Synthesis and electrochemical performance of graphene-TiO 2 -carbon paste nanocomposites electrode in phenol detection

Muhammad Nurdin, La Agusu, Abdul Azis Marzuki Putra, Maulidiyah Maulidiyah, Zul Arham, Dwiprayogo Wibowo, Muhammad Zakir Muzakkar, Ali Umar Akrajas

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The addition of graphene (G) in to the TiO 2 anatase-carbon paste (GTC) composite electrode has been found to effectively enhance its electrochemical sensing sensitivity towards phenol. In this study, we found that the GTC electrode, which was prepared using a mixture of graphene obtained from Hummer method, TiO 2 from Degussa P25 and carbon paste, shows exceptionally high sensitivity towards the presence of phenol in electrolyte solution (H 2 SO 4 0.1 M). The presence of phenol is indicated by the appearance of oxidation peak (E pa ) at potential of 0.12 V. In the typical process, the new GTC electrode can effectively detect the phenol down to 3.6620 × 10 −5 μM. The electrode also exhibits excellent stability property with reproducibility relative standard deviation (%RSD R ) and predicted reproducibility standard deviation (%PRSD R ) recorded are as low as 1.33% and 2.83%, respectively. The response linearity can be obtained up to the phenol concentration of 10 −4 μM. Nevertheless, the GTC performance is a concentration dependent with the optimum electrode is the sample using graphene and TiO 2 as low as 0.015 and 0.3 g, respectively. The preparation and the characterization of the new electrode will be discussed in the detail.

Original languageEnglish
Pages (from-to)104-110
Number of pages7
JournalJournal of Physics and Chemistry of Solids
Volume131
DOIs
Publication statusPublished - 1 Aug 2019

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Ointments
Phenol
phenols
Graphene
Phenols
Nanocomposites
nanocomposites
graphene
Carbon
Electrodes
electrodes
carbon
synthesis
standard deviation
Adhesive pastes
sensitivity
anatase
Titanium dioxide
Electrolytes

Keywords

  • Anatase TiO
  • Cyclic voltammetry
  • Graphene
  • GTC
  • Nanocomposites
  • Phenol

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Synthesis and electrochemical performance of graphene-TiO 2 -carbon paste nanocomposites electrode in phenol detection . / Nurdin, Muhammad; Agusu, La; Putra, Abdul Azis Marzuki; Maulidiyah, Maulidiyah; Arham, Zul; Wibowo, Dwiprayogo; Muzakkar, Muhammad Zakir; Akrajas, Ali Umar.

In: Journal of Physics and Chemistry of Solids, Vol. 131, 01.08.2019, p. 104-110.

Research output: Contribution to journalArticle

Nurdin, Muhammad ; Agusu, La ; Putra, Abdul Azis Marzuki ; Maulidiyah, Maulidiyah ; Arham, Zul ; Wibowo, Dwiprayogo ; Muzakkar, Muhammad Zakir ; Akrajas, Ali Umar. / Synthesis and electrochemical performance of graphene-TiO 2 -carbon paste nanocomposites electrode in phenol detection In: Journal of Physics and Chemistry of Solids. 2019 ; Vol. 131. pp. 104-110.
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