| Full text | |
| Author(s): |
Eryka T. D. Nobrega
[1]
;
Kelvin C. de Araújo
[2]
;
Ailton J. Moreira
[3]
;
Regiane C. de Oliveira
[4]
;
Gelson T. S. T. da Silva
[5]
;
Sirlon F. Blaskievicz
[6]
;
Leandro L. Soares
[7]
;
Sherlan G. Lemos
[8]
;
Lucia H. Mascaro
[9]
;
Ernesto C. Pereira
[10]
Total Authors: 10
|
| Affiliation: | [1] Universidade Federal de São Carlos. Departamento de Química - Brasil
[2] Universidade Federal de São Carlos. Departamento de Química - Brasil
[3] Universidade do Estado de São Paulo (UNESP). Instituto de Química - Brasil
[4] Universidade Federal de São Carlos. Departamento de Química - Brasil
[5] Universidade Federal de São Carlos. Departamento de Química - Brasil
[6] Universidade Federal de São Carlos. Departamento de Química - Brasil
[7] Universidade Federal de São Carlos. Departamento de Química - Brasil
[8] Universidade Federal da Paraíba. Departamento de Química - Brasil
[9] Universidade Federal de São Carlos. Departamento de Química - Brasil
[10] Universidade Federal de São Carlos. Departamento de Química - Brasil
Total Affiliations: 10
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Chemical Society; v. 35, n. 11 2024-05-10. |
| Abstract | |
Pure and cobalt-doped 3D ZnO were produced using the microwave (MW)-ultraviolet (UV)-visible (Vis) radiation-assisted hydrothermal method (MW-UV-Vis HM). Using experimental design, the effects of cobalt and UV-Vis radiation during the synthesis stage on the physicochemical properties of the materials were evaluated with different characterization techniques such as X-ray diffraction, scanning and transmission electron microscopy, diffuse reflectance, and electrochemistry. The presence of cobalt had a great influence on the reduction of charge donors in the ZnO matrix and had their photocatalytic properties improved when produced under the effect of UV-Vis radiation. The catalytic activity of the materials has been verified in important environmental remediation reactions, such as the electrochemical reduction of CO2 and the photocatalytic degradation of emerging pollutants. The results achieved in this study show competitive efficiency values for CO2 reduction (97%) and photocatalytic degradation (91%) of emerging pollutants in natural waters, illustrating the great versatility of the produced material in distinct applications. (AU) | |
| 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 |
| FAPESP's process: | 19/26860-2 - Synthesis and modification of CuO/Ga2O4 and Cu2O/Ga2O4 nanostructured films applied in H2 production from water photoelectrochemical reduction of water |
| Grantee: | Hugo Leandro Sousa dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 21/12394-0 - Sustainable synthetic methods employing catalysis, benign solvents, safer reagents, and bio-renewable feedstock |
| Grantee: | Arlene Gonçalves Corrêa |
| Support Opportunities: | Research Projects - Thematic Grants |
| FAPESP's process: | 22/05254-0 - Carbon dioxide electrochemical reduction to polymeric precursors |
| Grantee: | Eryka Thamyris Damascena Nobrega Cavalcanti |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 22/06219-3 - Developing and disseminating new technologies for environmental remediation of emerging contaminants |
| Grantee: | Ailton Jose Moreira |
| Support Opportunities: | Generation Project Research Grant |
| FAPESP's process: | 23/07525-3 - Developing and disseminating new technologies for environmental remediation of emerging contaminants |
| Grantee: | Ailton Jose Moreira |
| Support Opportunities: | Scholarships in Brazil - Generation Project |
| FAPESP's process: | 23/11554-9 - Synthesis and modification of carbon materials with transition metal oxides for application in CO2 reduction assays |
| Grantee: | Sirlon Francisco Blaskievicz |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| 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 |