Zhang Hongfeng, He Xiu, Zhao Weiwei, Peng Yu, Sun Donglan, Li Hao, Wang Xiaocong
College of Chemical Engineering and Material Science, Tianjin University of Science & Technology, Tianjin 300457, China E-mail:
College of Science, Tianjin University of Science & Technology, Tianjin 300457, China.
Water Sci Technol. 2017 Apr;75(7-8):1523-1528. doi: 10.2166/wst.2017.002.
FeO/TiO magnetic mesoporous composites were synthesized through a sol-gel method with tetra-n-butyl titanate as precursor and surfactant P123 as template. The as-prepared FeO/TiO composites were characterized by X-ray diffraction, diffuse reflectance spectroscopy, nitrogen adsorption-desorption isotherm and pore size distribution. The as-synthesized products were applied as photocatalysis for the degradation of Acid Black ATT and tannery wastewater under UV lamp irradiation. FeO/TiO-8 composites containing FeO of 8 wt% were selected as model catalysts. The optimal catalyst dosage was 3 g/L in this photocalytic system. The magnetic FeO/TiO composites possessed good photocatalytic stability and durability. This approach may provide a platform to prepare a magnetic composite to optimize the catalytic ability.
以钛酸四丁酯为前驱体、表面活性剂P123为模板，通过溶胶-凝胶法合成了FeO/TiO磁性介孔复合材料。采用X射线衍射、漫反射光谱、氮吸附-脱附等温线和孔径分布对所制备的FeO/TiO复合材料进行了表征。将合成产物用作光催化剂，在紫外灯照射下对酸性黑ATT和制革废水进行降解。选择含8 wt% FeO的FeO/TiO-8复合材料作为模型催化剂。在该光催化体系中，最佳催化剂用量为3 g/L。磁性FeO/TiO复合材料具有良好的光催化稳定性和耐久性。该方法可为制备磁性复合材料以优化催化性能提供一个平台。
