TY - JOUR
T1 - Characterization of natural and modified zeolites using ion beam analysis techniques
AU - Andrade, E.
AU - Solis, C.
AU - Aceves, J. M.
AU - Miranda, R.
AU - Cruz, J.
AU - Rocha, M. F.
AU - Zavala, E. P.
N1 - Funding Information:
The authors wish to thank Dr. C.R. Magaña, A. Huerta, K. López and F. Jaimes for technical support. We also appreciate Dr. Pedro Bosch for useful discussion of this paper. We acknowledge the financial support from DGAPA-UNAM IN227807 and DGAPA-PAPITT IN215505.
PY - 2008/5
Y1 - 2008/5
N2 - Zeolites are very important materials in catalytic and industrial processes. Natural, modified and synthetic zeolites have a wide range of uses because of their good adsorption, ion exchange capacity and catalytic properties. Mexico is an import source of natural zeolites, however their utilization in the natural form is limited due to the presence of trace metallic impurities. For example, metals such as vanadium and chromium inhibit the elimination of sulfur in hydrocarbons. Therefore, it is important to know the precise composition of the zeolite material. In this work, we report the elemental characterization of zeolites using various IBA techniques. 3He+ and 2H+ beams were used to measure the major element concentrations (Si, Al, O, C) by RBS and NRA. PIXE and SEM-EDS were used to measure the total trace element content (V, Cr, Fe, Ni, Cu, Zn, Rb, Sr, Zr, Pb, etc). Additionally, XRD was used to study the zeolite crystal structure.
AB - Zeolites are very important materials in catalytic and industrial processes. Natural, modified and synthetic zeolites have a wide range of uses because of their good adsorption, ion exchange capacity and catalytic properties. Mexico is an import source of natural zeolites, however their utilization in the natural form is limited due to the presence of trace metallic impurities. For example, metals such as vanadium and chromium inhibit the elimination of sulfur in hydrocarbons. Therefore, it is important to know the precise composition of the zeolite material. In this work, we report the elemental characterization of zeolites using various IBA techniques. 3He+ and 2H+ beams were used to measure the major element concentrations (Si, Al, O, C) by RBS and NRA. PIXE and SEM-EDS were used to measure the total trace element content (V, Cr, Fe, Ni, Cu, Zn, Rb, Sr, Zr, Pb, etc). Additionally, XRD was used to study the zeolite crystal structure.
KW - Modified zeolite
KW - NRA
KW - Natural zeolite
KW - PIXE
KW - RBS
KW - SEM-EDS
KW - Spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=44649093194&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2008.03.078
DO - 10.1016/j.nimb.2008.03.078
M3 - Artículo
SN - 0168-583X
VL - 266
SP - 2379
EP - 2382
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 10
ER -