Analysis of surface functional groups on tobacco stem
DU Peng
CHE Jing
WANG Hai-bin
ZHOU Jin
Abstract：The effect of microwave expansion on the surface functional groups of tobacco stem by conven-tional stem cutting method was studied.The stem was characterized by X-ray photoelectron spectroscopy (XPS)and Fourier transform infrared spectroscopy (FT-IR).The FT-IR result showed that:after micro-wave treatment,the percentage of surface hydroxyl,carboxyl and-CN increased significantly.There was no significantly different between traditional cut stem and novel cut stem during FT-IR tests.The XPS result showed that phenolic hydroxyl,ether,carboxy were three forms of carbon in microwave expansion stem.The forms of oxygen in all samples were similar,and expanded stem had higher content of hydroxyl than original stem.In addition,there were many nitrogen groups in the surface of the expanded stem molecule.
Keywords：tobacco stemmicrowave expansioncharacteristicssurface functional group
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 35-39 )