锰基触媒-活性炭复合物的制备及其空气净化性能研究

Preparation of manganese-based catalyst-activated carbon composite and its air purification performance

通过原位反应沉淀法制备了锰基触媒-活性炭复合物,并制成空气净化器滤网进行性能测试,考察了反应条件参数等因素对滤网性能的影响.结果表明:单一锰基触媒可以有效去除甲醛,但对甲苯等VOC的去除效果较差;单一活性炭去除甲醛性能有限,而锰基触媒-活性炭复合物去除甲醛和苯系物类VOCs综合性能最佳,活性炭同时起到触媒载体和室温去除苯系物VOCs的双重作用.

A in-situ deposition method was used to prepare MnO2-based catalyst and activated carbon composite in this study, and the impact of reaction condition parameters on the performance of air filter based on these composite was investigated. The results indicate that pure MnO2-based catalyst can effectively decompose formaldehyde with poor performance in VOCs removal. However, pure activated carbon exhibits limited performance in formaldehyde removal. The MnO2-based catalyst and activated carbon composite exhibits good performance in formaldehyde and VOCs removal. Activated carbon plays double roles as catalyst carrier and adsorbent for VOCs removal at room temperature.