Selectively Reducing HCN Delivery in Mainstream Cigarette Smoke with Amino-functionalized Mesoporous Silica Materials

Abstract

In order to selectively reduce the delivery of HCN in mainstream cigarette smoke,an amino-functionalized mesoporous silica material(MCM-41-NH2) was prepared and characterized by means of scanning electron microscopy(SEM),X-ray diffraction(XRD),specific surface area and pore size analyzer(BET) and 13C solid-state nuclear magnetic resonance(NMR),then the prepared material was applied to cigarette filter to reduce the deliveries of harmful components in cigarette smoke.The results showed that: 1) Comparing with MCM-41 material,the crystal form of MCM-41-NH2 did not change significantly,however its pore size and specific surface area were reduced by 50%.2) When MCM-41-NH2 material was added into cigarette filter,up to 25.7% of HCN in mainstream cigarette smoke was selectively reduced,while the physical parameters of cigarette and the deliveries of routine smoke components were basically the same as those of reference cigarette.