Facile preparation of ZnO:g-C3N4 heterostructures and their application in amiloride photodegradation and CO2 photoreduction

Author(s)

Martins, Nailma de Jesus ^{[1, 2]} ; Gomes, Isabel C. H. ^[2] ; da Silva, Gelson T. S. T. ^[3] ; Torres, Juliana A. ^[3] ; Avansi, Waldir ^[4] ; Ribeiro, Caue ^[3] ; Malagutti, Andrea R. ^[5] ; Mourao, Henrique A. J. L. ^{[1, 2]}

Affiliation

^[1] Fed Univ Jequitinhonha & Mucuri Valleys UFVJM, Chem Postgrad Program PPGQ, MGT 367 Highway Km 583, BR-39100000 Diamantina, MG - Brazil

^[2] Fed Univ Jequitinhonha & Mucuri Valleys UFVJM, Inst Sci & Technol ICT, MGT 367 Highway Km 583, BR-39100000 Diamantina, MG - Brazil

^[3] Embrapa Instrumentat, Nanotechnol Natl Lab Agr LNNA, BR-13560970 Sao Carlos, SP - Brazil

^[4] Fed Univ Sao Carlos UFSCar, Dept Phys, BR-13565905 Sao Carlos, SP - Brazil

^[5] Fed Univ Jequitinhonha & Mucuri Valleys UFVJM, Dept Pharm DEFAR, MGT 367 Highway Km 583, BR-13910000 Diamantina, MG - Brazil

• Document type: Journal article
• Source: Journal of Alloys and Compounds; v. 856, MAR 5 2021.
• Web of Science Citations: 0

Abstract

Semiconductor heterojunctions are interesting strategies for the development of efficient photocatalysts. In this paper we report the synthesis of ZnO:g-C3N4 heterostructures with different percentages of g-C3N4 (15%, 50% and 85%) using an easy and new method: precipitation of ZnO by alkaline solution at room temperature on g-C3N4 surface. The nucleation of ZnO nanoparticles had effective interaction on the g-C3N4 surface, showing good crystallinity and uniformity, which improved the heterostructure stability and the separation of photogenerated charge carriers, consequently increasing the photo-catalytic efficiency for both the degradation of the amiloride (AML) drug and the conversion of CO2 into products such as CO, CH4 and C2H4. (C) 2020 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products
• Grantee: José Maria Correa Bueno
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 13/17639-4 - Obtainment of nanostructured semiconductors: correlation of the photocatalytic properties to their structural characteristic
• Grantee: Waldir Avansi Junior
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/21515-7 - Development of magnesium oxide with zinc and titanium heterostructure for application in artificial photosynthesis processes
• Grantee: Juliana Arriel Torres
• Support Opportunities: Scholarships in Brazil - Post-Doctoral