摘要: A series of novel amino functional materials were prepared by immobilizing amino compounds on different carriers, such as silica gel, active charcoal, alumina, and tobacco stem, etc. The obtained amino functional materials were added into the cigarette filter for selectively reducing hydrocyanic acid (HCN) and crotonaldehyde in cigarette smoke. The nitrogen element analysis results of the amino functional material indicated that there was no significant loss of amino compound during preparation process. However, the BET surface area, pore volume, and pore size decreased when L-arginine was immobilized on silica gel. The FT-IR spectra suggested that the hydrogen bond interaction between amino group and the hydroxyl group on silica gel surface is advantageous for immobilizing L-arginine. L-arginine immobilized on silica gel was the most efficient in reducing HCN and crotonaldehyde in cigarette smoke. Comparing with the control cigarette, the cigarette containing 30 mg/cig of the amino functional materials in filter could selectively remove 20.7% of HCN, 32.2% of crotonaldehyde, and 50.9% of formaldehyde in cigarette smoke. The moisture content in cigarette smoke increased slightly, and the deliveries of tar, nicotine, and CO were almost unchanged. The smoothness of cigarette smoke was improved, the smoke dryness and irritation were decreased, while the styles and characteristics of cigarette did not change by the addition of the amino functional material in the filter.