Synthesis of perovskite-type potassium niobate using deep eutectic solvents: A promising electrode material for detection of bisphenol A

Thangavelu Sakthi Priya, Tse Wei Chen, Shen Ming Chen*, Thangavelu Kokulnathan, Bih Show Lou*, Wedad A. Al-onazi, Amal M. Al-Mohaimeed, Mohamed S. Elshikh, Jaysan Yu

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

15 Scopus citations

Abstract

This study demonstrates a hydrothermal method to prepare perovskite-type potassium niobate (KNbO3) through deep eutectic solvent (DES), which is further used as an electrode material for the determination of bisphenol A (BPA). The as-synthesized KNbO3 was systematically characterized by different microscopic and spectroscopic techniques. The KNbO3-modified electrode demonstrates excellent electrocatalytic activity for BPA compared to the pristine electrode. The enhanced performance of the proposed sensor is attributed to the numerous active sites, large electrochemical surface area, high electrical conductivity, and rapid electron transfer. The fabricated sensor shows a wide detection range (0.01–84.3 μM), a low limit of detection (0.003 μM), a high sensitivity (0.51 μA μM−1 cm−2), and good anti-interference abilities towards the BPA detection by linear sweep voltammetry method. Besides, it was successfully applied to determining BPA in food samples, demonstrating good practicability. This design paves a new way to fabricate efficient electrode material for various electrochemical applications using a DES medium.

Original languageEnglish
Article number137948
Pages (from-to)137948
JournalChemosphere
Volume318
DOIs
StatePublished - 03 2023

Bibliographical note

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Keywords

  • Alkali niobates
  • Deep eutectic solvent
  • Electrode material
  • Food samples
  • Electrodes
  • Deep Eutectic Solvents
  • Electrochemical Techniques/methods

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