Exploring of Potential Antibacterial Activity of Hypochlorite and Chloroamine Adsorbed Ammonium Functionalized Mesoporous SBA-15 Silica

Surface modified mesostructured silica materials represent potential adsorbents offer opportunity to remediate important bacteria from water pollutions. Water remediation process is a fundamental to eliminate micro-organisms. In this work, hypochlorite anions and monochloroamine molecules were successfully adsorbed onto stationary phase of ammonium cation functionalized SBA-15 adsorbents. The use of stationary phase of adsorbed of disinfected species (monochloroamine and hypochlorite species) instead of using the free species is of great important. These materials were tested against Escherichia coli cultures, and showed a significant antimbacterial activity. Ammonium cation functionalized SBA-15 mesoporous silica adsorbents were synthesized via post-synthesis method by grafting of mesoporous silica (SBA-15) with monoamine, diamine and triamine silane coupling agents, followed by protonation with HCl. These materials were characterized by several techniques including Fourier Transform Infrared Spectroscopy (FTIR), Ultraviolet–Visible spectroscopy (UV–Vis) and N2 adsorption–desorption isotherms to determine textural properties.