(DFT) method as illustrated in Fig. 1. Result detected intensive
peaks at pore diameter between 2 and 4.5 nm, associated with
the presence of mesoporous structures.
The surface morphology of BFAC was visualized via scanning
electron microscopy (SEM), with a magnification of 1000 as
shown in Fig. 2. Examination of the SEM micrograph identified
the presence of well organized, pronounced and uniform cavities
distributed around the surface, indicating good possibility for the
metal ions to be adsorbed. This observation was supported by
the physical parameters as summarized in Table 2. Table 3 displays
the representative FTIR spectra of BFAC. The transmittance at
3247 cm1 is associated with the in-plane OAH (hydroxyl) group.
The region between 2364 and 2348 cm1 is related to the ACOOH
(carboxylic) dimmer. The signal at 1998 cm1 is assigned to the
AC„N derivatives. The sharp peak at 1425 cm1 is attributed to