodeposition of cuprous oxide for copper ions was first constructed. The proposed method is based on the enhanced photocurrent produced by the electrodeposited cubic Cu2O with the increasement of the concentration of copper ions. The prepared films of cubic Cu2O were successfully characterized by scanning electron microscopy, X-ray diffractometry, and ultraviolet-visible spectroscopy. The fabricated photoelectrochemical sensor showed good performances with a rapid response, facile preparation, excellent stability, a wide linear range (1 x 10(-11)-1 x 10(-3) mol L-1), and a low limit of detection (3.33 pmol L-1) at 3 signal-to-noise ratio. It has been successfully applied to the detection of copper ions in environment water sample, which is consistent with the results by inductively coupled plasma-mass spectroscopy. It opens up a novel insitu electrodeposited photoelectrochemical sensing method for metal ions. (C) 2014 Elsevier B.V. All rights reserved.
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