有序介孔锰氧化物催化双氧水降解水中高稳定性有机污染物特性及机理研究

项目名称： 有序介孔锰氧化物催化双氧水降解水中高稳定性有机污染物特性及机理研究

项目编号： No.51278351

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 建筑科学

项目作者： 隋铭皓

作者单位： 同济大学

项目金额： 80万元

中文摘要： 多相催化氧化技术已成为去除水中高稳定有机污染物的重要技术,过渡金属氧化物为常用催化剂；传统过渡金属氧化物比表面积小，传质性能差，无法有效发挥催化性能。基于申请者发现有序介孔材料载体独特的规则孔道结构和大比表面积有助于催化剂活性发挥，本课题将锰氧化物直接制备成有序介孔结构用于催化双氧水氧化。双氧水氧化能力强，成本低廉、储运方便；有序介孔锰氧化物具有规则孔道结构、大比表面积、高催化活性成分浓度和快速传质优势。通过优化锰氧化物有序介孔结构形成制备条件、探析双氧水分解规律和机制、研究高稳定有机污染物表面吸附和降解行为、优化催化氧化工艺条件，以摸清有序介孔锰氧化物催化双氧水降解水中高稳定性有机物特性与机理，开发出高效、低成本、实用性强的水中高稳定性有机污染物去除技术。有序介孔材料具有无机组分多样性的特点，本研究结果可能为水处理多相催化氧化技术有序介孔过渡金属催化剂的大量引入及应用提供基础数据。

中文关键词： 介孔过渡金属氧化物；催化；臭氧；过氧化氢；吸附

英文摘要： Heterogeneous catalytic oxidation has been a promising method to remove refractory organic pollutants from water. Transitional metal oxides are widely used in catalytic processes, while, the small specific surface area of transitional metal oxides impacts their catalytic activity. Base on the previous finding that ordered mesoporous material serving as support can obviously improved the catalytic activity of catalyst owing to its unique ordered mesoporous structure and high specific surface area, the idea that to prepare manganese oxides directly into ordered mesoporous structure was inspired. This proposed project aims at preparing the ordered mesoporous manganese oxides to assist hydrogen peroxide to degrade and remove the refractory organic pollutants in water. Hydrogen peroxide is a strong oxidant with low price, and can be expediently stored and transported. The high catalytic activity is expected due to the high concentration of active constituents and rapid mass transfer in the presence of ordered mesoporous manganese. The preparation conditions will be optimized; mechanism of decomposition of hydrogen peroxide on the surface of ordered mesoporous manganese will be elucidated; adsorption of organic pollutants and the further degradation will be investigated; and the operation conditions will also be optim

英文关键词： mesoporous transitional metal oxides；catalysis；ozone；hydrogen peroxide；adsorption