Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2006, Vol. 17 ›› Issue (4): 212 doi: 10.1016/S1001-8042(06)60039-0

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Surface XPS-investigations of tobacco leaves treated with low-temperature plasma

SHAO Guo-Quan1 HUANG Huan2,* HONG Shen-Qiu3 FU Sheng-Quan2 LI Sheng-Qun4 YAO Zhong-Da4 LI Chang-Xing4   

  1. 1 Department of Chemistry and Materials Engineering, Hefei College, Hefei 230026, China;
    2University of Science and Technology of China, Hefei 230026, China;
    3Department of Science and Technology, Anhui Tobacco Company, Hefei 230022, China;
    4Hefei Cigarette Factory, Hefei 230000, China
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SHAO Guo-Quan HUANG Huan HONG Shen-Qiu FU Sheng-Quan LI Sheng-Qun YAO Zhong-Da LI Chang-Xing. Surface XPS-investigations of tobacco leaves treated with low-temperature plasma.Nuclear Science and Techniques, 2006, 17(4): 212     doi: 10.1016/S1001-8042(06)60039-0

Abstract: The tobacco leaves were treated with low-temperature plasma in Ar, N2, O2, and air atmospheres at different powers (60―130 W). The surface-elemental components, their relative contents, and the functional groups of the surface components of the tobacco leaves were determined using XPS (X-ray photoelectron spectroscopy). The ex-perimental results showed that the percentage of the elements C, N, and O had changed considerably and a large number of polar functional groups containing oxygen atoms were incorporated into the components on the tobacco surfaces. The measurements of the surface contact angle showed that the surface contact angle of the modified tobacco leaves was 0 degree, whereas it was 110 degrees before the plasma treatment. These results indicate that the wettability of the modified tobacco leaves improved dramatically. This work may be significant for future researches on the surface modification of the tobacco leaves.

Key words: Low temperature plasma, Surface modification, XPS, Contact angle