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双硫腙改性的聚(二甲基丙烯酸乙二醇酯-甲基丙烯酸羟乙酯)微球的制备及其对铜离子的吸附研究
Authors
杜志英
杨慧芬
+4 more
瞿欢欢
苏志国
雷建都
马光辉
Publication date
1 January 2009
Publisher
Abstract
用悬浮聚合法由二甲基丙烯酸乙二醇酯(EGDMA)和甲基丙烯酸羟乙酯(HEMA)共聚制备得到聚(二甲基丙烯酸乙二醇酯-甲基丙烯酸羟乙酯)(PHEMA)微球,考察了NaOH浓度、反应时间等对用双硫腙进行PHEMA改性反应的影响以及铜离子水溶液浓度(5~500mg/L)、pH(2.0~6.5)、吸附时间等对改性后的微球对铜离子吸附性能影响的因素。改性的PHEMA微球对铜离子的最大吸附量为65.6mg铜离子/g双硫腙;而且,吸附有铜离子的改性PHEMA微球用0.1mol/L的硝酸的解吸率可达到90%以上,经过3次吸附-解吸循环后,解吸率仍基本不变,这表明双硫腙改性的PHEMA微球可以多次反复使用,具有良好的应用前景
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Last time updated on 05/12/2019
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/46799
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/9826
Last time updated on 09/11/2016
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/46797
Last time updated on 11/04/2021