International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Hydrothermal Synthesis and Characterization of Zeolite: Effect of Crystallization Temperature

Author Affiliations

  • 1Institute of Information Technology and Management, Gwalior-474001, INDIA
  • 2School of Studies in Chemistry, Jiwaji University, Gwalior, INDIA
  • 3Dept of Physics, RGPV, Bhopal, INDIA
  • 4Dept of Physics, ITM University, Gwalior, INDIA
  • 5Dept. of Applied Physics, IIITM, Gwalior, INDIA

Res.J.chem.sci., Volume 3, Issue (9), Pages 1-4, September,18 (2013)

Abstract

The synthesis and characterization of zeolites designed for the removal of pesticide, radioactive waste and as slow release fertilizer is described. The zeolites were hydro thermally synthesized by varying the concentrations of Si and Al at different crystallization temperature between 75C to 150C. Different instrumental techniques viz. X-ray diffraction, FTIR, SEM, EDS, TEM and TGA were used to characterize the product obtained at different synthesis parameters. The broad and sharp peaks obtained in diffractogram shows the amorphous and crystalline nature of the materials respectively. The composition of SZM was found approximately close to the concentrations of the precursors taken during synthesis. The FTIR spectra of these zeolites in framework vibration region also shows sharp feature for zeolites in the 500-650cm-1. High crystalline nature of the material is reveals by the absorption bands at 520-570 cm--1 The synthesized zeolites were used for the sorption studies for malathion, Pd(II), Ru(III) and plant nutrient Nitrate.

References

  1. Breck D.W., Zeolite Molecular Sieves, Chemistry and Use; Wiley: New York, USA, (1974)
  2. Camblor M. A., Corma A. and Valencia S., Synthesis in fluoride media and characterisation of aluminosilicate zeolite beta, J. Mater. Chem.,, 2137-2145 (1998)
  3. Flanigen E.M., Khatami H., Seymenski H.A., Adv. Chemistry Series 101, in: E.M. Flanigen, L.B. Sand (Eds.), American Chemical Society, Washington, DC, 201228 (1971)
  4. Mintova S., Valtchev V., Onfroy T., Marichal C., Knozinger H., and Bein T., Variation of the Si/Al ratio in nanosized zeolite Beta crystals, Micropor. Mesopor. Mater., 90, 237-245 (2006)
  5. Poe B.T., Mc.Millal P.F.M., Angell C.A. and Sato R.K., Al and Si coordination in SiO1bAl glasses and liquids: A study by NMR and IR spectroscopy and MD simulations, Chem. Geol., 96, 333-349 (1992)
  6. Tarte P., Infra-red spectra of inorganic aluminates and characteristic vibrational frequencies of AlO tetrahedra and AlO octahedra, Spectro. Chim. Acta.,23(A), 2127-2143 (1967)
  7. Farmer V.C, Fraser A.R. and Tait J.M., Characterization of the chemical structures of natural and synthetic aluminosilicate gels and sols by infrared spectroscopy, Geochim. Cosmochim. Acta., 43, 1417-1420 (1979)
  8. Prasad P.S.R. and Prasad K.S., Dehydration and rehydration of mesolite: An in situ FTIR study, Micropor.Mesopor. Mater., 100, 287-294 (2007)
  9. Mozgawa W., The relation between structure and vibrational spectra of natural zeolites, J. Mol. Struct., 596, 129-137 (2001)