ADSORPTION OF BORIC-ACID TRIMETHYL ESTER ON SILICA SURFACE STUDIED BYFT-IR SPECTROSCOPY

Authors
LIU JK YING PL XIN Q LI C
Citation
Jk. Liu et al., ADSORPTION OF BORIC-ACID TRIMETHYL ESTER ON SILICA SURFACE STUDIED BYFT-IR SPECTROSCOPY, Applied surface science, 126(1-2), 1998, pp. 16-20
Citations number
16
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter","Chemistry Physical","Materials Science, Coatings & Films
Journal title
Applied surface science → ACNP
ISSN journal
01694332
Volume
126
Issue
1-2
Year of publication
1998
Pages
16 - 20
Database
ISI
SICI code
0169-4332(1998)126:1-2<16:AOBTEO>2.0.ZU;2-2
Abstract
Adsorption of boric acid trimethyl ester (BATE) on high-surface-area s ilica has been studied by FT-IR spectroscopy. It is found that surface hydroxyls remaining after outgassing at high temperatures act as weak basic sites for BATE adsorption. Coordinate interaction of BATE with isolated hydroxyls dominates the adsorption and induces two splitting B-O vibrational bands at 1375 and 1345 cm(-1). In addition, a small am ount of BATE reacts with hydrogen-bonded hydroxyls and strained oxygen generated after high-temperature dehydroxylation. (C) 1998 Elsevier S cience B.V.