Preparation of functionalized monolayer on mesoporous titanosilicate molecular sieve and removal of lead in water

Organofunctional silane monolayer has been prepared on the surface of Ti-MCM-41, Methods, such as X-ray diffraction, Fourier transform infrared spectroscopy, elemental analysis, thermogravimetric analysis, X-ray fluorescence, C-13 and Si-29 solid-state NMR spectroscopy have been used for qualitative characterization of this monolayer, Other method, such as contact angle has been used for studying the wettability of this monolayer, The conditions for obtaining reproducible monolayer has been established. It is found that the optimum organic solvent, polymerization temperature and time are toluene, 110 degrees C and 24 h, respectively. The experimental results showed that it was an effective adsorbent for Pb2+ ions, but was less effective toward Zn2+, Cd2+, Cu2+, Mg2+ and Na+ ions.