Volume 37, Issue 1 e6936
RESEARCH ARTICLE

Synergic effect of Type II ZnO/BiVO4 magnetic heterostructures for visible light-driven degradation of bisphenol A and methyl violet

Bhawna Kaushik

Bhawna Kaushik

Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India

Contribution: Conceptualization (lead), ​Investigation (lead), Methodology (lead), Software (lead), Validation (lead), Writing - original draft (lead)

Search for more papers by this author
Pooja Rana

Pooja Rana

Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India

Contribution: Formal analysis (equal), Software (equal), Writing - review & editing (equal)

Search for more papers by this author
Deepti Rawat

Deepti Rawat

Department of Chemistry, Miranda House College, University of Delhi, 110007, New Delhi, India

Contribution: Writing - review & editing (equal)

Search for more papers by this author
Kanika Solanki

Kanika Solanki

Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India

Contribution: Writing - review & editing (equal)

Search for more papers by this author
Pooja Rana

Pooja Rana

Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India

Contribution: Writing - review & editing (equal)

Search for more papers by this author
Shallu Sachdeva

Shallu Sachdeva

Department of Chemistry, Acharya Narendra Dev College, University of Delhi, 110019, New Delhi, India

Contribution: Writing - review & editing (equal)

Search for more papers by this author
Dhanaji R. Naikwadi

Dhanaji R. Naikwadi

Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364002 India

Contribution: Methodology (equal)

Search for more papers by this author
Ankush V. Biradar

Ankush V. Biradar

Inorganic Materials and Catalysis Division, CSIR-Central Salt and Marine Chemicals Research Institute, Bhavnagar, Gujarat, 364002 India

Contribution: Software (equal)

Search for more papers by this author
Rakesh K. Sharma

Corresponding Author

Rakesh K. Sharma

Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India

Correspondence

Rakesh K. Sharma, Green Chemistry Network Centre, Department of Chemistry, University of Delhi, 110007, New Delhi, India.

Email: [email protected]

Search for more papers by this author
First published: 21 October 2022

Funding information: Department of Science and Technology, Ministry of Science and Technology, India, Grant/Award Number: DST/TMD-EWO/WTI2K19/EWFH/2019/290(G)

Abstract

Construction of an effective heterojunction for unimpeded flow of photogenerated charges and their prolonged separation is imperative for environmental photocatalysis. Herein, we have designed an efficient magnetic ZnO/BiVO4 type-II heterostructure, which was employed for proficient degradation of persistent methyl violet dye with an efficiency of 97.6% in 90 min and a hazardous organic pollutant, namely, bisphenol A. UV-DRS and photoluminescence studies demonstrated that the fabricated nanocomposite exhibited effective light absorption and prolonged charge separation, thereby resulting in high photocatalytic efficacy under visible light irradiation. The efficacy of developed magnetic ZnO/BiVO4 was also compared with pristine BiVO4 and undoped magnetic ZnO, which indicated that the constructed heterostructure displayed approximately threefold and sixfold activity in contrast with bare BiVO4 and undoped magnetic ZnO nanoparticles, respectively. Radical trapping studies, ESR analysis along with GC-MS analysis were conducted to elucidate the mechanistic pathway during the photodegradation process. This work provides a rational technical approach and research ideas for photocatalytic degradation of harmful organic pollutants in an environment-friendly manner by employing energy-efficient LEDs. Besides, good recyclability of catalyst makes it a promising candidate for large-scale applications.

DATA AVAILABILITY STATEMENT

Data available on request from the authors.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.