Visible light assisted photocatalytic degradation of crystal violet dye and electrochemical detection of ascorbic acid using a BiVO4/FeVO4 heterojunction composite

Muhammad Munir Sajid; Sadaf Bashir Khan; Naveed Akthar Shad; Nasir Amin; Zhengjun Zhang

doi:10.1039/C8RA03890B

Visible light assisted photocatalytic degradation of crystal violet dye and electrochemical detection of ascorbic acid using a BiVO₄/FeVO₄ heterojunction composite†

Muhammad Munir Sajid,^ac Sadaf Bashir Khan,

^c Naveed Akthar Shad,^ab Nasir Amin

^a and Zhengjun Zhang

*^d

Author affiliations

* Corresponding authors

^a Department of Physics, Government College University, Allama Iqbal Road, Faisalabad, Pakistan

^b National Institute for Biotechnology and Genetic Engineering (NIBGE), P. O. Box. 577, Jhang Road, Faisalabad, Pakistan

^c The State Key Laboratory for New Ceramics & Fine Processing, School of Materials Science & Engineering, Tsinghua University, Beijing, China

^d Advanced Key Laboratory for New Ceramics, School of Materials Science & Engineering, Tsinghua University, Beijing, China
E-mail: zjzhang@tsinghua.edu.cn

Abstract

A BiVO₄/FeVO₄ nanocomposite photocatalyst was successfully synthesized via a hydrothermal method. The prepared heterojunction photocatalyst was characterized physically and chemically using XRD, SEM, EDX, XPS, BET, FT-IR, Raman, UV-vis DRS, EPR and photoluminescence techniques. BiVO₄/FeVO₄ was explored for its photocatalytic activity by the decomposition of crystal violet (CV) organic dye under visible radiation. This experiment showed that BiVO₄/FeVO₄ at a ratio of 2 : 1 completely degrades CV within 60 min. In addition, BiVO₄/FeVO₄ was investigated for the electrochemical detection of the useful analyte ascorbic acid using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry techniques. This work reveals the potential of the BiVO₄/FeVO₄ nanocomposite for applications in environmental disciplines as well as in biosensing.

This article is part of the themed collection: Editors' collection: Environmental chemistry: Pollution control

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Article information

DOI: https://doi.org/10.1039/C8RA03890B
Article type: Paper
Submitted: 07 mei 2018
Accepted: 12 jun 2018
First published: 27 jun 2018
This article is Open Access

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RSC Adv., 2018,8, 23489-23498

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Visible light assisted photocatalytic degradation of crystal violet dye and electrochemical detection of ascorbic acid using a BiVO₄/FeVO₄ heterojunction composite

M. M. Sajid, S. B. Khan, N. A. Shad, N. Amin and Z. Zhang, RSC Adv., 2018, 8, 23489 DOI: 10.1039/C8RA03890B

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