Application of Photocatalytic Concrete Paint and Its effect of decomposing vehicle exhaust
With the widely research of Photocatalytic titanium dioxide,researchers have found another way of managing air quality.As an excellent photocatalyst material,nanometer titanium dioxide has begun to be used in road engineering in recent years.In this paper,at first,different content of titanium dioxide were dispersed evenly and separately in a kind of silane solvent to make the coating material with photocatalytic performance.The results show that nanometer titanium dioxide is able to decompose CO,HC,NO and CO2 after being dispersed in silane solvent.The results also show that a certain content of titanium dioxide can be chosen after considering effect,workability and economic factors in practical application.Then the brushing method and the decomposition effect of the photocatalytic paint are discussed.The tests indicate that proper content of nanometer titanium dioxide with suitable brushing method can maximize catalytic efficiency.At last,in order to study the decomposition mechanism,using ion chromatography and chemical titration to analyze the decomposition products separately,the results prove that nanometer titanium dioxide can decompose NO,HC,CO and other harmful gases into nitrate and carbonate.
nano-titania vehicle exhaust photocatalytic paint catalytic efficiency
Xiao-Lun Wang Li-Ping Liu Hai-Ming Xu
Key Laboratory of Road and Traffic Engineering of the Education Ministry,Tongji University, 4800 Caoan Road, Shanghai 201804, China
国际会议
北京
英文
98-105
2012-12-16（万方平台首次上网日期，不代表论文的发表时间）