Perkin-Elmer 2380 atomic absorption spectrometer was used
for the determination of lead using a flame type air/acetylene,
while FT-IR spectra were obtained by Perkin Elmer 1000 with
a resolution of 4 for the chemical identification of reactants
and products. Philips 1390 X-ray powder diffractometer
was used for structural identification and Quantachrome
Corporation Autosorb-1-C/MS was used for BET surface area
determination.