6-氨乙胺基-6-脱氧壳聚糖对卷烟烟气中苯酚的吸附性能

以壳聚糖(CS)、氯化亚砜和乙二胺为原料,制备6-氨乙胺基-6-脱氧壳聚糖(ACS).产物采用傅里叶变换红外光谱,氢谱核磁和元素分析等方法进行表征.研究ACS在溶液中对苯酚的吸附性能,以及对卷烟主流烟气中有害成分的吸附情况.结果表明:在pH值为5.0,吸附时间为2 h的条件下,ACS对苯酚的吸附量随着苯酚质量浓度的增大而增加,其对苯酚的饱和吸附量为140.85 mg·g^-1;ACS作为添加剂应用到卷烟滤嘴中,可不同程度地减少主流烟气中的7种有害成分,对烟气中的苯酚具有选择性吸附效果;常规滤嘴、含CS和ACS滤嘴的卷烟危害指数分别为8.04,7.41和6.78.

Adsorption Property of Phenol in Cigarette Smoke by 6-Aminoethylamine-6-Deoxychitosan

6-Aminoethylamine-6-deoxychitosan(ACS)was prepared from chitosan(CS), sulfoxide chloride and ethylenediamine. The product was characterized by Fourier transform infrared, nuclear magnetic resonance and elemental analysis. The adsorption of ACS on phenol in solution was studied, and then ACS was used on the adsorption of harmful components in mainstream cigarette smoke. The results showed that the adsorption capacity of ACS on phenol was increased with the increase of phenol mass concentration under the condition of pH 5.0 and adsorption time 2 h, and the saturated adsorption capacity of ACS on phenol was 140.85 mg·g^-1. ACS could reduce the seven harmful components in the mainstream cigarette smoke in different degrees when used as an additive in cigarette filters, and it had selective adsorption effect on phenol. The cigarette hazard index of the conventional filters, filters with CS and ACS were 8.04, 7.41 and 6.78, respectively.