One-pot synthesis of AuNPs/RGO/WO3 nanocomposite for simultaneously sensing hydroquinone and catechol

Meng Shian Tsai, Chia Jung Lu, Pi Guey Su*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)

摘要

A nanocomposite of Au nanoparticles (AuNPs), reduced graphene oxide (RGO) and tungsten oxide (WO3) (AuNPs/RGO/WO3) was fabricated by the one-pot polyol method followed by metal organic decomposition (MOD) method. The novel AuNPs/RGO/WO3 nanocomposite was used to modify a glass carbon electrode (GCE) for the sensitive and simultaneous sensing of hydroquinone (HQ) and catechol (CC). The AuNPs/RGO/WO3 nanocomposite film was characterized by scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), Raman spectroscopy, X-ray diffractometry (XRD) and electrochemical impedance spectroscopy (EIS). The effects of the added RGO and AuNPs on the electrochemical properties of the AuNPs/RGO/WO3/GCE electrode for sensing HQ and CC were studied using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Comparative electrochemical sensing results revealed that the sensor that was made of the AuNPs/RGO/WO3 nanocomposite film exhibited much higher selectivity and sensitivity than those of pure WO3 and RGO/WO3 films for the simultaneously sensing of HQ and CC. This sensor exhibited high sensitivity, good linearity, a low detection limit and high selectivity for the simultaneously sensing of HQ and CC.

原文英語
頁(從 - 到)293-298
頁數6
期刊Materials Chemistry and Physics
215
DOIs
出版狀態已發佈 - 2018 八月 15

ASJC Scopus subject areas

  • 材料科學(全部)
  • 凝聚態物理學

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