Authors:
Luiza N. H. Arakaki Departamento de Química, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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V. H. A. Pinto Departamento de Química, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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V. L. S. Augusto Filha Departamento de Química, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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M. G. Fonseca Departamento de Química, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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J. G. P. Espínola Departamento de Química, Centro de Ciências Exatas e da Natureza, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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Tomaz Arakaki Departamento Engenharia de Alimentos, Centro de Tecnologia, Universidade Federal da Paraíba, 58051-900, João Pessoa, Paraíba, Brazil

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Claudio Airoldi Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13083-970, Campinas, São Paulo, Brazil

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Abstract

A new material containing a potential ligand for transition metals was prepared through the reaction of 3-aminopropyltrimethoxysilane and thioglycolic acid. The new adsorbent was characterized by elemental analyses, infrared spectroscopy, solid-state 13C nuclear magnetic resonance, thermogravimetric analysis, transmission electron microscopy, and specific surface area calculations. The formulated material was used in the removal of cobalt, copper, and nickel cations from aqueous solutions. Calorimetric titration was applied to study the interaction of these cations with the new adsorbent; the latter displayed a chelating moiety with basic centers containing nitrogen, oxygen, and several sulfur atoms, capable of capturing cations from aqueous solutions. This process of extraction was carried out by a batch method to yield the following order of maximum retention capacity: Ni > Co > Cu. The process of cation interactions showed exothermic enthalpies. The calculated ΔG values are in agreement with the spontaneity of the proposed reactions and conformed to the values found by applying the Langmuir model to these systems. The positive entropy and negative enthalpy values indicated that the reactions are favorable.

  • 1. Augusto Filha, VLS, Silva, OG, Costa, JR, Wanderley, AF, Fonseca, MG, Arakaki, LNH. Interaction of divalent cations Zn, Cd and Hg on surface of silica gel with aminoethanethiol as evaluated by calorimetric titration. J Therm Anal Calorim 2007 87:621625 .

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  • 2. Unob, F, Wongsiri, B, Phaeon, N, Puanngam, M, Shiowatana, J. Reuse of waste silica as adsorbent for metal removal by iron oxide. J Hazard Mater 2007 142:455462 .

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  • 3. Matsumoto, T, Ueno, M, Wang, N, Kobayashi, S. Recent Advances in immobilized metal catalysts for environmentally benign oxidation of alcohols. Chem Asian J. 2008 3:196214 .

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  • 4. Zhong, H, Zhu, G, Wang, P, Liu, J, Uang, J, Yang, Q. Direct synthesis of hierarchical monolithic silica for high performance liquid chromatography. J Chromatogr A 2008 1190:232240 .

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  • 5. Lei, G, Xiong, X, Wei, Y, Zheng, X, Zheing, J. Novel tetrazole-functionalized ion exchanger for weak cation-exchange chromatography of proteins. J Chromatogr A 2008 1187:197204 .

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  • 6. Airoldi, C, Farias, RF. O uso de silica gel organofuncionalizada como agente sequestrante para metais. Quim Nova 2000 23 4 496503.

  • 7. Kocaoba, S. Adsorption of Cd(II), Cr(III), and Mn(II) on natural sepiolite. Desalination.. 2009;244:2430 .

  • 8. Liu, H, Sha, W, Cooper, AT, Fan, M. The effect of stabilizer addition and sonication on nanoparticle agglomeration in a confined impinging jet reactor. Colloids Surf A Physicochem Eng Aspects 2009 343:3850 .

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  • 9. Arakaki, LNH, Espílola, JGP, Oliveira, SF. Calorimetric study of silica gel modified with thioglycolic acid with divalent cations from aqueous solution. Curr Top Colloid Interface Sci 2002 4:210225.

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  • 10. Arakaki, LNH, Espínola, JGP, Fonseca, MG, Oliveira, SF, Sousa, AN, Arakaki, T, Airoldi, C. Thioglycolic acid grafted onto silica gel and its properties in relation to extracting cations from ethanolic solution determined by calorimetric technique. J Colloid Interface Sci 2004 273:211217 .

