Incorporation of 4-Amino-3-hydrazino-5-mercapto-1,2,4-triazole onto mesoporous silica surface for trace Cu(II), Cd(II), Ni(II), Pb(II) e Co(II) determination in Tietê River water samples

• Grant number: 12/21795-9
• Support Opportunities: Regular Research Grants
• Start date: May 01, 2013
• End date: April 30, 2015
• Field of knowledge: Engineering - Chemical Engineering - Chemical Technology
• Principal Investigator: Gustavo Rocha de Castro
• Grantee: Gustavo Rocha de Castro
• Host Institution: Instituto de Biociências (IBB). Universidade Estadual Paulista (UNESP). Campus de Botucatu. Botucatu , SP, Brazil

Abstract

The direct determination of metals species existing in trace levels in natural water is generally difficult due to the presence of interfering species. The metals that will be determined, Cu(II), Cd(II), Ni(II), Pb(II) e Co(II) are of environmental interest as a consequence of its widespread use and non degradability and may accumulate in compartments stating its toxicity. The aim of the present project is the use of mesoporous silica as solid support for the anchoring of a 4-amino-3hidrazino-5-mercapto-1,2,4-triazole molecule and its application in the preconcentration of metal species from aqueous samples. The developed material will be characterized through infrared spectroscopy (FTIR), nuclear magnetic resonance of 13C e 29Si (NMR), surface area measuring (BET method) and elemental analysis to attest the modification reaction occurrence. The material will be applied in adsorption studies to determine the maximum adsorption capacity, the optimum pH, the kinetics behavior and the influence of some interfering ions in the adsorption equilibrium. After adsorption experiments the material will be applied in the flow injection analysis (FIA) coupled to FAAS in order to determine Cu(II), Cd(II), Ni(II), Pb(II) e Co(II) in water (after mineralization) from Tietê River. The results obtained will be compared with those obtained through direct determination using electrothermal atomization in graphite furnace (GFAAS). The proposed method will be certified through the analysis of reference material of water (SEM 1643e). (AU)

Scientific publications

(7)

(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)

IVASSECHEN, JANAINE DO ROCIO; JORGETTO, ALEXANDRE DE OLIVEIRA; PEREIRA WONDRACEK, MARCOS HENRIQUE; PERES DA SILVA, ADRIELLI CRISTINA; ZARA, LUIZ FABRICIO; PEDROSA, VALBER DE ALBUQUERQUE; ROCHA, BRUNO PRIOR; SAEKI, MARGARIDA JURI; CASTRO, GUSTAVO ROCHA. Adsorptive properties of mesoporous silica modified with Lewis base molecule and its application in the preconcentration of Cu(II), Co(II), and Cd(II) from aqueous media. TURKISH JOURNAL OF CHEMISTRY, v. 42, n. 2, p. 547-561, 2018. (12/21795-9, 15/04791-8, 15/05224-0, 13/22955-2)

SILVA, ADRIELLI C. P.; JORGETTO, ALEXANDRE O.; WONDRACEK, MARCOS H. P.; SAEKI, MARGARIDA J.; SCHNEIDER, JOSE F.; PEDROSA, VALBER A.; MARTINES, MARCO A. U.; CASTRO, GUSTAVO R.. Characterization of Corn (Zea mays) Leaf Powder and Its Adsorption Properties Regarding Cu(II) and Cd(II) from Aqueous Samples. BIORESOURCES, v. 10, n. 1, p. 1099-1114, 2015. (12/21795-9, 13/22955-2)

WONDRACEK, MARCOS HENRIQUE P.; JORGETTO, ALEXANDRE OLIVEIRA; SILVA, ADRIELLI CRISTINA P.; IVASSECHEN, JANAINE DO ROCIO; SCHNEIDER, JOSE FABIAN; SAEKI, MARGARIDA JURI; PEDROSA, VALBER ALBUQUERQUE; YOSHITO, WALTER KENJI; COLAUTO, FABIANO; ORTIZ, WILSON A.; et al. Synthesis of mesoporous silica-coated magnetic nanoparticles modified with 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole and its application as Cu(II) adsorbent from aqueous samples. Applied Surface Science, v. 367, p. 533-541, MAR 30 2016. (12/21795-9, 15/04791-8, 15/05224-0, 13/22955-2)

PEREIRA, MILENE S.; MARTINS, AMANDA E.; JORGETTO, ALEXANDRE O.; SANTOS, FELIPE A.; SILVA, RAFAEL I. V.; SAEKI, MARGARIDA J.; MARTINES, MARCO A. U.; JORGE, SONIA M. A.; CASTRO, GUSTAVO R.. CASTOR LEAF POWDER AS A BIOSORBENT FOR Cu(II) REMOVAL AND PRECONCENTRATION OF NATURAL WATER SAMPLES. ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, v. 17, n. 1, p. 165-173, JAN 2018. (12/21795-9, 11/14944-5)

JORGETTO, A. O.; SILVA, R. I. V.; SAEKI, M. J.; BARBOSA, R. C.; MARTINES, M. A. U.; JORGE, S. M. A.; SILVA, A. C. P.; SCHNEIDER, J. F.; CASTRO, G. R.. Cassava root husks powder as green adsorbent for the removal of Cu(II) from natural river water. Applied Surface Science, v. 288, p. 356-362, JAN 1 2014. (12/21795-9, 11/14944-5)

JORGETTO, ALEXANDRE DE OLIVEIRA; PEREIRA, SILVANA PONTES; VIEIRA DA SILVA, RAFAEL INNOCENTI; SAEKI, MARGARIDA JURI; UTRERA MARTINES, MARCO ANTONIO; PEDROSA, VALBER DE ALBUQUERQUE; DE CASTRO, GUSTAVO ROCHA. Application of Mesoporous SBA-15 Silica Functionalized With 4-amino-2-Mercaptopyrimidine for the Adsorption of Cu(II), Zn(II), Cd(II), Ni(II), and Pb(II) From Water. ACTA CHIMICA SLOVENICA, v. 62, n. 1, p. 111-120, 2015. (12/21795-9, 11/14944-5)

JORGETTO, ALEXANDRE DE O.; DA SILVA, ADRIELLI C. P.; WONDRACEK, MARCOS H. P.; SILVA, RAFAEL I. V.; VALINI, EDIVALDO D.; SAEKI, MARGARIDA J.; PEDROSA, VALBER A.; CASTRO, GUSTAVO R.. Multilayer adsorption of Cu(II) and Cd(II) over Brazilian Orchid Tree (Pata-de-vaca) and its adsorptive properties. Applied Surface Science, v. 345, p. 81-89, AUG 1 2015. (12/21795-9, 13/22955-2)