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光导纤维用耐热、耐湿光固化涂料及其涂装工艺:JP2003-2 702
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《涂料技术与文摘》 2003年第4期52-52,共1页
关键词 导纤维 耐湿光 固化涂料 涂装工艺
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High-humidity tolerance of porous TiO2(B)microspheres in photo thermal catalytic removal of NOx 被引量:1
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作者 He Ma Changhua Wang +2 位作者 Songmei Li Xintong Zhang Yichun Liu 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 北大核心 2020年第10期1622-1632,共11页
Semiconductor oxides are widely used to achieve photocatalytic removal of NOx(NO and NO2) species. These materials also exhibit enhanced oxidation ability in thermally assisted photocatalysis;however, many of them ten... Semiconductor oxides are widely used to achieve photocatalytic removal of NOx(NO and NO2) species. These materials also exhibit enhanced oxidation ability in thermally assisted photocatalysis;however, many of them tend to be deactivated at high relative humidity(RH) levels. In the case of the benchmark P25 TiO2 photocatalyst, we observe a significant decrease in non-NO2 selectivity from 95.02% to 58.33% when RH increases from 20% to 80%. Interestingly, the porous TiO2(B) microspheres synthesized in this work exhibit 99% selectivity at 20% RH;the selectivity remains as high as 96.18% at 80% RH. The high humidity tolerance of the TiO2(B) sample can be ascribed to its strong water desorption capacity and easy O2 adsorption at elevated temperatures, which reflects the fact that the superoxide radical is the main active species for the deep oxidation of NOx. This work may inspire the design of efficient photothermal catalysts with application in NOx removal in hot and humid environments. 展开更多
关键词 TiO2(B) PHOTOCATALYST Photothermal catalysis High-humidity tolerance NO degradation
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