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A Pt Nanoparticle Electrode for Nitrite Determination in Solution
Ning, Yun-Fang1; Guo, Jin-Song1,2; Nie, Bei2; Tang, Ying1,3; Zeng, Ni1; Fang, Fang1; Shen, Yu2; Yang, Ji-Xiang2; Chen, You-Peng1,2
2014
摘要In this study, a Pt nanoparticle electrode which had advantages of high selectivity, accuracy, and anti-interference capacity was successfully fabricated for quantitative measurement and analysis of nitrite concentration under neutral conditions with various interference ions. Current-time curve was used for the electrodeposition of Pt nanoparticles on the surface of the pretreated Pt disk electrode, and the deposition time was 100 seconds. The prepared nano-Pt electrode had an electrochemical catalytic reductive activity for nitrite. Nitrite reductive peak current was linear correlation with nitrite concentrations in solutions. The life time of the modified electrode was at least 150 days at room temperature (at least 1000 determinations). The present method is simple, does not require any pre-treatment procedure, and does carry very good repeatability and reproducibility. Moreover, the proposed electrochemical method was also validated by spectrophotometry in artificial and real wastewater samples. (C) 2014 The Electrochemical Society.
DOI10.1149/2.058404jes
发表期刊JOURNAL OF THE ELECTROCHEMICAL SOCIETY
ISSN0013-4651
卷号161期号:4页码:H220-H224
通讯作者Ning, YF (reprint author), Chongqing Univ, Coll Urban Construct & Environm Engn, Chongqing 400045, Peoples R China.
收录类别SCI
WOS记录号WOS:000333549500093
语种英语