孙勇; 张金平; 杨刚; 李佐虎
Source Publication光谱学与光谱分析
AbstractThe Fourier transform infrared spectroscopy (FTIR), ultraviolet-Visible spectroscopy (UV-visible), Fourier transform Raman spectroscopy (FT-Raman), and nuclear magnetic resonance spectroscopy (H-1 NMR) were used to study the oxidation of spruce lignin by chloride dioxide. The results are as following: The selective oxidation of lignin by chlorine dioxide was obtained by spectroscopy study. FTIR showed that the characteristic absorbance peak of guaiacyl unit in the lignin structure was decreased after chloride dioxide oxidation, while the peaks of syringyl and para-hydroxyphenol disappeared after oxidation. The largely increased absorbance for the band around 1 720 cm(-1) corresponding to carbonyl stretching was achieved in the oxidized lignin. The ultraviolet-visible spectroscopy showed that the absorbance around 280 nm was largely reduced after the lignin had been oxidized. The H-1 NMR spectroscopy also showed the decrease of aromatic units and methoxyl group in the oxidized lignin. These indicated the formation of ester, or quinone derivatives when the lignin was selectively oxidized by chloride dioxide.
Document Type期刊论文
First Author Affilication中国科学院过程工程研究所
Recommended Citation
GB/T 7714
孙勇,张金平,杨刚,等. 二氧化氯氧化云杉木质素的光谱研究[J]. 光谱学与光谱分析,2007,27(8):1551.
APA 孙勇,张金平,杨刚,&李佐虎.(2007).二氧化氯氧化云杉木质素的光谱研究.光谱学与光谱分析,27(8),1551.
MLA 孙勇,et al."二氧化氯氧化云杉木质素的光谱研究".光谱学与光谱分析 27.8(2007):1551.
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