Effects of vacuum on photocatalytic activity of TiO2
Effects of vacuum on photocatalytic activity of TiO2
复制标题
真空对TiO2光催化活性的影响
DOI:
10.1117/12.2320500
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
and H. Sakama
中科院分区:
文献类型:
--
作者:
1.N. Shimosako;T. Egashira;K. Yoshino;K. Shimazaki;E. Miyazaki;and H. Sakama
Contamination outgassed from spacecraft's materials can degrade optical devices in orbit. Therefore, solving the contamination problem is important because it in uences the success of spacecraft missions. In this study, methyl red (MR) and oleamide were decomposed in vacuum by TiO2photocatalyst. Absorbance spectra, mass decrease and GC/MS were measured after and before decomposition. In vacuum, TiO2could decompose MR to intermediate products, whereas it could not decompose the intermediate products to volatile substances because TiO2cannot open benzene rings of the intermediate products. On the other hand, TiO2could decompose oleamide to volatile substances even in vacuum. However, decomposition by TiO2stopped after a certain period of time in vacuum. The decrease in mass for oleamide by photocatalytic reaction in vacuum was enough compared to standard molecular contamination levels.
DOI:
10.2322/stj.6.81
发表时间:
2007
期刊:
Space Technology Japan, The Japan Society for Aeronautical and Space Sciences
影响因子:
--
作者:
Fumitaka Urayama;M. Furukawa;K. Ozawa;M. Tosa;H. Kimura
通讯作者:
H. Kimura
DOI:
10.2322/jjsass.56.543
发表时间:
2008
期刊:
Journal of The Japan Society for Aeronautical and Space Sciences
影响因子:
--
作者:
Fumitaka Urayama;K. Yano;R. Yamanaka;E. Miyazaki;Y. Kimoto
通讯作者:
Y. Kimoto
影响因子:
2.4
作者:
M. Mahmoud;A. Poncheri;Y. Badr;M. G. A. E. Wahed
通讯作者:
M. G. A. E. Wahed