The effect of electron irradiation on the optical properties of the natural armenian zeolite-clinoptilolite

• Authors: Hrant Yeritsyan , Vachagan Harutiunian , Volodia Gevorkyan , Norair Grigoryan , Eleonora Hakhverdyan , Sergey Nikoghosyan , Aram Sahakyan , Rudolf Gevorgyan , Hakob Sargisyan , Yeghis Keheyan
• Languages of publication: EN

Abstracts

EN

Infrared (IR) absorption and luminescence in chemically and radiation-modified natural Armenian Zeolite (clinoptilolite) samples have been studied. The luminescence was studied in 390–450 nm and 620–710 nm wavelength bands, and the IR measurements were carried out in the 400–5400 cm−1 range. It is shown that the luminescence intensity depends on the content of pure clinoptilolite in the samples and, probably on the distribution of “passive” luminescence centers over Si and Al sites that became “active” under radiation or chemical treatment. The samples of electron irradiated clinoptilolite have higher luminescence intensity than the chemically and thermally treated ones. A decrease in the intensity of IR absorption bands at 3550 cm−1 and 3650 cm−1 was found after irradiation.

Keywords

EN

Zeolite; clinoptilolite; infrared absorption; luminescence; irradiation; PACS (2003); z82.75.Mj

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2005
• Volume: 3
• Issue: 4
• Pages: 623-635

Dates

published

1 - 12 - 2005

online

1 - 12 - 2005

Contributors

author

Hrant Yeritsyan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Vachagan Harutiunian

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Volodia Gevorkyan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Norair Grigoryan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Eleonora Hakhverdyan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Sergey Nikoghosyan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Aram Sahakyan

• Yerevan Physics Institute, 2 Alikhanian Bros. str., 375036, Yerevan, Armenia

author

Rudolf Gevorgyan

• Yerevan State University, 1 Aleck Manoukyan str., 375049, Yerevan, Armenia

author

Hakob Sargisyan

• Yerevan State University, 1 Aleck Manoukyan str., 375049, Yerevan, Armenia

author

Yeghis Keheyan

• Istituto per lo studio dei Materiali Nanostruttutturati Dipartimento di Chimica Roma 1, Piazzale Aldo Moro, 5-00185, CNR, Roma, Italy

References

• [1] D.W. Breck:Zeolite Molecular Sieves: Structure, Chemistry and Use, Wiley, New York, 1974.
• [2] T. Yamasaki, H. Nishimura and S. Ozawa: “Adsorption behavior of some gas molecules in−zeolite pores”, Microporous and Mesoporous Materials, Vol. 38, (2000), pp. 187–196. http://dx.doi.org/10.1016/S1387-1811(99)00303-0[Crossref]
• [3] J. Lourenco, M. Ribeiro, C. Borges, J. Rocha et al.: “Synthesis and characterization of new CoAPSO-40 and ZnAPSO-40 molecular sieves. Influence of the composition on the thermal and hydrothermal stability of AlPO4-40 based materials”, Microporous and Mesoporous Materials, (2000), pp. 267–278.
• [4] H.N. Yeritsyan:Doctor of science Dissertation, Yerevan Physics Institute, Yerevan, Armenia, 1995 (in Russian).
• [5] V.S. Vavilov:The influence of irradiation on the Semiconductors, Phys.-mat., Moscow, 1963 (in Russian).
• [6] I.D. Konozenko, A. Semeniuk and V. Chivrich:Radiation effects in silicon, Naukovo dumka, Kiev, 1974 (in Russian).
• [7] S.E. Ermatov, T.I. Aksenova, A. Tuleuova and T.S. Kosherov: “Adsorption of gases and vapors on the surface of irradiated zeolite”, J. Phys. Chem., Vol. 54, (1980), pp. 2524–2529.
• [8] S.E. Ermatov, T.A. Mosienko and R. Orozbaev: “Stady of surface interactions and structure of irradiated zeolite”, J. of Phys. Chem., Vol. 54 (10), (1980), pp. 2520–2527.
• [9] G.V. Tsitsishvili, T.G. Andronikashvili, G.N. Kirov and L.D. Filazhova:Natural Zeolites, Chemistry, Moscow, 1985 (in Russian).
• [10] F. Jacomi and A. Vasile: “Physical characterization of some MnS clusters encapsulated in natural zeolites”, In: Proc. 13th International Zeolite Conference, Montpellier, France 2001, University Pierre and Marie Curie, Cedex, France, 2001, pp. 14-R-01.
• [11] H. Nashido, M. Jkenada and K. Ninagawa: “Cathodoluminescence of natural zeolites”, In:Proc. 13 th International Zeolite Conference, Montpellier, France 2001, University Pierre and Marie Curie, Cedex, France, 2001, pp. 01-R-02.
• [12] Y. Brik, M. Kacimi, F. Bozon-Verduraz and M. Ziyad: “Characterization of active sites on AgHf2(PO4) in butan-2-ol conversion”, Microporous and Mesoporous Materials, Vol. 43, (2001), pp. 103–112. http://dx.doi.org/10.1016/S1387-1811(00)00353-X[Crossref]
• [13] H. Yamashita, K. Ykeue, K. Kida, Y. Kanazawa and M. Anpo: “Photoepoxidation of propene with Molecular oxygen on Ti-zeolites and their modifications by a metal ion-implantation”, In:Proc. 13 th International Zeolite Conference, Montpellier, France 2001, University Pierre and Marie Curie, Cedex, France, 2001, pp. 23-R-04.
• [14] M. Anpo and S. Higashimoto: “The local structure of transition metal oxide in incorporated in zeolites and their unique photocatalytic properties”, Studies in Surface Science and Catalysis, Vol. 135, (2001), pp. 123–129. http://dx.doi.org/10.1016/S0167-2991(01)81192-7[Crossref]
• [15] A. Rivera, G. Rodriguez-Fuentes and E. Altshuler: “Time evolution of a natural clinoptilolite in aqueous medium: conductivity and RpH experiments”, Microporous and Mesoporous Materials, Vol. 40, (2000), pp. 173–179. http://dx.doi.org/10.1016/S1387-1811(00)00257-2[Crossref]
• [16] R. Gevorkyan, H. Yeritsyan, Y. Keheyan, H. Sarkisyan, A. Sahakyan and A. Hovhannisyan: “Zeolite Modification and Application Study for Decontamination Nuclear Liquid Waster (part 1)”, In:Proc. 13 th Inter. Zeolite Conf., Montpellier, July 8–13 2001, pp. 31-R-09.
• [17] Y. Keheyan, C. Presutti, G. Christidas, D. Moraetis, N. Kekelidze, L. Akhalbeldashvili, R. Gevorkyan, H. Sarkisyan and H. Yeritsyan: “Zeolite modification and application study for decontamination of nuclear liquid waste (part 2)”, In:Proc. 13 th International Zeolite Conference, Montpellier, France 2000, pp. 31-R-10.
• [18] C. Lamberti, S. Bordiga and D. Arduino: “Evidence of the presence of two different framework Ti(IY) species in Ti-Silicate-1 in vacuum conditions”, J. Phys. Chem. B, Vol. 102, (1998), pp. 6382–6388. http://dx.doi.org/10.1021/jp981225n[Crossref]

Identifiers

DOI

10.2478/BF02475617