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Synthesis and characterization of polyhedral oligomeric silsesquioxanes and their applications in process of adsorption and catalysis


The first series of nanomaterials will be obtained from a functionalization of an oligomer polyhedral silsesquioxane ( POSS ) precursor, called octa-(3-chloropropyl)octasilsesquioxane (POSS-PrCl), with six different organic molecules generating six different nanomaterials. This first set of materials will be named "POSS-Adsorbent(s)". The "POSS -Adsorbents" will be tested as adsorbents in the adsorption of some ions of heavy metals such as V(III), Fe(III) , Cr(III), Cu(II) and Pb(II), and/or others, from aqueous and non-aqueous solutions and adsorption and removal of some antibiotics such as cephalexin, ciprofloxacin, ampicillin, amoxicillin and / or others, in an aqueous medium. Additionally, one or more of nanomaterials "POSS - Adsorbents" will be selected and used in the determination, pre - concentration and separation of metal ions in aqueous and ethanol, synthetic and real samples (Rio Parana/SP and fuel ethanol), including retention and elutions of individual metals and mixtures of ions, using the method of column chromatography.The second set of nanomaterials involve the preparation of catalysts by reaction of the organometallic complex [Mo (h3-C3H5) (CO) 2 Br (NCME)2] and [W(h3-C3H5) (CO)2 Br (NCME)2] (where (h3-C3H5 = allyl and NCME = acetonitrile) with the nanomaterials prepared in the first series, called "POSS- Adsorbents". This second set of materials will be called "POSS-Catalyst(s)". The "POSS - catalysts" will be applied in the oxidation of some olefins such as cyclooctene, styrene, geraniol, limonene and/or others. The catalytic properties of the supported catalysts could be compared with those of the unsupported species. (AU)

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
VIEIRA, EDUARDO GUIMARAES; DAL-BO, ALEXANDRE GONCALVES; ALLIEVI FRIZON, TIAGO ELIAS; DIAS FILHO, NEWTON LUIZ. Synthesis of two new Mo(II) organometallic catalysts immobilized on POSS for application in olefin oxidation reactions. JOURNAL OF ORGANOMETALLIC CHEMISTRY, v. 834, p. 73-82, . (14/05566-5, 13/24602-0)
VIEIRA, EDUARDO GUIMARAES; SILVA, RAFAEL OLIVEIRA; FURLANI JUNIOR, ENES; DIAS FILHO, NEWTON LUIZ. Synthesis, characterization and catalytic application of a new organometallic oligomer based on polyhedral oligomeric silsesquioxane. Applied Organometallic Chemistry, v. 31, n. 10, . (14/05566-5, 13/24602-0)
VIEIRA, EDUARDO GUIMARAES; SILVA, RAFAEL OLIVEIRA; DAL-BO, ALEXANDRE GONCALVES; ALLIEVI FRIZON, TIAGO ELIAS; DIAS FILHO, NEWTON LUIZ. Syntheses and catalytic activities of new metallodendritic catalysts. NEW JOURNAL OF CHEMISTRY, v. 40, n. 11, p. 9403-9414, . (14/05566-5, 13/24602-0)
VIEIRA, EDUARDO G.; SOARES, ISAAC V.; PIRES, GEOVANNA; RAMOS, RICARDO A. V.; DO CARMO, DEVANEY R.; DIAS FILHO, NEWTON L.. Study on determination and removal of metallic ions from aqueous and alcoholic solutions using a new POSS adsorbent. CHEMICAL ENGINEERING JOURNAL, v. 264, p. 77-88, . (13/24602-0)
VIEIRA, EDUARDO G.; SILVA, RAFAEL O.; DO CARMO, DEVANEY R.; JUNIOR, ENES F.; DIAS FILHO, NEWTON L.. Synthesis and comparison of the activities of a catalyst supported on two silicate materials. Materials Chemistry and Physics, v. 191, p. 197-205, . (14/05566-5, 13/24602-0)
VIEIRA, EDUARDO G.; DIAS FILHO, NEWTON L.. Epoxidation of olefins using a novel synthesized tungsten dendritic catalyst. Materials Chemistry and Physics, v. 201, p. 262-270, . (14/05566-5, 13/24602-0)

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