Study on highly visible light active Bi-doped TiO2 composite hollow sphere |
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| Authors: | Jingjing Xu Mindong ChenDegang Fu |
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| Institution: | a Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, College of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China
b State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China |
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| Abstract: | Bi-doped hollow titania spheres were prepared using carbon spheres as template and Bi-doped titania nanoparticles as building blocks. The Bi-doped titania nanoparticles were synthesized at low temperature. The prepared hollow spheres were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), UV-vis diffuse reflectance spectrum (DRS) and X-ray photoelectron spectroscopy (XPS). The effects of Bi content on the physical structure and photocatalytic activity of doped hollow titania sphere samples were investigated. Results showed that there was an optimal Bi-doped content (4%) for the photocatalytic degradation of methylene blue (MB). |
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| Keywords: | Photocatalysis Bi-doped Titania Hollow spheres Methylene blue |
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