4-amine-2-mercaptopyrimidine modified silica gel applied in Cd(II) and Pb(II) extraction from an aqueous medium

• Authors: Adriano Pereira , Guilherme Ferreira , Laercio Caetano , Renata Castro , Ademir Santos , Pedro Padilha , Gustavo Castro
• Languages of publication: EN

Abstracts

EN

This paper discusses silica surface modification by a process involving a two-step reaction: anchoring of a silylating agent, followed by an attachment of a 4-amino-2-mercaptopyrimidine molecule. The modified material (Si-BP) was successfully characterized by the FTIR spectra, which revealed amine absorption bands, and through 13C and 29Si NMR spectra, which confirm the proposed structure of the modified silica (Si-BP). Si-BP was used to extract cadmium and lead from an aqueous medium at 298 K. The Si-BP kinetics towards metal ions was very fast, i.e., about 10 minutes, although extraction was significantly impaired at pH 3. The series of adsorption isotherms were adjusted to a modified Langmuir equation and the maximum extraction capacity was 0.193 and 0.387 mmol g-1 for Cd(II) and Pb(II), respectively. An analysis of the Ø values lead to the inference that the resulting metal ligand complex was type 1:1.

Keywords

EN

4-amine-2-mercaptopyrimidine; silica; metal extraction; aqueous medium

• Publisher: De Gruyter Open
• Journal: Polish Journal of Chemical Technology
• Year: 2010
• Volume: 12
• Issue: 1
• Pages: 7-11

Dates

published

1 - 1 - 2010

online

8 - 4 - 2010

Contributors

author

Adriano Pereira

• Departamento de Física e Química, Universidade Estadual Paulista, C.P. 31, 15385-000, Ilha Solteira, SP, Brazil

author

Guilherme Ferreira

• Departamento de Física e Química, Universidade Estadual Paulista, C.P. 31, 15385-000, Ilha Solteira, SP, Brazil

author

Laercio Caetano

• Departamento de Física e Química, Universidade Estadual Paulista, C.P. 31, 15385-000, Ilha Solteira, SP, Brazil

author

Renata Castro

• Departamento de Fitotecnia e Tecnologia de alimentos, C.P. 31, 15385-000, Ilha Solteira, SP, Brazil

author

Ademir Santos

• Departamento de Química Analítica, 14800-900, Araraquara, SP, Brazil

author

Pedro Padilha

author

Gustavo Castro

• Departamento de Física e Química, Universidade Estadual Paulista, C.P. 31, 15385-000, Ilha Solteira, SP, Brazil

