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首页> 外文会议>International Conference on Built Environment and Public Health(BEPH2004); 20041206-08; Shantou(CN) >Photocatalyst TiO_2 Loaded on an Activated Carbon Installed in Air Cleaner for Air Purification
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Photocatalyst TiO_2 Loaded on an Activated Carbon Installed in Air Cleaner for Air Purification

机译：负载在安装在空气净化器中用于空气净化的活性炭上的光催化剂TiO_2

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摘要

TiO_2 immobilized on glass fiber filter (TiO_2 filter) and activated carbon filter (TiO_2/AC) filter was installed in a commercial air cleaner and tested inside an environmental chamber. Common indoor air pollutants such as NOx and toluene were selected as target pollutant. Results showed that the air cleaner without the installation of TiO_2 filter or TiO_2/AC filter removed only very little target pollutants. Compared to the TiO_2 filter, TiO_2/AC filter not only achieved a higher NO removal but also significantly suppressed the intermediate NO_2 generated from the photodegradation of NO. Likewise, the concentration of the target pollutant reached a photo-steady-state faster using the TiO_2/AC filter than the TiO_2 filter. The higher removal efficiency of using TiO_2/AC is owing to the synergistic effect between the TiO_2 and the activated carbon. The adsorbed NO is then transferred to the TiO_2 for photodegradation. The difference in toluene removal using TiO_2/AC filter compared to the TiO_2 filter is even more significant.
机译：将固定在玻璃纤维过滤器（TiO_2过滤器）和活性炭过滤器（TiO_2 / AC）过滤器上的TiO_2安装在商用空气滤清器中，并在环境室内进行测试。选择常见的室内空气污染物（例如NOx和甲苯）作为目标污染物。结果表明，未安装TiO_2过滤器或TiO_2 / AC过滤器的空气净化器仅去除了很少的目标污染物。与TiO_2过滤器相比，TiO_2 / AC过滤器不仅实现了更高的NO去除率，而且还显着抑制了NO的光降解所产生的中间NO_2。同样，使用TiO_2 / AC过滤器比使用TiO_2过滤器更快地达到目标污染物的光稳态。由于TiO_2和活性炭之间的协同作用，使用TiO_2 / AC的去除效率更高。然后将吸附的NO转移到TiO_2中进行光降解。与TiO_2过滤器相比，使用TiO_2 / AC过滤器去除甲苯的差异甚至更大。

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