Affiliation:
1. Nagasaki University
2. National Yunlin University of Science and Technology
Abstract
This study utilized chemical method to reform titania nanopowder into larger surface area titania-based nanotubes (NTs). Various factors, such as reaction temperature, concentration, time, and aging time were investigated to determine their effects toward NT properties. The formation of the titania-based NTs was carried out under the conditions of 10N NaOH reaction medium, at reaction temperature and time of 116°C and 23 hours, respectively. Subsequent aging was done at 40°C for 24 hours. The NTs were further resintered at 400°C for 1 hour to improve their crystallinity and photocatalytic efficiency. Result indicates that aging process is significant for NT synthesis process. The treated titania-based NT has a surface area of 247.91 m2/g with nearly 100% photodecomposition of (MB) in 15 minutes.
Publisher
Trans Tech Publications, Ltd.
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