Multichannel TiO2 hollow fibers with enhanced photocatalytic activity

Tianyi Zhao, Zhaoyue Liu, Kazuya Nakata, Shunsuke Nishimoto, Taketoshi Murakami, Yong Zhao, Lei Jiang, Akira Fujishima

Research output: Contribution to journalArticleResearchpeer-review

151 Citations (Scopus)


This work describes that the photocatalytic activity of microsized TiO 2 fibers for degrading gaseous acetaldehyde can be systematically enhanced by introducing nanostructured interior hollow channels, which is achieved by a facile multifluidic electrospinning method. The increased channel number augments the BET surface area of TiO2 fibers intuitively. A quite interesting phenomenon is that the percentage increase for photocatalytic activity is higher than that for surface area. It is thus proposed that the multichannel hollow structures induce not only an inner trap effect on gaseous molecules, but also a multiple-reflection effect on incident light, which further improves the photocatalytic activity of TiO2 hollow fibers.

Original languageEnglish
Pages (from-to)5095-5099
Number of pages5
JournalJournal of Materials Chemistry
Issue number24
Publication statusPublished - 21 Jun 2010
Externally publishedYes

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