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首页> 外文会议>Sol-Gel Methods for Materials Processing: Focusing on Materials for Pollution Control, Water Purification, and Soil Remediation >SYNTHESIS OF SOL-GEL AND GEL-BASED MATERIALS AND THEIR USE FOR ADSORPTION OF ORGANICS
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SYNTHESIS OF SOL-GEL AND GEL-BASED MATERIALS AND THEIR USE FOR ADSORPTION OF ORGANICS

机译：溶胶-凝胶和基于凝胶的材料的合成及其在有机物吸附中的用途

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The development of mesoporous silicas containing organic functionality via templated sol-gel methodology has led to a great deal of interest, primarily as catalysts, but also in applications such as adsorbency. It is possible to prepare materials with a mechanically stable silica backbone, with mesopores having narrow pore size distribution, and which can be coated with a wide range of functionality. They are promising adsorbents due to their controllable surface chemistry and their significant pore volumes. We have also demonstrated that starch can be expanded to give a gel, which can be converted to a novel range of mesoporous carbons, with tuneable surface functionality, high surface area and good pore volume. They display remarkable catalytic activity (for example, they can completely esterify succinic acid in aqueous environments). We believe that this unusual behaviour can be related to their adsorbency properties. We present details of the properties of these materials, as well as preliminary results on their ability to adsorb a range of compounds.
机译：通过模板化的溶胶-凝胶方法开发的包含有机官能团的介孔二氧化硅引起了人们的极大兴趣，主要是作为催化剂，但也有吸附性等应用。可以制备具有机械稳定的二氧化硅主链的材料，其中介孔具有窄的孔径分布，并且可以用多种功能进行涂覆。由于其可控的表面化学性质和显着的孔体积，它们是很有前途的吸附剂。我们还证明了淀粉可以膨胀产生一种凝胶，该凝胶可以转化为新型介孔碳，具有可调节的表面功能，高表面积和良好的孔体积。它们显示出显着的催化活性（例如，它们可以在水性环境中完全酯化琥珀酸）。我们相信这种异常行为可能与其吸附性能有关。我们将详细介绍这些材料的特性，以及有关它们吸附一系列化合物的能力的初步结果。

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