Development of rutin-rGO/TiO2 nanocomposite for electrochemical detection and photocatalytic removal of 2,4-DCP

Subramanian Ramanathan, Annadurai Thamilselvan, N. Radhika, D. Padmanabhan, Arulappan Durairaj, Asir Obadiah, I. Sharmila Lydia, Samuel Vasanthkumar

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We report in this the development of nanocomposite rutin-reduced graphene oxide/titanium oxide (R-rGO/TiO2) through a chemical precipitation method to enhance the electrochemical detection and photocatalytic efficiency of the 2,4-dichlorophenol (DCP). The structural and morphological characterization of the as-fabricated nanocomposites were carried out by X-ray diffraction, Fourier transforms infrared spectroscopy (FT-IR), scanning electron microscopy, transmission electron microscopy, etc. The R-rGO/TiO2 electrochemical sensor was developed for 2,4-dichlorophenol (DCP) and rutin oxidation based on composite altered glassy carbon electrode (GCE). Moreover, R-rGO/TiO2/GCE composite exhibited accomplished electrocatalytic activity towards DCP in the linear range 5–150 μM and a low detection limit of 0.02 μM (S/N = 3). The TiO2 nanomaterial was well embellished on the surface of the graphene sheets, which helps in electron transfer from TiO2 to graphene and hence interruption by recombination method, to the foremost R-rGO/TiO2/GCE enhance the photocatalytic activity. The electrochemically sensed pesticide intermediate 2,4-DCP was the photo-catalytically degraded by the same R-rGO/TiO2 nanocomposite for water remediation. The nanocomposite exhibits higher degradation efficiency on 2,4-DCP when compared with the individual materials. After the degradation, the degraded water was studied for the animal survival study using Artemia salina as the model eco-toxicology model. Graphic Abstract: [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)2457-2472
Number of pages16
JournalJournal of the Iranian Chemical Society
Issue number9
StatePublished - Sep 2021
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2021, Iranian Chemical Society.


The authors thank the Management and Administration of Karunya University for their support and help. The authors are grateful to Department of Science and Technology, Govt. of India for their financial support.

FundersFunder number
Department of Science and Technology, Ministry of Science and Technology, India


    • 2,4-dichlorophenol
    • Artemia salina
    • Cyclic voltammetry
    • Nanocomposite
    • Photocatalytic
    • Reduced graphene oxide
    • Rutin
    • Titanium oxide


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