摘要:
In-site regenerated titanium dioxide-activated carbon fibers (TiO
2-ACFs) photocatalyst was prepared by the sol-gel method. Detailed surface and structural characterization of the TiO
2-ACFs photocatalyst was carried out. The photoactivity of TiO
2-ACFs under ultraviolet irradiation was compared with original ACFs and pure TiO
2 by the degradation of methylene blue aqueous solution. The degradation efficiency by the TiO
2 (5wt%)-ACFs sample is much higher than that by TiO
2 and ACFs. The results show that the photocatalysis by TiO
2-ACFs is a six-step process. The adsorption-transfer-photocatalysis rate of TiO
2-ACFs is higher than the adsorption-photocatalysis rate of TiO
2, so the photocatalysis rate of the TiO
2-ACFs system is higher than that of TiO
2 photocatalyst.
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