Development of robust multifunctional CrNiCo-P/GCN catalyst for oxygen evolution reaction, electrochemical sensing, and photodegradation of roxarsone

Shaktivel Manavalan; Pitchaimani Veerakumar; Shen-Ming Chen; Naveen Karuppusamy

doi:10.1039/d2nr03755f

Development of robust multifunctional CrNiCo-P/GCN catalyst for oxygen evolution reaction, electrochemical sensing, and photodegradation of roxarsone

Nanoscale. 2022 Nov 10;14(43):16233-16248. doi: 10.1039/d2nr03755f.

Authors

Shaktivel Manavalan¹, Pitchaimani Veerakumar^{2

3}, Shen-Ming Chen¹, Naveen Karuppusamy¹

Affiliations

¹ Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan. smchen78@ms15.hinet.net.
² Institute of Atomic and Molecular Sciences, Academia Sinica, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan.
³ Department of Chemistry, National Taiwan University, No. 1, Roosevelt Road, Section 4, Taipei 10617, Taiwan. spveerakumar@gmail.com.

PMID: 36282107
DOI: 10.1039/d2nr03755f

Abstract

In this study, we designed a CrNiCo-P/GCN composite for use as a high-performance multifunctional catalyst for the oxygen evolution reaction (OER), electrochemical determination, and photodegradation of roxarsone (ROX). CrNiCo-P/GCN demonstrates favorable charge resistance and electrical conductance due to its intrinsic properties. It exhibits an admirable OER overpotential of 290 mV with a lower Tafel plot value of 125 mV dec^-1 in alkaline media and compared with the control samples. Furthermore, this composite also demonstrates high performance in electrochemical sensing of ROX over a wide concentration range of 1-413 μM with a lower limit of detection (LOD) of 31 nM in phosphate buffer. Moreover, this composite is a promising electrocatalyst for ROX sensors in practical analysis and also possesses excellent photodegradation of ROX under visible light irradiation.