期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 236, 期 -, 页码 311-317出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2016.06.018
关键词
Cerium dioxide; Titanium dioxide; Selenium dioxide; Reduced graphene oxide; Nitrite ion
资金
- Ministry of Education and Science of the Republic of Serbia [OI 172030]
- JoinEU-SEE-Penta Erasmus Mundus scholarship
- Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH)
- Centre for International Cooperation Mobility (ICM)
In this work, a comparative study between three different novel synthesized materials, cerium, titanium and selenium dioxide doped reduced graphene oxide, was done toward detection of nitrite in tap water. It was found that best response and analytical performance were achieved with acerium dioxide reduced graphene oxide modified glassy carbon electrode. The materials were synthesized and characterized with transmission electron microscopy (TEM), electrochemical impedance spectroscopy and UV-vis spectroscopy. The prepared electrode has a wide linear range from 0.7 to 385 mu M witha detection of 0.18 mu M using amperometric detection. Various parameters were optimized and the sensor was successfully applied for the nitrite ion quantification in tap water samples. Inclusion of different dopants in the graphene structure for novel materials to modify solid electrodes was found to enhance the catalytic effect toward nitrite detection. (C) 2016 Elsevier B.V. All Rights reserved.
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