Synthesis and Characterization of KFeP2O7 Nanoparticles Implanted in Silica

DOI: 10.4236/ajac.2012.38068   PDF   HTML     3,252 Downloads   5,279 Views   Citations

Abstract

Rivers and aquifers are increasingly affected worldwide by the action of agro-industrial pollution. Facing this challenge, nanoparticles have found a wide range of applications in the decontamination and remediation of water, given the characteristics which make them highly reactive to specific substances. One of the simplest ways of gaining access to these particles is through their synthesis over a sufficiently rigid matrix of manageable size. This report describes the synthesis and characterization of nanoparticles of iron and potassium diphosphate (KFeP2O7) synthesized on silica gel beads (SiO2). Analysis by X-ray diffraction (XRD), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) have been applied in order to determine the mineral phases and morphology of the synthesized compounds. Complementary tests were conducted so as to determine surface characteristics such as specific area by the BET method and point of zero charge (pHpzc) by mass titration. The acid-base titration enabled to determine the adsorptive nature of nanoparticles and their response to a pH range from 1 to 12.

Share and Cite:

E. Regil, E. Regil, N. González and S. Barocio, "Synthesis and Characterization of KFeP2O7 Nanoparticles Implanted in Silica," American Journal of Analytical Chemistry, Vol. 3 No. 8, 2012, pp. 512-517. doi: 10.4236/ajac.2012.38068.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] J. González, “Evaluation of the Impact of Climatic Change on the Economic Value of Land in Agricultural,” Journal of Agricultural Research, Vol. 68, 2007, pp. 56-68.
[2] S. M. Rob-inson and J. R. Parrott Jr., “Pilot-Scale Demonstration of Pro-cess Wastewater Decontamination Using Chabazite Zeolites,” Technical Report, 1989, ORNL/ TM-10836.
[3] I. De la Ro-sa-Gómez, M. T. Olguín and D. Alcántara, “Silver-Modified Mexican Clinoptilolite-Rich Tuffs with Various Particle Sizes as Antimicrobial Agents against Escherichia coli,” Journal of the Mexican Chemical Society, Vol. 54, No. 3, 2010, pp. 139-142.
[4] F. Granados-Correa, N. G. Corral-Capulin, M. T. Olguin and C. A. Acosta-Leon, “Comparison of the Cd(II) Adsoption Process between Boehmite (γ-AlOOH) and Goethite (α-FeOOH),” Chemical Engineering Journal, Vol. 171, No. 3, 2011, pp. 1027-1034. Hdoi:10.1016/j.cej.2011.04.055
[5] F. Granados-Correa and J. Serrano-Gomez, “Removal of Chromium Hexavalentions from Aqueous Solution by Retention onto Iron Phosphate,” Journal of the Chilean Chemical Society, Vol. 3, 2010, pp. 283-287.
[6] J. Kreuter, “Nanoparticles—A Historical Perspective,” Interna-tional Journal of Pharmaceutics, Vol. 331, 2007, pp. 1-10.
[7] R. Barrena, E. Casals, J. Colón, X. Font, A. Sánchez and V. Puntes, “Evaluation of the Ecotoxicity of Model Nanoparticles,” Chemosphere, Vol. 75, No. 7, 2009, pp. 850-857. Hdoi:10.1016/j.chemosphere.2009.01.078
[8] T. Mathialagan and T. Viraraghavan, “Adsorption of Cadmium from Aqueous Solutions by Vermiculite,” Separation Science and Technology, Vol. 38, No. 1, 2003, pp. 57-76. Hdoi:10.1081/SS-120016698
[9] K. Sasakia, H. Nakano, W. Wilopo, Y. Miura and T. Hirajima, “Sorption and Speciation of Arsenic by Zero-Valent Iron,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 347, No. 1-3, 2009, pp. 8-17. Hdoi:10.1016/j.colsurfa.2008.10.033
[10] A. S. de Dios and M. E. Díaz-García, “Multifunctional Nanoparticles: Analytical Prospects,” Analytica Chimica Acta, Vol. 666, No. 1-2, 2010, pp. 1-22. Hdoi:10.1016/j.aca.2010.03.038
[11] B. F. Alfonso, J. A. Blanco, M. T. Fernández-Díaz, C. Trobajo , S. A. Khainakov and J. R. García, “On the Crystal Structure and Thermal Decomposition of Ammonium-Iron(III) Bis (Hydrogenphosphate),” Dalton Transactions, Vol. 39, No. 7, 2010, pp. 1791-1796. Hdoi:10.1039/b912427f
[12] J.-W. Huang, P. Su, W.-W. Wu and X.-H. Wu, “Preparation and Characterization of Nanocrystalline KFeP2O7 via Solid-State Reaction at Low Heat,” Applied Chemical Industry, Vol. 40, 2011.
[13] J. S. Noh and J. A. Schwartz, “Estimation of the Point of Zero Charge [pzc] of Simple Oxides by Mass Titration,” Journal of Colloid and Interface Science, Vol. 130, No. 1, 1989, pp. 157-164. Hdoi:10.1016/0021-9797(89)90086-6
[14] L. C. Bell, A. M. Posner and J. B. Quirk, “The Point of Zero Charge of Hydroxyapatite and Fluorapatite in Aqueous Solutions,” Journal of Colloid and Interface Science, Vol. 42, No. 2, 1973, pp. 250-256. Hdoi:10.1016/0021-9797(73)90288-9
[15] M. Gabelica-Robert, M. Goreaud, Ph. Labbe and B. Raveau, “The Pyrophosphate NaFeP2O7: A Cage Structure,” Journal of Solid State Chemistry, Vol. 45, No. 3, 1982, pp. 389-395. Hdoi:10.1016/0022-4596(82)90184-0
[16] D. Riou, P. Labbe and M. Goreaud, “The Diphosphate KFeP2O7: Structure and Possibilities for Insertion in the Host Framework,” Revue Chimie Minérale, Vol. 25, No. 2, 1988, pp. 215-229.

  
comments powered by Disqus

Copyright © 2020 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.