Back to Search Start Over

Co3O4-Bi2O3 heterojunction: An effective photocatalyst for photodegradation of rhodamine B dye

Authors :
Muhammad Saeed
Norah Alwadai
Lamia Ben Farhat
Afifa Baig
Walid Nabgan
Munawar Iqbal
Source :
Arabian Journal of Chemistry, Vol 15, Iss 4, Pp 103732- (2022)
Publication Year :
2022
Publisher :
Elsevier, 2022.

Abstract

Recently, the research on the remediation of aqueous organic pollutants over visible-light-active photocatalysts has got much attention. Therefore, this study reports the fabrication of visible-light-active Co3O4-Bi2O3 heterojunction photocatalyst for the photodegradation of rhodamine B dye. The Co3O4-Bi2O3 heterojunction was synthesized by the coprecipitation method and characterized by XRD, EDS, SEM, TEM, TGA, and FTIR. The as-prepared Co3O4-Bi2O3 heterojunction was utilized as a photocatalyst for the abatement of rhodamine B dye. It was observed that Co3O4-Bi2O3 showed the best catalytic performance with ∼92% degradation of rhodamine B dye than Co3O4 and Bi2O3 with 14 and 34% removal of rhodamine B dye, respectively. The rate constant for Co3O4-Bi2O3 catalyzed photodegradation of rhodamine B was 6 times and 3 times higher than the rate constant for Co3O4 catalyzed and Bi2O3 catalyzed photodegradation of rhodamine B, respectively. The as-prepared Co3O4-Bi2O3 exhibited the highest catalytic performance at pH 8.

Details

Language :
English
ISSN :
18785352
Volume :
15
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Arabian Journal of Chemistry
Publication Type :
Academic Journal
Accession number :
edsdoj.4f633200ecab4e0386264127f2845475
Document Type :
article
Full Text :
https://doi.org/10.1016/j.arabjc.2022.103732