Pd-Cu/MXene非甲烷总烃分析专用催化剂的制备及其应用Preparation and application of Pd-Cu/MXene catalyst for non-methane total hydrocarbon analysis
杨琴琴,汪天照,张晶,陈荷香,陈红兵,何瑜
摘要(Abstract)：
非甲烷总烃(NMHC)是指除甲烷外可挥发的碳氢化合物及衍生物，是形成臭氧和颗粒物重要的基础，对人类健康和环境都具有严重危害.然而，可挥发的碳氢化合物的浓度一般比较低，无法有效分解.催化氧化作为一种潜在可持续的空气污染控制技术，可以将可挥发性碳氢化合物降解为无污染的H_2O和CO_2,其关键在于高效稳定催化剂的制备.因此，本工作采用了等体积浸渍法制备Pd-Cu/MXene催化剂，并应用于NMHC的催化降解，同时也考察了贵金属Pd负载量、焙烧温度及焙烧时间对NMHC催化氧化活性的影响.结果表明，合适的贵金属负载量、焙烧温度及焙烧时间可以极大地提高催化剂的催化活性，当贵金属Pd的负载量为0.1%、焙烧温度为600℃、焙烧时间为2 h时，Pd-Cu/MXene催化剂具有较高的催化活性，在330℃可将NMHC完全降解，并且经过多个催化氧化循环后仍能保持较高的催化活性.
关键词(KeyWords)： Pd-Cu/MXene纳米材料;非甲烷总烃;催化氧化;丙烷
基金项目(Foundation): 湖北省揭榜制科技项目(2020BED008)资助
作者(Author): 杨琴琴,汪天照,张晶,陈荷香,陈红兵,何瑜
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