引用本文:
娄振宁, 任富强, 王静, 李叶霞, 张庆, 单炜军, 熊英. 二异丁胺修饰的天然壳聚糖磁性微球与铼的吸附行为[J]. 应用化学,
2014, 31(9): 1031-1036.
doi:
10.3724/SP.J.1095.2014.30604
Citation: LOU Zhenning, REN Fuqiang, WANG Jing, LI Yexia, ZHANG Qing, SHAN Weijun, XIONG Ying. Re(Ⅶ) Adsorption by Magnetic Cross-linked Chitosan Microspheres Modified with Diiobutylamine[J]. Chinese Journal of Applied Chemistry, 2014, 31(9): 1031-1036. doi: 10.3724/SP.J.1095.2014.30604
Citation: LOU Zhenning, REN Fuqiang, WANG Jing, LI Yexia, ZHANG Qing, SHAN Weijun, XIONG Ying. Re(Ⅶ) Adsorption by Magnetic Cross-linked Chitosan Microspheres Modified with Diiobutylamine[J]. Chinese Journal of Applied Chemistry, 2014, 31(9): 1031-1036. doi: 10.3724/SP.J.1095.2014.30604
二异丁胺修饰的天然壳聚糖磁性微球与铼的吸附行为
English
Re(Ⅶ) Adsorption by Magnetic Cross-linked Chitosan Microspheres Modified with Diiobutylamine
Abstract:
The magnetic cross-linked chitosan microspheres were prepared using Fe3O4 nanoparticles as cores and chitosan(CS) as polymeric shell with diisobutylamine(FCS-DIBA) modification. For the Re(Ⅶ) species coexisting with Fe(Ⅲ), Zn(Ⅱ), Mn(Ⅶ) and Cu(Ⅱ), the FCS-DIBA adsorbent exhibits selectivity only for Re(Ⅶ) among coexisting heavy metals in pH=2. The maximum adsorption capacity for Re(Ⅶ) is up to 185 mg/g, The adsorption behavior fits the Langmuir isotherm model. The mechanism for these excellent adsorption characteristics was discussed.
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Key words:
- rhenium
- / crab shells chitosan
- / chemical modification
- / adsorption
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