References

• Manahan, S. E. Environmental Science and Technology. Boca Raton: Lewis
• Besser, J. M., Brumbaugh, W. G., Allert, A. L., Poulton, B. C., Schmitt, C. J. & Ingersoll, C. G. (2009). Ecological impacts of lead mining on Ozark streams: Toxicity of sediment and pore water. Ecotox. Environ. Safe. 72, 516 - 526. DOI: 10.1016/j.ecoenv.2008.05.013.[Crossref]
• Minello, M. C. S., Paçó, A. L., Martines, M. A. U., Caetano, L., Santos, A., Padilla, P. M. & Castro, G. R. (2009). Sediment grain size distribution and heavy metals determination in a dam on the Paraná River at Ilha Solteira, Brazil. J. Environ. Sci. Heal. A. 44, 861 - 865. DOI: 10.1080/10934520902958591[Crossref]
• Deheyn, D. D. & Latz, M. I. (2006). Bioavailability of metals along a contamination gradient in San Diego Bay (California, USA). Chemosphere. 63, 818 - 834. DOI: 10.1016/j.chemosphere.2005.07.066.[Crossref]
• Liu. X-J., Ni, I.-H. & Wang, W.-X. (2002). Trophic transfer of heavy metals from freshwater zooplankton Daphnia magna to zebrafish Danio reiro. Water Res. 36, 4563 - 4569. DOI: 10.1016/S0043-1354(02)00180-X.[Crossref]
• Woodberry, P., Stevens, G., Northcott, K., Snape, I. & Stark, S. (2007). Field trial of ion-exchange resins columns for removal of metal contaminants, Thala Valley Tip, Casey Station, Antartica. Cold Reg. Sci. Techno. 48, 105 - 117. DOI: 10.1016/j.coldregions.2006.08.001.[Crossref]
• Rengaraj, S., Yeon, J.-W., Kim, Y., Jung, Y., Ha, Y.-K. & Kim, W.-H. (2007). Adsorption characteristics of Cu(II) onto ion exchange resins 252H and 1500H: Kinetics, isotherms and error analysis. J. Hazard. Mater. 143, 469 - 477. DOI: 10.1016/j.jhazmat.2006.09.064.[Crossref]
• Melek, E., Tuzen, M., Soylak, M. (2006). Flame atomic absorption spectrometric determination of cadmium(II) and lead(II) after their solid phase extraction as dibenzyldithiocarbamate chelates on Dowex Optipore V-493. Anal. Chim. Acta. 578, 213 - 219. DOI: 10.1016/j.aca.2006.07.003.[Crossref]
• Soylak, M. & Erdogan, N. D. (2006). Copper(II)-rubeanic acid coprecipitation system for separation-preconcentration of trace metal ions in environmental simples for their flame atomic absorption spectrometry determinations. J. Hazard. Mater. 137, 1035 - 1041. DOI: 10.1016/j.jhazmat.2006.03.031.[Crossref]
• Amin, A. S. (2009). Utilization of solid phase spectrometry for the determination of trace amounts of copper using 5-(2-benzothiazolylazo)-8-hydroxyquinoline. Chem. Pap. 63, 625 - 634. DOI: 10.2478/s11696-009-0067-x.[Crossref]
• Rivas, R. E., López-Garcia, I., Hernández-Córdoba, M. (2009). Determination of traces of lead and cadmium using dispersive liquid-liquid microextraction followed by electrothermal atomic absorption spectrometry. Microchim. Acta. 166, 355 - 361. DOI: 10.1007/s00604-009-0206-7.[Crossref]
• Alves, V. N., Mosquetta, R., Coelho, N, M, M., Bianchin, J. N., Roux, K. C. D. P., Martendal, E., Carasek, E. (2010). Determination of cadmium in alcohol fuel using Moringa oleifera seeds as a biosorbent in an on-line system coupled to FAAS. Talanta. 80, 1133 - 1138. DOI: 10.1016/j.talanta.2009.08.040.[WoS][Crossref]
• Gonzalez, M. H., Araújo, G. C. L., Pelizaro, C. B., Menezes, E. A., Lemos, S. G., Souza, G. B., Nogueira, A. R. A. (2008). Coconut coir as biosorbent for Cr(VI) removal from laboratory wastewater. J. Hazard. Mater. 159, 252 - 256. DOI: 10.1016/j.jhazmat.2008.02.014.[WoS][Crossref]
• Castro, G. R., Cristante, V. M., Padilha, C. C. F., Jorge, S. M. A., Florentino, A. O., Prado, A. G. S. & Padilha, P. M. (2008). Determination of Cd(II), Cu(II) and Ni(II) in aqueous samples by ICP-OES after on-line pre-concentration in column packed with silica modified with 2-aminothiazole. Microchim. Acta. 160, 203 - 209. DOI: 10.1007/s00604-007-0845-5.[Crossref]
• Evangelista, S. M., Oliveira, E., Castro, G. R., Zara, L. F. & Prado, A. G. S. (2007). Hexagonal mesoporous silica modified with 2-mercaptothiazoline for removing mercury from water solution. Surf. Sci. 601, 2194 - 2202. DOI: 10.1016/j.susc.2007.03.020.[WoS][Crossref]
• Alcântara, I. L., Roldan, P. S., Margionte, M. A. L., Castro, G. R., Padilla, C. C. F., Florentino, A. O. & Padilla, P. M. (2004). Determination of Cu, Ni, and Pb in aqueous medium by FAAS after preconcentration on 2-aminothiazole modified silica gel. J. Brazil. Chem. Soc. 15, 366 - 371. DOI: 10.1590/S0103-50532004000300005.[Crossref]
• Ngeontae, W., Aeungmaitrepirom, W. & Tuntulani, T. (2007). Chemically modified silica gel with aminothioamidoanthraquinone for solid phase extraction and pre-concentration of Pb(II), Cu(II), Ni(II), Co(II) and Cd(II). Talanta. 71, 1075 - 1082. OI:10.1016/j.talanta.2006.05.094.[WoS]
• Ngeontae, W., Aeungmaitrepirom, W., Tuntulani, T. & Imyim, A. (2009). Highly selective preconcentration of Cu(II) from seawater and water samples using amidoamidoxime silica. Talanta. 78, 1004 - 1010. DOI: 10.1016/j.talanta.2009.01.017.[WoS][Crossref]
• Brunauer, S., Emmett, P. H. & Teller, E. (1938). Adsorption of gases in multi-molecular layers. J. Am. Chem. Soc. 60, 309 - 319. DOI: 10.1021/ja01269a023.[Crossref]
• Tarley, C. R. T., Ferreira, S. L. C. & Zezzi, M. A. (2004). Use of modified rice husks as a natural adsorbent of trace metals: characterization and development of an on-line preconcentration system for cadmium and lead determination by FAAS. Microchem. J. 77, 163 - 175. DOI: 10.1016/j.microc.2004.02.019.[Crossref]
• Seyhan, S., Colak, M., Merdivan, M. & Demirel, N. (2007). Solid phase extractive pre-concentration of trace metals using p-tert-butylcalix[4]arene-1,2-crown-4-anchored chloromethylated polymeric resin beads. Anal. Chim. Acta, 584, 462 - 468. DOI: 10.1016/j.aca.2006.11.068.[WoS][Crossref]
• Pearson, G. R. (1963). Hard and softs acids and bases. J. Am. Chem. Soc. 85, 3533 - 3539. DOI: 10.1021/ja00905a001.[Crossref]

Identifiers

DOI

10.2478/v10026-010-0002-5