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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis, characterization and application of Nb2O5-doped zinc oxide for solar-based photodegradation of 4-chlorophenol

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Author(s):
de Moraes, Nicolas Perciani [1] ; Antonio Roupinha, Lais Helena [1] ; dos Santos, Gabriela Spirandelli [1] ; Canuto de Menezes, Beatriz Rossi [2] ; Martins de Sousa, Juliana Giancoli [1] ; Juca Dantas, Gustavo Viegas [1] ; Chaguri, Livia [1, 2] ; Rodrigues, Liana Alvares [1]
Total Authors: 8
Affiliation:
[1] Univ Sao Paulo, Escola Engn Lorena EEL, Estr Municipal Campinho S-N, BR-12602810 Lorena, SP - Brazil
[2] CTA, Inst Tecnol Aeronaut ITA, Praca Mal Eduardo Gomes 50, BR-12228900 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Materials Letters; v. 275, SEP 15 2020.
Web of Science Citations: 0
Abstract

This project studied the development of niobium oxide-doped zinc oxide photocatalysts, aiming to increase the photocatalytic efficiency of zinc oxide (ZnO). Characterization results prove the existence of zinc oxide and niobium oxide (Nb2O5) in the developed material. The addition of niobium oxide caused an increase in specific surface area and a decrease in the gap energy of the material. The results of 4-chlorophenol photodegradation show that the modified material displayed higher photocatalytic activity than pure ZnO. The superior photocatalytic activity is derived from the morphological and structural properties of the modified material, as well as from the heterojunctions formed between the semiconductors. The greater efficiency of charge transfer in the Nb2O5-doped material is demonstrated by the electrochemical impedance spectroscopy. (C) 2020 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 13/02762-5 - Development of technologies to prevent pollution: degradation and monitoring online of antibiotics in sewage
Grantee:Robson da Silva Rocha
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 18/16360-0 - Development of ZnO/Bi2O3/Carbon xerogel ternary composites as photocatalysts for the degradation of persistent organic pollutants
Grantee:Nicolas Perciani de Moraes
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 18/12035-7 - Mechanical and antimicrobial properties of Ag/PMMA nanocomposite
Grantee:Gilmar Patrocínio Thim
Support type: Regular Research Grants
FAPESP's process: 18/10492-1 - Photocatalytic evaluation of heterojunctions semiconductor/ZnO/carbon xerogel in the photodegradation of 4-chlorophenol in both fluidized bed and batch reactors
Grantee:Liana Alvares Rodrigues
Support type: Regular Research Grants
FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
Grantee:Marcos Roberto de Vasconcelos Lanza
Support type: Research Projects - Thematic Grants