Volume 25 , Issue 2 , December 2023 , Pages 81-93
1 Department of Chemistry, College of Science, Salahaddin University, Erbil, Kurdistan Region, Iraq
The objective of this study was to prepare zeolite ZSM-5 nanostructure from aluminum
foil drug sachet waste by a simple conventional hydrothermal method using different
times (24, 48, 72, and 96 h), and to figure out the adsorption capacity of zeolite ZSM-5
nanostructure for heavy metal of Fe(III) . The best time for synthesizing and testing the
adsorption effectiveness of the provided ZSM-5 zeolite is 96 h. The ZSM-5 zeolite is
defined by X-ray diffraction (XRD), Brunauer Emmett Teller (BET), Field Emission
Scanning Electron Microscopy (FESEM) and Fourier transform infrared spectroscopy
(FTIR) for confirming their structure and properties, such as crystal structure, surface
area, and surface morphology. The crystallinity percentage of nanosized ZSM-5 was
100%, and the surface area and micropore volume were 368.70 m2
/g and 0.158 cm3
/g,
respectively. In addition, the ZSM-5's adsorption efficiency the solution for Fe(III) was
tested. Many factors, including adsorption properties, contact duration, initial iron
solution content, and pH, were investigated. The equilibrium was reached after 25
minutes. pH levels between 3.0 and 4.0 were shown to be optimal for the absorption of
iron solution. The iron species` adsorption capacities in solutions at 298 K were 56.49
mg/g, at 308 K, 86.20 mg/g, and at 318 K, 68.02 mg/g. The findings of the Freundlich
adsorptions and Langmuir were used to represent the isotherm constants. The Langmuir
model can adequately describe the Fe(III) solutions` adsorption isotherm data while
testing at 298K and 308K, whereas those of Fe(III) testing at 308K and 318K were more
closely connected to the Freundlich model.