Navegação Ciências Exatas e da Terra por Autor "Moro, Celso Camilo"
Resultados 1-14 de 14
-
A comparison of slurry and immobilized TIO2 in the photocatalytic degradation
Silva, Fernanda Vargas e; Lansarin, Marla Azario; Moro, Celso Camilo (2012) [Artigo de periódico]The photocatalytic degradation of phenol was studied using slurry and immobilized TiO2 as catalysts in order to compare the specific reaction rate constants, ks and kp. Losses from phenol evaporation, the time necessary ... -
Compósitos magnéticos baseados em hidrotalcitas para a remoção de contaminates aniônicos em água
Conceição, Leandro da; Pergher, Sibele Berenice Castellã; Moro, Celso Camilo; Oliveira, Luiz C.A. (2007) [Artigo de periódico]In this work the adsorption features of hydrotalcites (Al, Mg- CO3) and the magnetic properties of iron oxides have been combined in a composite to produce a magnetic adsorbent. These magnetic composites can be used as ... -
Decomposição do NO sobre Cu suportado em zeólitas
Oliveira, Andréa Marins de; Pergher, Sibele Berenice Castellã; Moro, Celso Camilo; Baibich, Ione Maluf (2004) [Artigo de periódico]Direct decomposition of NO on copper supported on zeolite catalysts such as MCM-22 and Beta was compared with that on the thoroughly studied Cu-ZSM-5. The catalysts were prepared by ion-exchange in basic media. They were ... -
Degradação fotocatalítica do fungicida tebuconazole em solução aquosa
Prestes, Thiago de Hermann; Gibbon, Danielle de Oliveira; Lansarin, Marla Azario; Moro, Celso Camilo (2010) [Artigo de periódico]The tebuconazole photocatalytic degradation kinetics was studied in a batch reactor using TiO2 (P25-Degussa) as catalyst and a high pressure mercury lamp. The photolysis, adsorption and irradiation effects in the reaction ... -
Estudo do efeito do cloreto em catalisadores de paládio usando a análise no infravermelho e de fotoelétrons excitados por raios X
Cunha, Eduardo V. da; Faccin, Flavio; Moro, Celso Camilo; Benvenutti, Edilson Valmir; Castro, Sandra C. de (2002) [Artigo de periódico]Chloride poisoning is known as having an inhibitor effect in the activity of metal catalysis. In this work in situ infrared spectroscopy (FTIR) of adsorbed carbon monoxide and x-ray photoelectron spectroscopy (XPS) were ... -
A FTIR study of the metal-support interactions and hydrogen spillover on Pd/TiO2 and Ni/TiO2
Faccin, Flavio; Guedes, Fabiana Flores; Benvenutti, Edilson Valmir; Moro, Celso Camilo (2002) [Artigo de periódico]Nickel and palladium dispersed on titania support were submitted to reductive treatment, under hydrogen, at 200 and 500 ºC. After the reductive thermal treatment the materials were exposed to carbon monoxide (10 Torr) and ... -
Isolation and identification of toxic chlorinated organic compounds present in black liquor of bleached cellulose pulp from Southern Brazil
Ionescu, Lavinel George; Moro, Celso Camilo (1989) [Artigo de periódico]Chemical components of untreated black liquor of cellulose pulp from Southern Brazil were extracted using macromolecular XAD-4 resin. The following compounds were identified qualitatively and/or quantitatively by capillary ... -
Materiais híbridos à base de sílica obtidos pelo método sol-gel
Benvenutti, Edilson Valmir; Moro, Celso Camilo; Costa, Tania Maria Haas; Gallas, Marcia Russman (2009) [Artigo de periódico]This review deals with silica based hybrid materials obtained by the sol-gel method. It involves concepts, classifications and important definitions regarding the sol-gel method that allows obtaining materials with organic ... -
Nanotubos de TiO2 dopados com nitrogênio : comparação das atividades fotocatalíticas de materiais obtidos através de diferentes técnicas
Moro, Celso Camilo; Lansarin, Marla Azario; Bagnara, Mônica (2012) [Artigo de periódico]TiO2 nanotubes were synthesized by hydrothermal method and doped with three nitrogen compounds to enhance photocatalytic activity under visible light. Catalysts were characterized by X-ray diffraction (XRD), transmission ... -
As secretarias regionais e as divisões científicas da Sociedade Brasileira de Química
Moro, Celso Camilo; Lopes, Norberto Peporine; Rocha-Filho, Romeu C. (2007) [Artigo de periódico]This article offers an overview on the historical facts and the recent state of the Regional Secretaries and the Scientific Divisions in the course of 30 years of SBQ. -
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais
Silva, William Leonardo da; Lansarin, Marla Azario; Moro, Celso Camilo (2013) [Artigo de periódico]Titanium dioxide nanostructured catalysts (nanotubes) doped with different metals (silver, gold, copper, palladium and zinc) were synthesized by the hydrothermal method in order to promote an increase in their photocatalytic ... -
A study of process variables for the photocatalytic degradation of rhodamine B
Soares, Edilberto Toscani; Lansarin, Marla Azario; Moro, Celso Camilo (2007) [Artigo de periódico]The photoactivated degradation reaction of rhodamine B (RB) was studied using P-25 TiO2 (Degussa) as catalyst. Three process variables – temperature, initial pH, and catalyst concentration – were evaluated. Temperature had ... -
Styrene photocatalytic degradation reaction kinetics
Taffarel, Silvio Roberto; Lansarin, Marla Azario; Moro, Celso Camilo (2011) [Artigo de periódico]A reação de degradação fotocatalítica do estireno foi estudada utilizando-se TiO2 P-25 (Degussa) como catalisador. Os experimentos foram realizados em um reator “slurry” em bateladas, com controle de temperatura, empregando-se ... -
Synthesis of silica xerogels with high surface area using acetic acid as catalyst
Arenas, Leliz Ticona; Simm, Carolina Wildner; Gushikem, Yoshitaka; Dias, Silvio Luis Pereira; Moro, Celso Camilo; Costa, Tania Maria Haas; Benvenutti, Edilson Valmir (2007) [Artigo de periódico]Nesse trabalho foi estudada a influência do ácido acético na estrutura de poros e na área superficial de sílicas preparadas pelo método sol-gel. Condições experimentais de síntese, tais como temperatura de policondensação ...