Document Detail


Silica-titania sol-gel hybrid materials: synthesis, characterization and potential application in solid phase extraction.
MedLine Citation:
PMID:  18968995     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The biphenilaminepropylsilica and biphenilaminepropylsilicatitania were synthesized by sol-gel method, in two steps: (a) biphenylamine reacts with chloropropyltrimethoxysilane and (b) the product of reaction was polycondensed with tetraethylorthosilicate (TEOS) or TEOS and titanium isopropoxide. The sol-gel materials were characterized using infrared spectroscopy and N(2) adsorption-desorption isotherms and they were employed as sorbents for carcinogenic N-containing compound retention, in aqueous solution, using the SPE technique. The N-containing compounds adsorption was influenced by the titania presence and the sorption process seems to happen in the pores with higher organic density.
Authors:
Sandra V M de Moraes; Joana B Passos; Patricia Schossler; Elina B Caramão; Celso C Moro; Tania M H Costa; Edilson V Benvenutti
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Talanta     Volume:  59     ISSN:  1873-3573     ISO Abbreviation:  Talanta     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2008-10-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2984816R     Medline TA:  Talanta     Country:  England    
Other Details:
Languages:  eng     Pagination:  1039-44     Citation Subset:  -    
Affiliation:
Laboratório de Sólidos e Superficies, Instituto de Quimica, UFRGS, Porto Alegre, RS, Brazil.
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