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

Heterostructured semiconductors: an approach about the main challenges for obtaining and application on environmental and energy photochemical processes

Full text
Author(s):
Romero T. Bueno [1] ; Osmando F. Lopes [2] ; Kele T. G. Carvalho [3] ; Caue Ribeiro ; Henrique A. J. L. Mourão [5]
Total Authors: 5
Affiliation:
[1] Universidade Federal dos Vales do Jequitinhonha e Mucuri. Instituto de Ciência e Tecnologia - Brasil
[2] Universidade Federal de Uberlândia. Instituto de Química - Brasil
[3] Embrapa Instrumentação. Laboratório Nacional de Nanotecnologia para o Agronegócio - Brasil
[5] Universidade Federal dos Vales do Jequitinhonha e Mucuri. Instituto de Ciência e Tecnologia - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Química Nova; v. 42, n. 6, p. 661-675, 2019-08-15.
Abstract

Heterostructured semiconductors are materials with unique features formed by combination of two or more semiconductors with suitable interface between them. The study of the heterostructures aim the development of physico-chemical and photocatalytic properties higher than their isolated phases, which makes it possible to obtain higher efficiency and lower cost in several technological processes. Recently the heterostructured materials have been extensively used in the development of alternative technologies either for environmental pollution control or for renewable energy production, among other applications. However, the obtaining of a heterostructure with suitable features is not trivial. In this way, this review article presents a broad discussion about methods of obtaining heterostructures formed by semiconductors and their applications in the photochemical processes, mainly in the environmental field. It will be addressed the use of the heterostructures in photocatalytic application for the organic pollutants degradation, heavy metals removal, the inactivation of pathogenic microorganisms, beyond of the volatile organic compounds (VOC’s) photooxidation and the photocatalytic abatement of nitrogen oxide (NOx) in gaseous phase. Finally, a discussion about the carbon dioxide (CO2) photoreduction and hydrogen (H2) production focusing mainly in the chemical energy production will be presented. (AU)

FAPESP's process: 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products
Grantee:José Maria Correa Bueno
Support Opportunities: Research Projects - Thematic Grants
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 Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 13/13888-0 - Synthesis of BiVO4/bismuth oxides nano-heterostructures and evaluation of photocatalytic properties
Grantee:Osmando Ferreira Lopes
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 16/09746-3 - Electro-/Photoelectrocatalysis Reduction of CO2: Efficiency, Selectivity and Oscillatory Kinetics
Grantee:Osmando Ferreira Lopes
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 15/14330-8 - Studies in the synthesis and application of semiconducting nanocrystal heterostructures in artificial photosynthetic processes
Grantee:Cauê Ribeiro de Oliveira
Support Opportunities: Research Program on Global Climate Change - Regular Grants
FAPESP's process: 18/04558-0 - Photocatalytic reduction of CO2 over g-C3N4/Nb2O5 heterostructures into high value-added products using visible light
Grantee:Kele Tatiane Gomes Carvalho
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor