Search Results - "K.J. Ciuffi"

Preparation and characterization of new Ni-aluminosilicate catalysts and their performance in the epoxidation of ( Z)-cyclooctene by Ciuffi, K.J., Nassar, E.J., Rocha, L.A., da Rocha, Z.N., Nakagaki, S., Mata, G., Trujillano, R., Vicente, M.A., Korili, S.A., Gil, A.

“…This work reports the preparation of two series of Ni-aluminosilicates by the sol–gel and the co-precipitation methods. The main difference between the two…”
Get full text

A review of organic-inorganic hybrid clay based adsorbents for contaminants removal: Synthesis, perspectives and applications by Gil, A., Santamaría, L., Korili, S.A., Vicente, M.A., Barbosa, L.V., de Souza, S.D., Marçal, L., de Faria, E.H., Ciuffi, K.J.

“…Clay minerals are a very interesting platform for the development of novel functional materials. For years, there has been a growing interest in this field…”
Get full text

M(II)-Al-Fe layered double hydroxides synthesized from aluminum saline slag wastes and catalytic performance on cyclooctene oxidation by Santamaría, L., Oliveira García, L., de Faria, E.H., Ciuffi, K.J., Vicente, M.A., Korili, S.A., Gil, A.

“…[Display omitted] •M(II)AlFe-LDH were prepared from aluminum saline slags by a co-precipitation method.•LDH synthesized from slags were used as catalysts for…”
Get full text

Detection of Cr(III), prometryn, and ibuprofen by hybrid Eu(III)–dipicolinate kaolinite luminescent sensor by Clementino, F.C., Peixoto, V.G., de Araújo, D.T., Ciuffi, K.J., Nassar, E.J., Vicente, M.A., Rives, V., de Faria, E.H.

“…Europium (III) was complexed on solids prepared by kaolinite functionalization with pyridine 2–carboxylic and pyridine 2,6–dicarboxylic acids; the luminescent…”
Get full text

Luminescent properties of biohybrid (kaolinite-proline) materials synthesized by a new boric acid catalyzed route and complexed to Eu3 by de Araújo, D.T., de Pádua, G.S., Peixoto, V.G., Ciuffi, K.J., Nassar, E.J., Vicente, M.A., Trujillano, R., Rives, V., Pérez-Bernal, M.E., de Faria, E.H.

“…The properties of Eu3+-biohybrid (kaolinite-proline) materials were investigated by powder X-ray diffraction, vibrational spectroscopy, scanning electron…”
Get full text

Novel reactive amino-compound: Tris(hydroxymethyl)aminomethane covalently grafted on kaolinite by de Faria, E.H., Ciuffi, K.J., Nassar, E.J., Vicente, M.A., Trujillano, R., Calefi, P.S.

“…A novel reactive solid containing amine groups was prepared by functionalization of the Brazilian São Simão kaolinite with tris(hydroxymethyl)aminomethane,…”
Get full text

Rapid microwave-assisted synthesis of saponites and their use as oxidation catalysts by Trujillano, R., Rico, E., Vicente, M.A., Rives, V., Ciuffi, K.J., Cestari, A., Gil, A., Korili, S.A.

“…Saponites containing divalent Mg, Ni, or Fe as octahedral cations and trivalent Al and Fe substituting Si in the tetrahedral sheet were synthesized using…”
Get full text

Controlling silicate meso-structures using sucupira oil as a new swelling agent by Batista, J.N.M., de Faria, E.H., Calefi, P.S., Ciuffi, K.J., Nassar, E.J., Cunha, W.R., Caiut, J.M.A., Rocha, L.A.

“…Small angle X-ray scattering (SAXS) patterns of samples synthesized in different oil concentrations. [Display omitted] ► Expanded mesoporous silica have been…”
Get full text

Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation by Caetano, B.L., Rocha, L.A., Molina, E., Rocha, Z.N., Ricci, G., Calefi, P.S., de Lima, O.J., Mello, C., Nassar, E.J., Ciuffi, K.J.

