硅酸盐学报

以三聚氰胺甲醛微球为模板制备介孔二氧化硅和二氧化钛空心微球

作者：房洪杰1 刘慧1 闫芳1 李洪亮2

单位：1. 烟台南山学院材料与冶金工程学院山东烟台 265713 2. 青岛大学化学化工与环境学院纤维新材料与现代纺织国家重点实验室培育基地山东青岛 266071

分类号：TQ 17

出版年,卷(期):页码：2015,43(2):12-13

DOI：10.14062/j.issn.0454-5648.2015.02.13

摘要：

以聚合物三聚氰胺甲醛(MF)微球为模板，十六烷基三甲基溴化铵(CTAB)为致孔剂，经溶胶-凝胶和高温煅烧两步法，制备了SiO2和TiO2介孔结构的空心微球。以亚甲基蓝水溶液为模型物，分别评价了SiO2和TiO2微球的吸附性能和光催化活性。对空心微球的结构、形貌和光谱性质进行了表征。结果表明：两种微球的粒径为300 nm左右，具有完整的球形空腔、较高的比表面积和介孔结构壳层；SiO2空心微球具有良好的吸附性能，而TiO2空心微球在紫外光照射下有高效的光催化活性。

Mesoporous hollow spheres consisting of SiO2 or TiO2 were prepared with melamine formaldehyde (MF) microspheres as a core template and CTAB as a pore directing agent via a sol-gel process and subsequent calcination. The adsorption property of SiO2 hollow spheres and photocatalytic degradation activity of TiO2 hollow spheres to methylene blue (MB) were evaluated, respectively.The structure, morphology, composition and optical properties of the resultant hollow sphere were characterized. The results show that the hollow spheres with the diameter of 300 nm, the relative large specific surface area and the mesoporous shell can be obtained. The SiO2 hollow spheres show an intensive adsorption performance to MB. The TiO2 hollow spheres have the superior photocatalytic degradation property under an ultraviolet light equipped.

基金项目：

基金项目：国家“973”计划项目(2012CB722705)；国家高技术研究发展计划(2012AA110407)资助。

作者简介：

第一作者：房洪杰(1977—)，男，硕士，副教授。通信作者：李洪亮(1971—)，男，博士，教授。

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