Open AccessAntibacterial Action and Efficacy of Silver and Copper Exchanged Na-Y Zeolite from Fly Ash on 304 Stainless Steel Coupons by Agar Diffusion Method
Author(s) -
Rashmi Rani Padhy,
Sangeeta Tiwari
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2021.23002
Subject(s) - zeolite , copper , chemistry , nuclear chemistry , antibacterial activity , escherichia coli , ion exchange , staphylococcus aureus , inorganic chemistry , bacteria , ion , organic chemistry , biochemistry , catalysis , biology , gene , genetics
Na-Y Zeolite synthesized from fly ash was exchanged with Ag+ and Cu2+ ions by ion exchange process.The antibacterial action and efficacy of silver and copper exchanged Na-Y zeolite on Escherichia coliand Staphylococcus aureus were investigated. Escherichia coli and Staphylococcus aureus wassuspended in broth media and exposed to silver and copper exchanged zeolite Y (ranging from 25-1000μg) for a period of 24 h. The minimum bactericidal concentration (MBC) of silver and copper loadedzeolite-Y powder was 50 and 250 μg for Escherichia coli. Staphylococcus aureus was destroyed at apowder concentration of 100 μg for both Ag-Y and Cu-Y zeolite. Further, the present work alsofocuses to incorporate 5% silver and copper exchanged zeolite pigment in coating and study theantibacterial effect on the coated 304 stainless coupons. Paint containing copper exchanged zeoliteshows antibacterial activity compared to paint with silver containing zeolite.