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