| 3-N-乙酰基-2-取代芳基-5-[5'-甲基-异噁唑-3']-Δ3-1,3,4－噁唑啉类化合物的合成 |
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| 引用本文： | 施晓文,杜予民,覃采芹,肖玲.3-N-乙酰基-2-取代芳基-5-[5''-甲基-异噁唑-3'']-Δ3-1,3,4－噁唑啉类化合物的合成[J].应用化学,2003,20(8):0-0. |
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| 作者姓名： | 施晓文 杜予民 覃采芹 肖玲 |
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| 作者单位： | 武汉大学环境科学系,武汉,430072 |
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| 基金项目： | 国家自然科学基金资助课题 ( 2 99770 14 ) |
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| 摘 要： | 保护氨基的壳聚糖微球经环氧氯丙烷交联得到不溶于酸的吸附剂，与氯乙酸在碱性条件下反应，合成了羧甲基壳聚糖树脂，并用FT-IR对树脂进行了表征。其吸附Pb^2 的实验结果表明，在1h内有最快的吸附速率，吸附受pH值影响。在pH=5时，对Pb^2 的吸附量为1．12mmol／g，比壳聚糖树脂提高了70％。
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| 关 键 词： | 羧甲基壳聚糖 微球 吸附 Pb^2＋ |
| 文章编号： | 1000-0518(2003)08-0715-04 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2002年9月29日 |
Preparation of Crosslinked Carboxymethyl Chitosan Microsphere and Its Adsorption for Pb2+ |
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| SHI Xiao Wen,DU Yu Min ,QIN Cai Qin,XIAO Ling.Preparation of Crosslinked Carboxymethyl Chitosan Microsphere and Its Adsorption for Pb2+[J].Chinese Journal of Applied Chemistry,2003,20(8):0-0. |
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| Authors: | SHI Xiao Wen DU Yu Min QIN Cai Qin XIAO Ling |
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| Institution: | SHI Xiao Wen,DU Yu Min *,QIN Cai Qin,XIAO Ling |
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| Abstract: | The chitosan microsphere under protection of amino groups was cross linked with epichlorohydrin to get adsorbent insoluble in acid, which was reacted with chloroacetic acid to give carboxymethyl chitosan resin(CMCS). The FT IR spectra and adsorption experiment for Pb 2+ of the product showed that most Pb 2+ were adsorbed on CMCS in the first 1 h and the pH value of the medium has great influence on the adsorption capacity . The adsorption capacity of CMCS towards Pb 2+ was 1 12 mmol/g at pH=5, 70% higher than that of chitosan resin . |
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| Keywords: | carboxymethyl chitosan microsphere adsorption Pb 2+ |
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