André E. Nogueira
Empresa Brasileira de Pesquisa Agropecuária
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Publication
Featured researches published by André E. Nogueira.
Journal of Catalysts | 2014
André E. Nogueira; Isabela A. Castro; Amanda S. Giroto; Zuy M. Magriotis
In this work, MCM-41, magnetite (MAG), and a composite of magnetite and MCM-41 (MCM-MAG) were synthesized by a simple route for the production of active systems in the decomposition of organic waste. The materials were characterized by N2 adsorption/desorption, X-ray diffraction analysis (XRD), temperature programmed reduction (TPR), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). Our results indicated that the decolorization kinetics of the dyes were in the order of MCM-MAG > MCM-41 > magnetite. Mineralization of the dyes was monitored by total organic carbon (TOC) decrease. The dye solutions could be completely decolorized and effectively mineralized, with an average overall TOC removal 43% for a Fenton-like reaction time of 180 min. The degradation activity of the MCM-MAG was stable during four consecutive experiments, confirming their stability and reusability of the composite. The great advantage of this composite is that it may be easily magnetically recovered and reused.
International Journal of Photoenergy | 2018
André E. Nogueira; Lucas S. Ribeiro; Luiz Fernando Gorup; Gelson T.S.T. da Silva; Fernando F. B. Silva; Caue Ribeiro; Emerson R. Camargo
Environmental problems related to the generation of wastewater contaminated with organic compounds and the emissions of pollutants from fuel burning have become major global problems. Thus, there is a need for the development of alternative and economically viable technologies for the remediation of the affected ecosystems. Therefore, this work describes the preparation and characterization of a Ti(OH)4 catalyst with the modified surface for application in the photodegradation of organic compounds (methylene blue (MB) dye and the drug amiloride (AML)) and in the artificial photosynthesis process. Characterization results reveal that peroxo groups on the surface of the catalyst had a great influence on the optical properties of the Ti(OH)4 and consequently in its photocatalytic property. This catalyst showed a high photocatalytic activity for the degradation of organic pollutants under visible radiation, reaching approximately 98% removal of both the dye and the drug in 150 min of reaction. In addition, the catalyst presented a great potential for the reduction of CO2 under ultraviolet (UV) radiation when compared to P25, which is a classic catalyst used in photocatalytic processes. The highest photocatalytic activity can be attributed to the strong visible light absorption, due to the narrow band gap, and the effective separation of photogenerated electron-hole pairs caused by the peroxo groups on the Ti(OH)4 surface.
Applied Catalysis B-environmental | 2016
Osmando F. Lopes; Kele T.G. Carvalho; André E. Nogueira; Waldir Avansi; Caue Ribeiro
Ceramics International | 2017
Kele T.G. Carvalho; André E. Nogueira; Osmando F. Lopes; Gabriela Byzynski; Caue Ribeiro
Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2016
André E. Nogueira; Amanda S. Giroto; Arquiminio B.S. Neto; Caue Ribeiro
Materials & Design | 2017
Cibele A. Oliveira; Diogo P. Volanti; André E. Nogueira; Camila A. Zamperini; Carlos Eduardo Vergani; Elson Longo
Chemical Engineering Journal | 2017
André E. Nogueira; Osmando F. Lopes; Arquiminio B.S. Neto; Caue Ribeiro
Applied Surface Science | 2018
Jéssica A. Oliveira; André E. Nogueira; Maria Carolina Pereira Gonçalves; Elaine C. Paris; Caue Ribeiro; Gael Poirier; Tania Regina Giraldi
Materials Chemistry and Physics | 2017
Nathália P. Ferraz; Francielle C.F. Marcos; André E. Nogueira; Alysson S. Martins; Marcos R.V. Lanza; Elisabete M. Assaf; Yvan J.O. Asencios
Ceramics International | 2016
P. Francatto; F.N. Souza Neto; André E. Nogueira; Andressa M. Kubo; L.S. Ribeiro; L.P. Gonçalves; Luiz Fernando Gorup; E. R. Leite; Emerson R. Camargo