Bi2O3/ZnO heterostructured semiconductor nanocomposites: synthesis, characterization and its visible light-induced degradation of methylene blue dye

• Published in: Zeitschrift für physikalische Chemie (Neue Folge) Vol. 238; no. 3; pp. 421 - 435
• Main Authors: Simeyon, Velanganni, Dinesh, Ayyar, Deivatamil, Deivanayagam, Thiruneelakandan, Raghavan, Meena, Boominathan Catherin, Mathavi, Manikandan, Padmapriya, Govindaswamy, Durka, Manikandan, Ayyar, Manikandan, Ansarie, AbuZar, Hashem, Mohamed, Fouad, Hassan
• Format: Journal Article
• Language: English
• Published: De Gruyter 25.03.2024
• Subjects: band gap energy; heterojunction; methylene blue dye; SILAR-CBD deposition; visible light; ZnO/Bi
• ISSN: 0942-9352; 2196-7156
• DOI: 10.1515/zpch-2023-0387

In this study, we describe the creation of linked semiconductor nanomaterials, which represents a significant development for photocatalytic applications. A Bi –ZnO hetrostructured thin film was created using the SILAR-CBD deposition technique. In comparison to pure ZnO and Bi , the produced heterostructured thin film showed greater photocatalytic (PCD) activity for the degradation of methylene blue (MB) dye under UV light. The formation of Bi (monoclinic lattice phase) and ZnO (hexagonal wurtzite phase) are the heterostructured nanomaterials that were generated, according to a powder XRD inspection. An image taken with HR-TEM demonstrates the mixing of nanoparticles and nanorod formations in the Bi /ZnO. The vectorial movement of electrons (e ) and holes (h ) between ZnO and Bi is responsible for the boosted photocatalytic efficiency, which is in turn, accountable for the enhanced photocatalytic activities.