Preparation of Functionalized Monolayer on Mesoporous Titanosilicate Molecular Sieve and Removal of Lead in Water

Abstract

Abstract: 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, ¹³C and ²⁹Si solid-state NMR spec-troscopy 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 con-ditions for obtaining reproducible monolayer has been established. It is found that the optimum organic solvent, polymerization temperature and time are toluene, 110 ℃ and 24 h, re-spectively. 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.

Key words: Ti-MCM-41, Self-assembly, Functionalized monolayer, Thioacetate sodium, Removal of lead

CLC Number:

O647.31

TrendMD:

XU Ying-Ming, WANG Rong-Shu . Preparation of Functionalized Monolayer on Mesoporous Titanosilicate Molecular Sieve and Removal of Lead in Water[J]. Chem. J. Chinese Universities, 1999, 20(7): 1002.

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Preparation of Functionalized Monolayer on Mesoporous Titanosilicate Molecular Sieve and Removal of Lead in Water

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