Abstract:
Silver ion-exchanged nanocrystalline ZSM-5 (Ag-Nano-ZSM-5) and ZSM-5 (Ag-ZSM-5) materials were
synthesized. Hydroxyapatite supported on zeolite materials were prepared by incubating the Ag ionexchanged
zeolite materials in simulated body fluid at 310 K. The resultant materials were characterized
using X-ray diffraction, N2-adsorption and Scanning/Transmission electron microscopy. Hydroxyapatite
supported on Ag ion-exchanged zeolite modified glassy carbon electrodes were fabricated and investigated
as electrochemical sensors in the detection of toxic heavy metal ions (Cd2+, Pb2+, As3+, and Hg2+). The
results show that the developed sensor exhibited excellent electro-catalytic activity, sensitivity, and stability
toward the detection of selected heavy metal ions. The analytical application of the developed sensor is
shown in the determination of heavy metal ions found in different water bodies.
