Natural Clinoptilolite and Chabazite as Carrier for Antibacterial Agents of Cetylpyridinium Chloride (CPC) and Silver
Natural clinoptilolite (Cli) and chabazite (Cha) were used as the carrier for two types of antibacterial agents: cetylpyridinium chloride (CPC) and silver cations (Ag). CPC-zeolites, Ag-zeolites and CPC-Ag-zeolites were characterized by Energy Dispersive X-ray (EDX) analyzer and Fourier Transform Infrared (FTIR) spectroscopy and proved the attachment of CPC molecules on Ag-zeolite in CPC-Ag-zeolite samples. The determination of Minimum Inhibition Concentration (MIC) against P. aeruginosa and B. subtilis in saline solution and distilled water was performed to observe the effect of chloride ions on the antibacterial activity of the studied samples. From the MIC values, a new modified zeolite with CPC and Ag (CPC-Ag-zeolites) showed better antibacterial activity compared to that of CPC-zeolites and Ag-zeolites and performed well in both saline solution and distilled water.