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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.)

ZnO:ZnWO4 heterostructure with enhanced photocatalytic activity for pollutant degradation in liquid and gas phases

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Author(s):
Carvalho, Kele T. G. [1] ; Lopes, Osmando F. [2] ; Ferreira, Debora C. [3, 1] ; Ribeiro, Caue [4, 1]
Total Authors: 4
Affiliation:
[1] Embrapa Instrumentacao, Rua 15 Novembro, 1452 CP 741, BR-13561206 Sao Carlos, SP - Brazil
[2] Univ Fed Uberlandia, Inst Quim, Av Joao Naves Avila 2121, BR-38400902 Uberlandia, MG - Brazil
[3] Univ Sao Paulo, Inst Quim Sao Carlos, Av Trabalhador Sao Carlense 400, BR-13560970 Sao Carlos, SP - Brazil
[4] Forschungszentrum Julich, Inst Energy & Climate Res Electrochem Proc Engn I, D-52425 Julich - Germany
Total Affiliations: 4
Document type: Journal article
Source: Journal of Alloys and Compounds; v. 797, p. 1299-1309, AUG 15 2019.
Web of Science Citations: 0
Abstract

Here we report, for the first time, a versatile ZnO:ZnWO4 heterostructure active for photocatalytic degradation of pollutants in liquid and gaseous media, prepared using a simple hydrothermal method driven by the differences in chemical solubility of the components. This heterostructured material was effective in the oxidation of methylene blue dye, caffeine, and amiloride in aqueous solution, and ethylene gas. High photocatalytic performance was attributed to the spontaneous formation of hetero-junctions between ZnO and ZnWO4 during the synthesis step, increasing electron/hole pair lifetimes. Recycling experiments revealed that the heterostructure was stable over time, indicating the commercial potential of this material. (C) 2019 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 13/13888-0 - Synthesis of BiVO4/bismuth oxides nano-heterostructures and evaluation of photocatalytic properties
Grantee:Osmando Ferreira Lopes
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/12304-0 - Evaluation of the photocatalytic activity of g-C3N4/Nb2O5 heterojunctions in the abatement of pollutants in gas phase
Grantee:Kele Tatiane Gomes Carvalho
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 16/09746-3 - Electro-/Photoelectrocatalysis reduction of CO2: efficiency, selectivity and oscillatory kinetics
Grantee:Osmando Ferreira Lopes
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/17639-4 - Obtainment of nanostructured semiconductors: correlation of the photocatalytic properties to their structural characteristic
Grantee:Waldir Avansi Junior
Support type: Regular Research Grants