| Texto completo | |
| Autor(es): |
Renda, C. G.
[1]
;
Goulart, L. A.
[2]
;
Fernandes, C. H. M.
[3]
;
Mascaro, L. H.
[3]
;
de Aquino, J. M.
[3]
;
Bertholdo, R.
[4]
Número total de Autores: 6
|
| Afiliação do(s) autor(es): | [1] Univ Fed Sao Carlos, Mat Engn Dept, Washington Luiz Highway Km 235, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Sao Carlos Inst Chem, Trabalhador Sao Carlense Ave 400, BR-13566590 Sao Carlos, SP - Brazil
[3] Univ Fed Sao Carlos, Chem Dept, Washington Luiz Highway Km 235, BR-13565905 Sao Carlos, SP - Brazil
[4] Univ Fed Alfenas, Inst Sci & Technol, Jose A Vilela Highway 11999, BR 267, Km 533, BR-37715400 Pocos De Caldas, MG - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING; v. 9, n. 1 FEB 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
A new photocatalyst based on onion-like carbon structures has been designed by heat-treating a modified phenolic resin (PR) modified with ferrocene (Fc). Its photocatalytic activity was investigated by degrading the methylene blue (MB) dye in the presence of UV-vis light. The catalyst was characterized by X-ray diffraction (XRD), Transmission Electron Microscopy (TEM) and Diffuse Reflectance Spectroscopy (DRS) moreover, the Brunauer-Emmett-Teller (BET) method was used to calculate the surface area. The carbon-iron catalyst (PR-Fc) presents high surface area and its structure is composed of amorphous carbon, graphite, gamma-iron, Fe3C (cementite), alpha-Fe2O3 (hematite), and gamma-Fe2O3 (maghemite). The results indicate 100% of dye degradation and removal of 97% of the organic load after just 60 min of reaction. The catalytic efficiency of PR-Fc for degradation was maintained in reuse experiments, with a decrease of only 23% after the third cycle. The PR-Fc photocatalyst is reusable and quite stable, thus it has enormous potential for treating organic pollutants. (AU) | |
| Processo FAPESP: | 18/16401-8 - Fotocatalisadores e fotoeletrodos para obtenção de combustíveis renováveis |
| Beneficiário: | Lucia Helena Mascaro Sales |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 17/11986-5 - Geração e Armazenamento de Novas Energias: trazendo desenvolvimento tecnológico para o país |
| Beneficiário: | Ana Flávia Nogueira |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa Aplicada |
| Processo FAPESP: | 14/50249-8 - Green chemistry: sustainable synthetic methods employing benign solvents, safer reagents, and bio-renewable feedstock |
| Beneficiário: | Arlene Gonçalves Corrêa |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa Centros de Pesquisa Aplicada |
| Processo FAPESP: | 13/07296-2 - CDMF - Centro de Desenvolvimento de Materiais Funcionais |
| Beneficiário: | Elson Longo da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |