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| 碱度与温度对臭氧降解木质素反应速率的影响 | |
| 引用本文： | 龚岳,李志光,李辉勇,伏振宇. 碱度与温度对臭氧降解木质素反应速率的影响[J]. 湖北化工, 2012, 0(4): 87-90 |
| 作者姓名： | 龚岳 李志光 李辉勇 伏振宇 |
| 作者单位： | 湖南农业大学理学院,湖南长沙410128 |
| 基金项目： | 湖南省自然科学基金重点资助项目（07JJ3023）; 湖南省教育厅资助项目（06C418） |
| 摘 要： | 研究了碱度和温度对臭氧降解木质素反应速率的影响,通过紫外光谱分析,测定木质素降解不同时间后的浓度,绘制了木质素浓度—时间曲线。结果表明,碱度能促进降解反应的进行,但对反应速率影响较小;温度对反应速率影响显著,活化能在60～65kJ.mol-1之间。 |
| 关 键 词： | 碱度 温度 臭氧 木质素 降解反应速率 |
The Effects of Basicity and Temperature on Reaction Rate of Lignin Degraded by Ozone |
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| GONG Yue,LI Zhi-guang,LI Hui-yong,FU Zhen-yu. The Effects of Basicity and Temperature on Reaction Rate of Lignin Degraded by Ozone[J]. Hubei Chemical Industry, 2012, 0(4): 87-90 | |
| Authors: | GONG Yue LI Zhi-guang LI Hui-yong FU Zhen-yu |
| Affiliation: | (College of Science,Hunan Agriculture University,Changsha 410128,China) |
| Abstract: | The effects of basicity and temperature on reaction rate of lignin degraded by ozone were studied.Through ultraviolet spectroscopy analysis,lignin concentrations at different dagradation time were determined,the curves of lignin concentration-time were determined also.The results showed that,basicity could enhance the degradation reaction,but the effect on the reaction rate was small,temperature affected the reaction rate obviously,and the activation energy of the reaction was 60~65 kJ·mol-1. |
| Keywords: | basicity temperature ozone lignin degradation reaction rate |
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