| Full text | |
| Author(s): |
Leite, Allef
;
Marques e Silva, Ricardo
;
de Souza, Felipe Guimara
;
da Silva, Gelson Tiago dos Santos Tavares
;
Aquino, Jose Mario
;
Roveda Junior, Antonio Carlos
;
Cardoso, Daniel Rodrigues
;
Azevedo, Eduardo Bessa
;
de Souza, Fernanda Lourdes
;
Ribeiro, Caue
Total Authors: 10
|
| Document type: | Journal article |
| Source: | Applied Surface Science; v. 711, p. 10-pg., 2025-12-01. |
| Abstract | |
This work reports a g-C3N4:Nb2O5 heterostructure for effective photocatalytic degradation of Bisphenol A (BPA) under visible light. The heterojunction composites were prepared using thermal polymerization and hydrothermal methods, demonstrating the effective separation of photogenerated charge carriers and stimulating the generation of reactive oxygen species. Characterization demonstrated the successful formation of a heterostructure, with Nb2O5 nanoparticles uniformly dispersed on g-C3N4 sheets. Photocatalytic tests revealed a significant enhancement in BPA degradation, achieving 99% removal under optimal conditions (pH 3, 250 mg L-1 catalyst, and visible light). The study also identified superoxide radicals and photogenerated holes as the dominant reactive species. The heterostructure exhibited notable photocatalytic and structural stability across multiple degradation cycles, suggesting its potential for eco-friendly water treatment applications. (AU) | |
| FAPESP's process: | 13/07296-2 - CDMF - Center for the Development of Functional Materials |
| Grantee: | Elson Longo da Silva |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 24/20216-2 - New directions for the Photocatalytic Reduction of CO2: Biphasic Liquid-scCO2 system |
| Grantee: | Allef Leite dos Santos |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |
| FAPESP's process: | 24/02379-1 - New hybrid gas-cleaning technologies based on electroscrubber |
| Grantee: | Fernanda de Lourdes Souza |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 20/09628-6 - Development of heterostructured semiconducting nanoparticles for methane conversion by photocatalytic process |
| Grantee: | Ricardo Marques e Silva |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| 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: | 23/08424-6 - Development of photocatalytic routes for the reduction of CO2 in supercritical media. |
| Grantee: | Allef Leite dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country |
| Grantee: | Ana Flávia Nogueira |
| Support Opportunities: | Research Grants - Applied Research Centers Program |
| FAPESP's process: | 22/10255-5 - Architectures based on metal phosphides and nitrides for photo(electro)chemical conversion of CO2 into C2+ compounds |
| Grantee: | Gelson Tiago dos Santos Tavares da Silva |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |