Different interactions of gaseous CH3I with both Ag nanoparticles and Ag+ ions included in mercaptopropyl functionalized silica gels

Mercaptopropyl functionalized silica gels were prepared and interacted with Ag0 nanoparticles and Ag+ ions. After that, these gels were all exposed to gaseous CH3I. To investigate the silver oxidation states and interactions with the surrounding gels, peak shifts were observed using X-ray photoelectron spectroscopy. The cleavage of mercaptopropyl during the electron-beam irradiation applied for Ag0 nanoparticle production was also discussed. The...