کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
74565 49095 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Immobilizing glycopyranose on mesoporous silica via “click-chemistry” for borate adsorption
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Immobilizing glycopyranose on mesoporous silica via “click-chemistry” for borate adsorption
چکیده انگلیسی

Mesoporous silica materials carrying organic modifications show promising properties for their potential use in chromatography, drug delivery or catalytic applications. In this work, we highlight the possibility of specifically removing borate ions from aqueous solution by sugar-functionalized pores of MCM-41-type mesoporous silica. In order to achieve this functionalization, a click-chemistry approach was applied. The azide-functionalized carbohydrate glycopyranose was covalently attached to the acetylene-functionalized pores of mesoporous silica by using the copper-(I)-catalyzed azide–alkyne cycloaddition. The covalent binding of the sugar to the silica surface was confirmed with solid state NMR, Raman- and infrared spectroscopies. The stepwise changes in pore volume derived from nitrogen sorption experiments are consistent with the successive filling of the pore volume with the functional groups and the sugar moieties. Additionally, thermogravimetric analysis is used to determine the amount of bound sugar molecules. The glycopyranose-grafted mesoporous silica showed a significant adsorption of borate from aqueous solution.

Figure optionsDownload as PowerPoint slideResearch highlights
► Glycopyranose-functionalized MCM-41-type mesoporous silica synthesized by click-chemistry approach.
► Azide-functionalized carbohydrate glycopyranose covalently attached to acetylene-functionalized pores of mesoporous silica by copper-(I)-catalyzed azide–alkyne cycloaddition.
► Glycopyranose-grafted mesoporous silica showed significant adsorption of borate from aqueous solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 147, Issue 1, January 2012, Pages 5–9
نویسندگان
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