  The present research explores the effects of Percentage Fe incorporation on
the structure and antibacterial activity of Fe ZSM 5. Silica extracted from
local rice husk straw (white particles) by applying NaOH and HCl solutions for
consecutive chemical treatment was used for hydrothermal synthesis of FeZSM 5
with constant Si(Fe plus Al) ratios. The chemical and physical changes of ZSM 5
and Fe ZSM 5 surfaces were investigated by X ray diffraction analysis (XRD),
scanning electron microscopy (SEM), Fourier transform infrared spectroscopy
(FTIR), UV Vis spectroscopy, differential scanning calorimetry (DSC), and pore
structure analysis by N2 adsorption at 196 . XRD analysis revealed the typical
ZSM 5 structure with new diffraction lines attributed to the iron silicate
phase. FTIR spectral analysis of ZSM 5 samples containing iron display a new
band at 656 cm that is ascribed to the SiOFe group. The antibacterial activity
of such coatings towards different kinds of bacteria, such as S. pneumonia, B.
subtilis, E. coli and P. aeruginosa, and fungi, such as A. fumigatus and C.
albicans, for investigated ZSM 5 and Fe (20 and 100 percentages) samples showed
selective antibacterial actions.

Applied Physics