Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Alexandre S. Anastácio"'
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 356:128-136
Iron oxides have been used as catalyst in different industrial applications, prominently in the petrochemical field. Natural goethites are interesting materials since they have a high surface area compared to their synthetic counterparts and also hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97022f13662d94e1cbfdf7fdfc20642e
https://doi.org/10.1016/j.molcata.2012.01.005
https://doi.org/10.1016/j.molcata.2012.01.005
Autor:
Reinhold Jahn, Reiner Dohrmann, Kristian Ufer, Joseph W. Stucki, Annette Kaufhold, Alexandre S. Anastácio, Stephan Kaufhold
Publikováno v:
Clays and Clay Minerals. 58:707-716
Allophane is a very fine-grained clay mineral which is especially common in Andosols. Its importance in soils derives from its large reactive surface area. Owing to its short-range order, allophane cannot be quantified by powder X-ray diffraction (XR
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51574aece59152144432de9f1563904c
https://doi.org/10.1346/ccmn.2010.0580509
https://doi.org/10.1346/ccmn.2010.0580509
Publikováno v:
Clays and Clay Minerals. 58:164-173
The placement of metal oxide pillars between clay mineral layers modifies their physical-chemical properties, including surface area, acidity, and catalytic activity. Aluminum is the most commonly used pillar cation, but the use of Fe offers a distin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::198869b35dc52a04cf07be714df28517
https://doi.org/10.1346/ccmn.2010.0580203
https://doi.org/10.1346/ccmn.2010.0580203
Autor:
Alexandre S. Anastácio, Maraisa Gonçalves, Luiz C.A. Oliveira, M. Nazzarro, Cínthia S. Castro, Mário César Guerreiro
Publikováno v:
Applied Catalysis A: General. 367:53-58
In this work materials based on iron oxide dispersed over activated carbon were prepared and tested in the H 2 O 2 decomposition and removal of the methylene blue (MB) model from aqueous solution. Two different supports were evaluated: a commercial a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4401c4d779fd9ebae9aedfecd685eb85
https://doi.org/10.1016/j.apcata.2009.07.032
https://doi.org/10.1016/j.apcata.2009.07.032
Autor:
Mário César Guerreiro, Luiz C.A. Oliveira, Alexandre S. Anastácio, Cínthia S. Castro, Maraisa Gonçalves
Publikováno v:
Journal of Hazardous Materials. 164:609-614
The adsorption features of activated carbon and the oxidation properties of iron oxides were combined in a composite to produce new materials for atrazine removal from aqueous medium. Activated carbon/iron oxide composites were prepared at 1/1 and 5/
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38e2f7aa836705bb27be1eca941b05d1
https://doi.org/10.1016/j.jhazmat.2008.08.066
https://doi.org/10.1016/j.jhazmat.2008.08.066
Autor:
Hudson Wallace Pereira de Carvalho, João Henrique Lopes, Diana Q.L. Oliveira, Teodorico C. Ramalho, Alexandre S. Anastácio, Luiz C.A. Oliveira, Adilson Cândido da Silva, Claudia E. Rodríguez Torres
Publikováno v:
Applied Catalysis A: General. 357:79-84
A series of Nb-containing hematites, Fe2−xNbxO3 (%Nb = 0.00, 1.49, 5.00 and 9.24) was prepared using the conventional co-precipitation method. Mossbauer and temperature-programmed reduction (TPR) measurements suggested the formation of the crystall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b63dbc686a2d3ebd10709893aef22065
https://doi.org/10.1016/j.apcata.2009.01.014
https://doi.org/10.1016/j.apcata.2009.01.014
Autor:
Karim Sapag, Adilson Cândido da Silva, João Henrique Lopes, Alexandre S. Anastácio, Luiz C.A. Oliveira, Francisco G.E. Nogueira, Maraisa Gonçalves
Publikováno v:
Applied Clay Science. 43:190-195
Catalytic and adsorptive behaviors of montmorillonite to remove methylene blue were investigated. The clay mineral showed high activity for the oxidation of methylene blue in presence of H2O2 and on removing the organic substrate through reactive ads
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba5c3667ddc9bc9416c675c8072f8066
https://doi.org/10.1016/j.clay.2008.08.004
https://doi.org/10.1016/j.clay.2008.08.004
Publikováno v:
Geochimica et Cosmochimica Acta. 72:5001-5008
The quantitative assay of clay minerals, soils, and sediments for Fe(II) and total Fe is fundamental to understanding biogeochemical cycles occurring therein. The commonly used ferrozine method was originally designed to assay extracted forms of Fe(I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f52e665d09d5e7802a984939382e8e40
https://doi.org/10.1016/j.gca.2008.07.009
https://doi.org/10.1016/j.gca.2008.07.009
Autor:
Heath J. Mills, Joseph W. Stucki, Joel E. Kostka, Lee J. Kerkhof, David B. Watson, Anthony V. Palumbo, Denise M. Akob, Kirsten Küsel, Alexandre S. Anastácio, Thomas M. Gihring, Kuk-Jeong Chin
Publikováno v:
Applied and Environmental Microbiology. 74:3159-3170
In order to elucidate the potential mechanisms of U(VI) reduction for the optimization of bioremediation strategies, the structure-function relationships of microbial communities were investigated in microcosms of subsurface materials cocontaminated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b3a63daf087ee39167af3344d49520d
https://doi.org/10.1128/aem.02881-07
https://doi.org/10.1128/aem.02881-07
Autor:
Faïza Bergaya, José Domingos Fabris, Joseph W. Stucki, Patrik Sellin, Amina Aouad, Alexandre S. Anastácio
Publikováno v:
Applied Clay Science. 39:172-179
Engineered barriers for high-level nuclear waste (HLW) consist of excavated repositories in sub-surface rock formations where canisters holding the radionuclide are stored. Clay minerals, particularly the swelling 2:1 types, are used as backfill mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4fd71374986a2432760de844c71c8f10
https://doi.org/10.1016/j.clay.2007.05.007
https://doi.org/10.1016/j.clay.2007.05.007