Synthesis of SBA-15/Ni/TiO2/CNTs composites and their photocatalytic activities

被引：0
作者：
Sun, Xiuli [1 ]
Chen, Aiping [1 ]
Lü, Hui [1 ]
He, Hongbo [1 ]
He, Tiantian [1 ]
Lin, Qizhi [1 ]
Li, Chunzhong [1 ]
机构：
[1] Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai
来源：
Huagong Xuebao/CIESC Journal | 2014年 / 65卷 / 09期
关键词：
CNTs; Photocatalysis; SBA-15; TiO[!sub]2[!/sub;
D O I：
10.3969/j.issn.0438-1157.2014.09.057
中图分类号：
学科分类号：
摘要：
SBA-15/NiO/TiO2 nanocomposites were prepared by coating nano-TiO2 doped with nickel on SBA-15 support using the sol-gel method. Then carbon nanotubes (CNTs) were grown by in-situ chemical vapor deposition (CVD) on the surface of the SBA-15/NiO/TiO2 with metallic nickel reduced in TiO2 as catalyst. The prepared SBA-15/Ni/TiO2/CNTs nanocomposite photocatalysts were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, UV-Vis absorption spectroscope and Raman spectra. The photocatalytic activities of the samples were investigated by the photocatalytic degradation of methylene blue. The photocatalytic activities of SBA-15/Ni/TiO2/CNTs increased significantly in comparison with SBA-15/NiO/TiO2. The photocatalytic activities of the nanocomposite by twice coating with TiO2 doped with nickel on SBA-15 was also higher than once coating. © All Rights Reserved
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页码：3718 / 3723
页数：5
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