High-Efficiency Degradation Sugar Wastewater by Co-TiO^sub 2^ Nanotube Arrays

This work presents a novel approach for preparing TiO... nanotube arrays loaded with highly dispersed Co nanoparticles through an ultrasound aided photochemical route. The Co content doped on the arrays was controlled by changing the concentration of Co(NO...)... and the ultrasound time. The Co dope...

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Bibliographic Details
Published in:Integrated ferroelectrics 2012-01, Vol.137 (1), p.10
Main Authors: Guo, Dong-Dong, Lin, Sha-Sha, Zhong, Fu-Xin, Zhu, Yi-Nian, Meng, Zhi-Peng
Format: Article
Language:English
Subjects:
Nanotubes
Photocatalysis
Photochemistry
Semiconductor doping
Titanium oxide powders
Water treatment
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Summary:This work presents a novel approach for preparing TiO... nanotube arrays loaded with highly dispersed Co nanoparticles through an ultrasound aided photochemical route. The Co content doped on the arrays was controlled by changing the concentration of Co(NO...)... and the ultrasound time. The Co doped TiO... nanotube arrays were characterized by SEM, XRD, EDS and UV-Vis spectrum. The photocatalytic activities of TiO... nanotube arrays electrode were studied. The results showed that Co doping significantly enhanced the photocatalytic degradation rate of TiO... nanotube arrays under UV-light irradiation. The main factors affected photocatalytic degradation of sugar wastewater such as the illumination time, pH, different concentrations of H...O... and wastewater with undoped TiO... nanotube arrays were compared. The results showed that the longer the exposure time, the higher the initial pH of wastewater is more favorable for the Co-TiO... nanotube arrays, The concentration of H...O... is 60mmol/L, and compared to undoped TiO... nanotube arrays Co doped TiO... nanotube arrays have better photocatalytic properties. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:1058-4587
1607-8489