Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Sara Silveira Vieira"'
Autor:
Carlos Henrique Callegario Zacchi, Sara Silveira Vieira, José Domingos Ardisson, Maria Helena Araujo, Ângelo de Fátima
Publikováno v:
Journal of Saudi Chemical Society, Vol 23, Iss 8, Pp 1060-1069 (2019)
An immobilized p-sulfonic acid calix[4]arene was synthesized on the surface of silica-coated Fe3O4 nanoparticles. Due to the combination of the magnetic recovery and the acid properties, it acted as a robust, safe and environmentally friendly catalys
Externí odkaz:
https://doaj.org/article/f5992301522f4eb3826b4b2bd59de08d
Autor:
Luiz Gustavo de Lima Guimarães, Maria das Graças Cardoso, Paulo Estevão de Sousa, Juliana de Andrade, Sara Silveira Vieira
Publikováno v:
Revista Ciência Agronômica, Vol 42, Iss 2, Pp 464-472 (2011)
Tendo em vista a importância dos óleos essenciais, objetivou-se, com este trabalho, avaliar a atividade antioxidante e os efeitos fungitóxicos do óleo essencial de capim-limão e do seu constituinte majoritário citral sobre a inibição micelial
Externí odkaz:
https://doaj.org/article/78da290d45d547e39c4bc4a576ddd42b
Autor:
Rafaela Karin Lima, Maria das Graças Cardoso, Jair Campos Moraes, Stephan Malfitano Carvalho, Bruno Almeida Melo, Sara Silveira Vieira
Publikováno v:
Arquivos do Instituto Biológico, Vol 81, Iss 1, Pp 22-29
Este trabalho teve como objetivo identificar e quantificar os constituintes dos óleos essenciais de Illicum verum, Ageratum conyzoides,Piper hispidinervume Ocotea odorifera, bem como avaliar a toxicidade para o pulgão-verde Schizaphis graminum. A q
Externí odkaz:
https://doaj.org/article/9151d4bf90784e7bb4605f0af7b8f035
Publikováno v:
Revista Virtual de Química. 14:468-483
Autor:
Luisa E. Milagre, Tatiana A. Ribeiro-Santos, Maria Helena Araujo, Mateus Carvalho Monteiro de Castro, Vitor Fernandes De Almeida, Sara Silveira Vieira, Ana Paula C. Teixeira
Publikováno v:
Catalysis Today. 344:32-40
In this work, we describe the synthesis of N doped carbon nanomaterials from mesoporous silica impregnated with iron (10 wt%), using acetonitrile as carbon and nitrogen source by CVD process at 600, 650, 700 and 800 °C. The obtained materials showed
Autor:
Rochel Montero Lago, Ana Paula C. Teixeira, Ottávio Carmignano, Sara Silveira Vieira, Alexandre C. Bertoli, Mayra Aparecida Nascimento, Fabiane Carvalho Ballotin
Publikováno v:
International Journal of Minerals, Metallurgy and Materials. 27:46-54
In this work, different magnesium silicate mineral samples based on antigorite, lizardite, chrysotile (which have the same general formula Mg3Si2O5(OH)4), and talc (Mg3Si4O10(OH)2) were reacted with KOH to prepare catalysts for biodiesel production.
Autor:
José D. Ardisson, Thais Fernandes Moratta, Iara R. Guimarães, Aline Aparecida Caetano, Julio C. S. Terra, Sara Silveira Vieira, Pricila Maria Batista Chagas
Publikováno v:
Catalysis Science & Technology. 10:5013-5026
In the present study, chitosan-stabilized iron oxide (CSFe) materials were synthesized, and Cu2+ ions were introduced to the CSFe materials by isomorphic substitution (CSFeCu5, CSFeCu10, CSFeCu15). The beads were subjected to thermal treatments under
Autor:
Maria Helena Araujo, José D. Ardisson, Carlos Henrique Callegario Zacchi, Sara Silveira Vieira, Ângelo de Fátima
Publikováno v:
Journal of Saudi Chemical Society, Vol 23, Iss 8, Pp 1060-1069 (2019)
An immobilized p-sulfonic acid calix[4]arene was synthesized on the surface of silica-coated Fe3O4 nanoparticles. Due to the combination of the magnetic recovery and the acid properties, it acted as a robust, safe and environmentally friendly catalys
Autor:
Fabio B. Passos, Luanne Ester Monteiro Ferreira, Thiago Lima, Sara Silveira Vieira, Vinicius Madriaga, Ruan Stevan de Almeida Ribeiro, Sancler Vasconcelos, Eric Shimabukuro, Vinicius Rossa
Publikováno v:
Química Nova.
A BRIEF OVERVIEW ON SINGLE-ATOM CATALYSIS: CONCEPTS AND APPLICATIONS. Catalytic processes became extremely important for the development of our society, especially after the second industrial revolution. Thus, the research for more efficient catalyst
Autor:
Sara Silveira Vieira, Ana Paula C. Teixeira, Fernando Soares Lameiras, Ottávio Carmignano, Paulo Roberto Gomes Brandão, Rochel M. Lago
Publikováno v:
Journal of the Brazilian Chemical Society v.32 n.10 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 32, Issue: 10, Pages: 1895-1911, Published: 01 OCT 2021
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 32, Issue: 10, Pages: 1895-1911, Published: 01 OCT 2021
Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application of two typical IOT, i.e., fine and coarse wastes. The