A meso-macroporous borosilicate monolith prepared by a sol-gel method

被引：12
作者：
Wang, Shao-Ting [1 ]
Chen, Ming-Luan [1 ]
Feng, Yu-Qi [1 ]
机构：
[1] Wuhan Univ, Key Lab Analyt Chem Biol & Med, Minist Educ, Dept Chem, Wuhan 430072, Peoples R China
来源：
MICROPOROUS AND MESOPOROUS MATERIALS | 2012年 / 151卷
基金：
中国国家自然科学基金;
关键词：
Sol-gel; Borosilicate monolith; Meso-macroporous; SILICON ALKOXIDES; GLASSES;
D O I：
10.1016/j.micromeso.2011.10.029
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A meso-macroporous borosilicate monolith was prepared for the first time using a sol-gel method. The proposed material was subsequently characterized by FTIR-ATR and solid-state NMR experiments to investigate the chemical environment of boron in the silica framework. The results showed that boron formed Si-O-B bonds and largely existed as three-coordinated symmetrical structure as well as some tetrahedral structure in the skeleton. According to the ICP-AES experiment, the highest [B]/[Si] molar ratio was 0.15 in the final product. And a bimodal porosity was investigated by SEM, mercury porosimeter and nitrogen adsorption-desorption experiments. This new borosilicate monolithic material could have potential application in both chemical and biological sciences for separation, enrichment or catalysis. (C) 2011 Elsevier Inc. All rights reserved.
引用
收藏
页码：250 / 254
页数：5
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