| TiO2@SBA-15的合成及其光解性能 |
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| 引用本文： | 汪钰萍,张永锁,郑慧,赵福平,丁志杰,柏雷,汪徐春.TiO2@SBA-15的合成及其光解性能[J].材料科学与工程学报,2021,39(6):906-911. |
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| 作者姓名： | 汪钰萍 张永锁 郑慧 赵福平 丁志杰 柏雷 汪徐春 |
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| 作者单位： | 安徽科技学院 化学与材料工程学院,安徽 蚌埠 233100 |
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| 摘 要： | 以水热沉积法在介孔SBA-15上固载TiO2纳米粒子制得光催化剂TiO2@SBA-15,探讨了TiO2负载量对催化效果的影响.以包括N2吸附-脱附、紫外漫反射光谱(DRS)等手段在内的多种技术手段表征了催化剂的结构.研究结果表明适宜负载量的锐钛矿晶型TiO2纳米粒子可均匀分散在载体SBA-15上,N2吸附-脱附进一步表明载体介孔结构得以保持.适宜TiO2负载量的催化剂20 mg紫外光照25 min可将100 mL的10 mg·L-1亚甲基蓝降解完全.
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| 关 键 词： | 介孔材料 光催化降解 亚甲基蓝 吸附 载体 |
Synthesis of TiO2@SBA-15 and Its Photocatalytic Performance |
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| WANG Yuping,ZHANG Yongsuo,ZHENG Hui,ZHAO Fuping,DING Zhijie,BAI Lei,WANG Xuchun.Synthesis of TiO2@SBA-15 and Its Photocatalytic Performance[J].Journal of Materials Science and Engineering,2021,39(6):906-911. |
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| Authors: | WANG Yuping ZHANG Yongsuo ZHENG Hui ZHAO Fuping DING Zhijie BAI Lei WANG Xuchun |
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| Abstract: | TiO2 @SBA-15 photocatalyst was synthesized by hydrothermal deposition of titanium dioxide (TiO2 )nanoparticles using mesoporous SBA-15 as support.The structure of the photocatalyst was characterized by several techniques including ultraviolet visible diffuse reflectance spectroscopy (DRS)and N2 adsorption-desorption.The results from the characterization show that the TiO2 nanoparticles was anatase and was uniformly dispersed on the SBA-15.The mesoporous structure of support SBA-15 was kept and confirmed by N2 adsorption-desorption.After 25 min under ultraviolet radiation,100 mL of the methylene blue with the concentration of 10.0 mg·L-1 was completely degraded by 20 mg mesoporous TiO2@SBA-15. |
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| Keywords: | Mesoporous materials Photocatalytic degradation Methylene blue Adsorption Support |
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