| 羧甲基壳聚糖-Cu2+配合物催化分解H2O2的研究 |
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| 引用本文： | 孙智敏,王秀霞,安 静.羧甲基壳聚糖-Cu2+配合物催化分解H2O2的研究[J].河北科技大学学报,2007,28(4):302-305. |
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| 作者姓名： | 孙智敏 王秀霞 安 静 |
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| 作者单位： | 1. 河北科技大学理学院,河北石家庄,050018
2. 北京化工大学材料与工程学院,北京,100029 |
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| 摘 要： | 研究羧甲基壳聚糖-Cu2+配合物对H2O2分解的催化活性及影响因素。以壳聚糖为原料,制备水溶性羧甲基壳聚糖(CMC),再以其为配体制备CMC-Cu2+配合物,并将CMC-Cu2+配合物应用于催化H2O2分解的反应,考察了w(CMC)/w(CuCl2)、体系pH值对H2O2分解的影响。结果表明:温度为25℃,w(CMC)/w(CuCl2)为5∶1时形成的CMC-Cu2+配合物,在pH值为7附近,对质量分数为5%的H2O2的分解率12 h为92.5%,24 h为99.5%,说明CMC-Cu2+配合物对H2O2分解有良好的催化作用。
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| 关 键 词： | 羧甲基壳聚糖-Cu2+配合物 过氧化氢 催化 |
| 文章编号： | 1008-1542（2007）04-0302-04 |
| 收稿时间： | 2006-12-25 |
| 修稿时间： | 2007-01-25 |
Study on the catalytic capability of carboxymethyl CMC-Cu2+complex for decomposition of H2O2 |
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| SUN Zhi-min,WANG Xiu-xia and AN Jing.Study on the catalytic capability of carboxymethyl CMC-Cu2+complex for decomposition of H2O2[J].Journal of Hebei University of Science and Technology,2007,28(4):302-305. |
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| Authors: | SUN Zhi-min WANG Xiu-xia and AN Jing |
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| Institution: | College of Sciences,Hebei University of Science and Technology,Shijiazhuang Hebei 050018, China;College of Materials Science and Engineering,Beijing University of Chemical Technology, Beijing 100029,China;College of Sciences,Hebei University of Science and Technology,Shijiazhuang Hebei 050018, China |
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| Abstract: | This paper studies the catalytic capability and the influencing factors of carboxymethyl chitosan(CMC-Cu2+) complex for decomposition of H2O2.The water-solubility carboxymethyl chitosan(CMC) has been prepared with the raw material of chitosan.Strong catalytic capability was obtained with solution concentrative ratio of CMC/CuCl2 being 5∶1 at room temperature 25 ℃,and with about pH 7,the rates of 5% H2O2 decomposition after 12 h,24 h were 92.5%,99.5% respectively.Experimental results show that the complex of CMC-Cu2+ has good catalytic capability for decomposition of H2O2. |
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| Keywords: | CMC-Cu2 complex H2O2 catalysis |
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