Rapid, Simple and Selective Determination of 2,4,6-dinitrophenol Based on PtAg /Mesoporous SiO2 Nanocomposite Sensor with Electrochemical Detection

Ya Juan Feng; Yan Bing Chang; Guang Chen; Hong Yan Zhao; Shui Hua Zhang; Li Gang Bai

doi:10.4028/www.scientific.net/AMR.1118.87

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1118Rapid, Simple and Selective Determination of...

Rapid, Simple and Selective Determination of 2,4,6-dinitrophenol Based on PtAg /Mesoporous SiO₂ Nanocomposite Sensor with Electrochemical Detection

Abstract:

5-10nmPt-Ag nanoparticles were synthesized by Water thermal reduction, pluronic F127 and tetraethyl Orthosilicate (TEOS) have been used to synthesized mesoporous SiO₂ template. Pt-Ag nanoparticles have been absorbed onto the surface of mesoporous SiO₂. Finally, PtAg/mesoporous SiO₂ nanocomposites have been modified on the surface of glass carbon electrode to prepared electrochemcial sensor which used to detect 2,4,6-dinitrophenol. In order to optimize experimental conditions, the synergistic reaction, buffer solution has been studied. The result show, when the potential at-0.404V, 2,4,6-dinitrophenol could be determined with a detection limit of 0.163μmol/L and linearity between 0.49-1667μmol/L . This sensor has high sensitivity, good reproducibility and stability.

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Periodical:

Advanced Materials Research (Volume 1118)

Pages:

87-91

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1118.87

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Online since:

July 2015

Authors:

Ya Juan Feng*, Yan Bing Chang, Guang Chen, Hong Yan Zhao, Shui Hua Zhang, Li Gang Bai

Keywords:

6-dinitrophenol, Electrochemcial Sensor, Pt-Ag/Mesoporous SiO₂nanocomposites

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