Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Geani Maria Ucoski"'
Autor:
Vannia Cristina dos Santos-Durndell, Tailor Machado Peruzzolo, Geani Maria Ucoski, Luiz Pereira Ramos, Shirley Nakagaki
Publikováno v:
Biofuel Research Journal, Vol 5, Iss 2, Pp 806-812 (2018)
Solid magnetic nanoparticles (magnetite = Mag) composed of Fe3O4 and magnetite coated with silica (Fe3O4/SiO2 = Mag/Si) were prepared from inexpensive starting materials. The catalytic activity of the solids was investigated for palmitic acid esterif
Externí odkaz:
https://doaj.org/article/ec6dd51ac79c4f3386f3914f01acfb5e
Autor:
Kelly Aparecida Dias de Freitas Castro, Geani Maria Ucoski, Gabriel Kaetan Baio Ferreira, Shirley Nakagaki
Publikováno v:
Molecules, Vol 18, Iss 6, Pp 7279-7308 (2013)
The synthetic versatility and the potential application of metalloporphyrins (MP) in different fields have aroused researchers’ interest in studying these complexes, in an attempt to mimic biological systems such as cytochrome P-450. Over the last
Externí odkaz:
https://doaj.org/article/6fdd53f9182d4b9bbe71cfeeed59c4e7
Publikováno v:
Química Nova, Vol 40, Iss 6, Pp 680-687
The present article describes the development of the Inorganic Chemistry in Brazil in the last 15 years, using as starting point the scientific contributions of a group of 405 researchers selected among the members of the Inorganic Chemistry Division
Externí odkaz:
https://doaj.org/article/0a264ab09df64d8f8cd8e54d0ef07fc6
Autor:
Geani Maria Ucoski, Murilo Gonçalves da Rocha, Shirley Nakagaki, Fernando Wypych, Guilherme Sippel Machado
Publikováno v:
Journal of Colloid and Interface Science. 541:425-433
This paper reports the use of two layered hydroxide salts (LHS) (zinc hydroxide nitrate – ZHN – Zn5(OH)8(NO3)2·2H2O, and zinc hydroxide chloride – ZHC – Zn5(OH)8Cl2·H2O) as catalysts for brilliant green (BG) organic dye bleaching, using hyd
Autor:
Renaldo Marcos da Silva, Gilson DeFreitas-Silva, Júlio S. Rebouças, Irineu Mazzaro, Shirley Nakagaki, Geani Maria Ucoski, Fábio Souza Nunes, Victor Hugo Araújo Pinto
Publikováno v:
Microporous and Mesoporous Materials. 265:84-97
This work describes the immobilization of neutral and cationic Mn porphyrins (MnP) on magnetic SBA-15 mesoporous silica. XRD patterns, TEM images and N2 adsorption-desorption analyses showed that the prepared solids had high surface areas and homogen
Autor:
Tailor Machado Peruzzolo, Shirley Nakagaki, Vannia Cristina dos Santos-Durndell, Luiz Pereira Ramos, Geani Maria Ucoski
Publikováno v:
Biofuel Research Journal, Vol 5, Iss 2, Pp 806-812 (2018)
Solid magnetic nanoparticles (magnetite = Mag) composed of Fe3O4 and magnetite coated with silica (Fe3O4/SiO2 = Mag/Si) were prepared from inexpensive starting materials. The catalytic activity of the solids was investigated for palmitic acid esterif
Autor:
Júlio S. Rebouças, Victor Hugo Araújo Pinto, Geani Maria Ucoski, Gilson DeFreitas-Silva, Fábio Souza Nunes, Irineu Mazzaro, Shirley Nakagaki
Publikováno v:
ChemistrySelect. 2:3703-3715
The immobilization of cationic manganese porphyrins (MnP) over the surface of a magnetic hexagonal HMS silica (HMS-Mag) produced a solid with high surface area and relatively homogeneous pores. Given the presence of the magnetite, the catalysts are e
Autor:
Alexandre Moreira Meireles, Shirley Nakagaki, Vinicius Santos da Silva, Warleson Cândido dos Santos Vieira, Gilson DeFreitas-Silva, Ynara Marina Idemori, Geani Maria Ucoski
Publikováno v:
New Journal of Chemistry. 41:997-1006
A novel third-generation metalloporphyrin, chloro-5,10,15,20-tetrakis-(3′-bromine-4′-methoxyphenyl)-2,3,7,8,12,13,17,18-octabromoporphyrinatomanganese(III), [MnIIIBr12T4(-OMe)PPCl], designated as MnBr12Por, was synthesized and characterized. The
Autor:
Emerson H. de Faria, Júlio S. Rebouças, Geani Maria Ucoski, Rosane A. S. San Gil, Victor Hugo Araújo Pinto, Breno F. Ferreira, Shirley Nakagaki
Publikováno v:
Applied Catalysis A: General. 526:9-20
In this work, solid catalysts were prepared by the heterogenization of Mn porphyrins (MnP) on mesoporous silica SBA-15 by two simple strategies: (1) immobilization of the three cationic isomers of Mn(III) N -methylpyridiniumporphyrins (MnTM-X-PyPCl 5
Autor:
Fábio Souza Nunes, Guilherme Sippel Machado, Shirley Nakagaki, Fernando Wypych, Gilson de Freitas Silva, Geani Maria Ucoski
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 408:123-131
Synthetic metalloporphyrins can oxidize organic substrates efficiently and selectively in the presence of different oxygen donors. In an attempt to propose new catalytic systems to treat industrial effluents, researchers have recently turned their at