Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Novel onion-like carbon structures modified with iron oxide as photocatalysts for the degradation of persistent pollutants

Full text
Author(s):
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]
Total Authors: 6
Affiliation:
[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
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING; v. 9, n. 1 FEB 2021.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 18/16401-8 - Photocatalysts and photoelectrodes for obtaining renewable fuels
Grantee:Lucia Helena Mascaro Sales
Support Opportunities: Regular Research Grants
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 - Research Centers in Engineering Program
FAPESP's process: 14/50249-8 - Green chemistry: sustainable synthetic methods employing benign solvents, safer reagents, and bio-renewable feedstock
Grantee:Arlene Gonçalves Corrêa
Support Opportunities: Research Grants - Research Centers in Engineering Program
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