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  • 11. Sousa, KS, Augusto Filha, VLS, Pinto, VHA, Fonseca, MG, Espínola, JGP, Arakaki, LNH. Quimissorção de cátions divalentes em sílica gel modificada com ácido tioglicólico—A influência do pH e força iônica. Quim Nova 2007 30:528534.

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  • 12. RSA Machado Jr 2004 Fonseca, MG, Arakaki, LNH, Espínola, JGP, Oliveira, SF. Silica gel containing sulfur, nitrogen and oxygen as adsorbent centers onsurface for removing copper from aqueous/ethanolic solutions. Talanta 63:317322 .

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  • 13. Silva, ALP, Sousa, KS, Germano, AFS, Oliveira, VV, Espínola, JGP, Fonseca, MG, Airoldi, C, Arakaki, T, Arakaki, LNH. A new organofunctionalized sílica containning thioglycolic acid incorporated for divalent cátions removal—A thermodynamic cátion/basic center interaction. Colloids Surf A Physicochem Eng Aspects. 2009 332:144149 .

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  • 14. Soliman, EM, Mahmeud, ME, Ahmed, SA. Reactivity of thioglycolic acid physically and chemically bound to silica gel as new selective solid phase extractors for removal of heavy metal ions from natural water samples. Int J Environ Anal Chem 2002 82 6 403413 .

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  • 15. Arakaki, LNH, Alves, APM, Silva Filho, EC, Fonseca, MG, Oliveira, SF, Espínola, JGP, Airoldi, C. Sequestration of Cu(II), Ni(II), and Co(II) by ethyleneimine immobilized on silica. Thermochim Acta 2007 453:7274 .

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  • 16. Sales, JAA, Prado, AGS, Airoldi, C. Interaction of divalent copper with two diaminealkyl hexagonal mesoporous silicas evaluated by adsorption and thermochemical data. Surface Sci 2005 590:5162 .

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  • 17. Lin-Vien D , Colthup NB, Fateley WG, Grasselli JG. The handbook of infrared and Raman characteristic frequencies of organic molecules. London: Academic Press; 1991. p. 160.

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  • 18. Brunauer, S, Emett, P, Teller, E. Adsorption of gases in multimolecular layers. J Am Chem Soc 1938 60:309319 .

  • 19. Silva, CR, Airoldi, C. Acid and base catalysts in the hybrid silica sol–gel process. J Colloid Interface Sci 1997 195:381387 .

  • 20. Arakaki, LNH, Diniz, JS, Silva, ALP, Augusto Filha, VLS, Fonseca, MG, Espínola, JGP, Arakaki, T. Thermal study of chelates of Co(II), Cu(II), Ni(II), Cr(III), Mo(III), and Fe(III) with bis(acetylacetone) ethylenediimine on activated silica gel surface. J Therm Anal Calorim 2009 97:377382 .

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  • 21. Airoldi, C, Arakaki, LNH. Immobilization of ethylenesulfide on silica surface through sol–gel process and some thermodynamic data of divalent cation interactions. Polyhedron 2001 20:929936 .

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  • 22. Airoldi, C, Arakaki, LNH. Two independent routes to synthesize identical sulicas by grafting ethylenimine or 2-aminoethanethiol, their cation adsorbing abilities, and thermodynamic data. J Colloid Interface Sci 2002 249:17 .

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  • 23. Smith, JM Chemical engineering kinetics 1981 3 McGraw-Hill New York 310322.

  • 24. Arakaki, LNH, Fonseca, MG, Espínola, JGP, Wanderley, AF, Martins, EPS, Arakaki, T, Airoldi, C. Immobilization of ethylenesulfide on silica surface using acid and base catalysts: adsorption and thermodynamic data. J Therm Anal Calorim 2009 97:383389 .

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  • 25. Fonseca, MG, Almeida, RKS, Wanderley, AF, Ferreira, UVS, Arakaki, LNH, Simoni, JA, Airoldi, C. Vermiculite-aliphatic amine interactions at the solid/liquid interface: a thermodynamic approach. J Therm Anal Calorim 2009 97:453457 .

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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