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《Journal of Beijing Polytechnic University》 2004-01
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Performance Test of Nano TiO_2 Coating Used in Spacecraft

XIAO Jin-song, ZI Xue-hong, MA Chong-fang ( Enhanced Heat Transfer and Energy Conservation, Key Lab of Ministry of Education, Beijing University of Technology, Beijing 100022, China )  
In order to testify the fact that the nano TiO2 coating can be used to purify air and kill the bacteria within spacecraft, the nano-TiO2 coating photocatalytic experiments are carried out within a 4 m3 sealed chamber which is made up of rectangular organic glass plates, the area of nano TiO2 coating is 4 m2 and the irradiating ultraviolet wavelength is 365 nm. Data processing adopts the method of clean air delivery rate (CADR). The experimental results indicate that the nano TiO2 coating's purifying rate of the sulfur dioxide is 23.09%, that of the formaldehyde is 2.48% and the nitrogen dioxide 4.88% per minute. The antibacterial rate of Escherichia coli is 96%- 99% and the rate of Klebsiella pneumoniae is 92%-96%.
【Fund】: 国家科技部“九五”重点基础研究基金资助项目(GB20000263).
【CateGory Index】: TQ637
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Chinese Journal Full-text Database 5 Hits
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