YINGJIN SONG
Articles written in Bulletin of Materials Science
Volume 42 Issue 5 October 2019 Article ID 0239
Photodegradation of methylene blue over a new down-shifting luminescence catalyst
RUI LIU TAO LIU YINGJIE QIAO YONGCHAO BIE YINGJIN SONG
TiO$_2$ nanotube arrays prepared by anodization technology are modified with a samarium ion (Sm$^{3+}$) by a hydrothermal method for use in photodegradation of methylene blue (MB). The samarium ion as a down-shifting luminescence material can improve UV radiation harvesting to increase visible light utilization. The efficiency of the photocatalytic activity for the modified-TiO$_2$ nanotube arrays in degradation of MB was investigated under UV–Vis light irradiation. The results show that Sm–TiO$_2$ nanotubes can increase the photocatalytic efficiency of MB. When TiO$_2$ nanotubes are modified by 0.02 M Sm$^{3+}$, MB can be almost completely degraded when compared with bare TiO$_2$ nanotubes. This indicates that TiO$_2$ nanotubes structure, surface area and good UV radiation harvesting play important roles in the degradation of MB.
Volume 43, 2020
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Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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