烟草科技Issue(10)：49-53,5.
疏水纳米SiO2选择性降低卷烟烟气有害成分含量
Selective Reduction of Harmful Components in Cigarette Smoke with Hydrophobic Nanometer Silicon Dioxide
摘要
Abstract
In order to investigate the effect of surface properties of nanometer materials on their performance of selectively reducing major harmful components in cigarette smoke, hydrophilic nanometer SiO2 was modified by trimethylsilyl chloride silane, and the SiO2 samples before and after modification were separately added into tobacco or filter tips for studying their functions. The results showed that; the hydroxy group was basically disappeared from the surface of modified nanometer SiO2 and the sample exhibited hydrophobic property. When the modified nanometer SiO2 was added into cut tobacco, about 27% of phenol and 12% of crotonaldehyde were removed from mainstream cigarette smoke, and CO content decreased slightly. Contrarily, the contents of phenol, crotonaldehyde and CO in the samples containing hydrophilic nanometer SiO2 increased to different extents. Similarly, when the modified nanometer SiO2 was added into filter tip, about 13% of phenol and 8% of crotonaldehyde were removed from mainstream cigarette smoke, while hydrophilic nanometer SiO2 was inoperative. Therefore, the hydrophobic property of nanometer materials plays an important role in selective adsorption of weak-polar harmful components in cigarette smoke.关键词
卷烟烟气/纳米材料/疏水改性/苯酚/巴豆醛/选择性吸附Key words
Cigarette smoke/Nanometer material/Hydrophobic modification/Phenol/Crotonaldehyde/Selective adsorption分类
轻工纺织引用本文复制引用
冯守爱,黄泰松,邹克兴,陈志燕,黄天辉,朱永法..疏水纳米SiO2选择性降低卷烟烟气有害成分含量[J].烟草科技,2011,(10):49-53,5.基金项目
中国烟草总公司科学研究与技术开发重大专项"选择性减害技术研究及产品应用"(110200701009) （110200701009）
广西中烟工业有限责任公司技术创新项目"纳米技术应用于选择性降低卷烟烟气有害成分的研究"(2010-20). （2010-20）