“…This work describes the optimized conditions for the preparation of cobalt aluminum silicate complexes through a simplified methodology. These materials,…”
Get full text

(Z)-cyclooctene epoxidation and cyclohexane oxidation on Ni/alumina-pillared clay catalysts by Mata, G., Trujillano, R., Vicente, M.A., Korili, S.A., Gil, A., Belver, C., Ciuffi, K.J., Nassar, E.J., Ricci, G.P., Cestari, A., Nakagaki, S.

“…This work reports the synthesis of Ni-clay catalysts by impregnation of Al-pillared saponite with various Ni salts, using several Ni loadings. The catalysts…”
Get full text

Removal of organic pollutants from industrial wastewater: performance evaluation of inorganic adsorbents based on pillared clays by Assis, F.C.C., Albeniz, S., Gil, A., Korili, S.A., Trujillano, R., Vicente, M.A., Marçal, L., Saltarelli, M., Ciuffi, K.J.

“…This work reports the application of a natural clay and an alumina-pillared clay as adsorbents for the removal of a basic dye, Methylene Blue, from aqueous…”
Get full text

Investigation of a new oxidative catalytic system involving Jacobsen's catalyst in the absence of organic solvents by Guedes, D.F.C., Leod, T.C.O. Mac, Gotardo, M.C.A.F., Schiavon, M.A., Yoshida, I.V.P., Ciuffi, K.J., Assis, M.D.

“…In this work, the commercially available Jacobsen's catalyst, Mn(salen), was occluded in a hybrid polymeric membrane based on poly(dimethylsiloxane) (PDMS)…”
Get full text

Removal of organic pollutants from industrial wastewater: performance evaluation of inorganic adsorbents based on pillared clays by ASSIS, F. C. C, ALBENIZ, S, GIL, A, KORILI, S. A, TRUJILLANO, R, VICENTE, M. A, MARCAL, L, SALTARELLI, M, CIUFFI, K. J

“…This work reports the application of a natural clay and an alumina-pillared clay as adsorbents for the removal of a basic dye, Methylene Blue, from aqueous…”
Get full text

Preparation and study of the titanium oxide thin films doped with Tb3+ and Ce3+ ions by Molina, E.F., Rocha, L.A., Caetano, B.L., Ciuffi, K.J., Calefi, P.S., Nassar, E.J.

“…In this study, we investigated the dependence of the thickness and refractive index of thin films on the withdrawal speed. The films were produced by…”
Get full text

Factors which affect the catalytic activity of iron(III) meso tetrakis(2,6-dichlorophenyl) porphyrin chloride in homogeneous system by Iamamoto, Yassuko, Assis, Marilda D., Ciuffi, Kátia J., Sacco, Hérica C., Iwamoto, Lídia, Melo, Andrea J.B., Nascimento, Otaciro R., Prado, Cynthia M.C.

“…An optimization study of the reaction conditions of Fe(TDCPP)Cl when it is used as catalyst in the hydroxylation of cyclohexane by iodosylbenzene (PhIO) has…”
Get full text

Characterization of iron(III)porphyrin-hydroxo complexes in organic media through UV-Vis and EPR spectroscopies by Manso, C.M.C.P., Neri, C.R., Vidoto, E.A., Sacco, H.C., Ciuffi, K.J., Iwamoto, L.S., Iamamoto, Y., Nascimento, O.R., Serra, O.A.

“…The interaction of OH − with Fe(TPP) +, Fe(TDCPP) +, Fe(TMP) + and Fe(TFPP) + in 1,2-dichloroethane was studied by titrating FeP solutions with aliquots of a…”
Get full text

Comportamento térmico de alguns fármacos e medicamentos by L.C. Mamede, B.L. Caetano, L.A. Rocha, E.M. Ferreira, A. Cestari, C.R. Kfuri, K.J. Ciuffi, P.S. Calefi, C. Mello, W.R. Cunha, E.J. Nassar

“…A técnica de análise térmica apresenta aplicações em diversos ramos da ciência, entre eles a indústria farmacêutica, a qual pode utilizá-la para caracterização…”
Get full text