Abstract Cooking oil fumes (COFs) as an important source of volatile organic compounds (VOCs) in metropolitan areas is poisonous to the environment and human health, and the removal rate of Non-methane Hydrocarbon (NMHC) in COFs was used to verify the activity of catalysts made to depurate COFs. The textural properties of cordierite are limitation to the catalyst's performance. Therefore, in this paper, coating the cordierite to improve its surface properties was investigated. The experiment results and characterization data revealed that TiO 2 was a better coating material because of coating on TiO 2 can improve the surface morphology better than that of Al 2 O 3 . The SEM and BET data of the materials synthesized with different content of CTAB showed that 10 wt% additive amount of pore-forming agent had a better textural properties than other additive amount of pore-forming agents. It is clear that the S BET and D V of the catalysts were significantly increased, and the catalyst exhibited smaller particle size and more developed pore structure after ultrasonic treatment which proving that ultrasound can enhance the catalyst's catalytic activity. It is obviously that the catalyst synthesized with CTAB had best pore structure and Mn 4 Ce 1 /Ti/NC-CTAB-U exhibited the best performance for catalytic combustion of NMHC with the removal rate was 93.6% at 400 °C.

中文翻译：

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使用各种涂层材料和成孔剂合成 Mn-CeOx/堇青石催化剂用于烹饪油烟中的非甲烷烃氧化

摘要 食用油烟（COFs）作为大都市地区挥发性有机化合物（VOCs）的重要来源，对环境和人类健康有害，通过COFs中非甲烷碳氢化合物（NMHC）的去除率来验证其活性。用于净化 COF 的催化剂。堇青石的结构特性限制了催化剂的性能。因此，在本文中，对堇青石进行涂层以改善其表面性能进行了研究。实验结果和表征数据表明，TiO 2 是一种更好的涂层材料，因为TiO 2 上的涂层比Al 2 O 3 可以更好地改善表面形貌。不同CTAB含量合成材料的SEM和BET数据表明，10wt%的成孔剂添加量比其他成孔剂添加量具有更好的质构性能。可以看出，催化剂的S BET和DV显着提高，超声处理后催化剂粒径更小，孔结构更发达，证明超声可以提高催化剂的催化活性。显然，CTAB合成的催化剂具有最好的孔结构，Mn 4 Ce 1 /Ti/NC-CTAB-U对NMHC的催化燃烧性能最好，400℃时去除率为93.6%。超声处理后催化剂粒径更小，孔结构更发达，证明超声能提高催化剂的催化活性。显然，CTAB合成的催化剂具有最好的孔结构，Mn 4 Ce 1 /Ti/NC-CTAB-U对NMHC的催化燃烧性能最好，400℃时去除率为93.6%。超声处理后催化剂粒径更小，孔结构更发达，证明超声能提高催化剂的催化活性。显然，CTAB合成的催化剂具有最好的孔结构，Mn 4 Ce 1 /Ti/NC-CTAB-U对NMHC的催化燃烧性能最好，400℃时去除率为93.6%。