摘要
为选择性降低卷烟主流烟气中酚类化合物的释放量,以聚丙烯、三氧化二镍和有机改性蒙脱土为原料,通过催化燃烧法简易制备出碳纳米管复合物(CNTM),利用扫描电子显微镜、透射电子显微镜、X射线衍射、拉曼光谱、X射线光电子能谱、傅里叶变换红外光谱、热重分析仪和比表面及孔径分析仪对其进行了表征,考察了CNTM作为滤嘴添加剂时对卷烟主流烟气中有害成分释放量的去除效果,并探讨了CNTM选择性吸附苯酚的作用机理。结果表明:1CNTM主要由夹杂着蒙脱土片层的多壁碳纳米管组成,并伴有极少量的无定形碳和单质镍。2CNTM具有介孔和大孔结构,比表面积203.30 m2/g,总孔容量0.61cm3/g。3CNTM对卷烟危害性指数的降低率为16.7%,对卷烟主流烟气中苯酚选择性降低率达到24.3%。4CNTM所具有的独特的结构特征、富含Π键的多壁碳纳米管以及丰富的化学官能团决定了其对卷烟主流烟气中焦油及酚类化合物具有优异的物理和化学吸附作用。
To selectively reduce the phenolic compounds in cigarette smoke, carbon nanotube composite （CNTM） was facilely synthesized through catalytic combustion from polypropylene, Ni203, and organic-modified montmoril｜onite. The synthesized CNTM was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, thermal gravimetric analysis and BET surface area analyzer. The effect of CNTM, as a filter additive, on the removal of harmful components in mainstream cigarette smoke was investigated, and the selective adsorption mechanism of CNTM to phenols was deliberated. The results showed that： I） CNTM was mainly composed of multi-layer carbon nanotubes mingled with layers of montmorillonite flakes, and contained very little amorphous carbon and Ni element. 2） CNTM presented meso- and macroporous structure with a specific surface area of 203.30 m2/g and total pore volume of 0.61 cm3/g. 3） CNTM reduced the hazard mainstream cigarette smoke index of cigarette by 16.7%, and its selective reduction rate to phenols in reached 24.3%. 4） With its unique structural character and the hexagonal arrays of its multi-layer namo tube, which contained rich and abundant chemical functional groups, CNTM presented excellent selective physisorption and chemisorption to phenolic compounds.
出处
《烟草科技》
EI
CAS
北大核心
2014年第7期30-36,共7页
Tobacco Science & Technology
基金
安徽中烟工业有限责任公司科技项目"催化燃烧法制备碳纳米管复合物及其应用研究"(2013102)
安徽中烟-中国科大烟草化学联合实验室项目"卷烟热解-阴燃行为动力学及数值模拟应用研究"(20121026)
关键词
碳纳米管复合物
主流烟气
选择性减害
酚类化合物
Carbon nanotube composite
Mainstream cigarette smoke
Selective harm reduction
Phenoliccompounds
