| 三维网格状β-环糊精树脂制备及其对Cd~(2+)吸附特性 |
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| 引用本文： | 吕胜鹏,戚后娟,徐莉莉,马荣秀,石彩,黄占华.三维网格状β-环糊精树脂制备及其对Cd~(2+)吸附特性[J].东北林业大学学报,2017,45(6). |
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| 作者姓名： | 吕胜鹏 戚后娟 徐莉莉 马荣秀 石彩 黄占华 |
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| 作者单位： | 东北林业大学,哈尔滨,150040 |
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| 基金项目： | 国家自然科学基金项目，黑龙江省留学归国人员科学基金项目，中央高校专项基金项目 |
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| 摘 要： | 采用反相悬浮法,通过接枝共聚合反应,制备了具有三维网格结构的β-环糊精基金属离子吸附树脂。对聚合反应的反应温度、引发剂用量、交联剂用量、丙烯酸中和度等条件进行优化,确定了最佳聚合反应条件。采用FTIR、~(13)CNMR、SEM、DSC等手段表征了产物的物化结构;采用静态法研究了吸附树脂的吸附性能;吸附动力学,分别采用准一阶方程、准二阶方程、Elovich方程、分子间扩散方程拟合。结果表明:每克树脂对质量浓度为80 mg/L的Cd~(2+)溶液吸附金属离子容量为78.94 mg,去除率为52.69%,树脂对Cd~(2+)的吸附更符合准一阶方程、粒子内扩散方程。
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| 关 键 词： | β-环糊精 重金属离子 反相悬浮法 吸附动力学 |
Preparation of β-cyclodextrin Resin with 3D Network and Adsorption Property of Cd2+ |
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| L&#; Shengpeng,Qi Houjuan,Xu Lili,Ma Rongxiu,Shi Cai,Huang Zhanhua.Preparation of β-cyclodextrin Resin with 3D Network and Adsorption Property of Cd2+[J].Journal of Northeast Forestry University,2017,45(6). |
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| Authors: | L&#; Shengpeng Qi Houjuan Xu Lili Ma Rongxiu Shi Cai Huang Zhanhua |
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| Institution: | Lü Shengpeng,Qi Houjuan,Xu Lili,Ma Rongxiu,Shi Cai,Huang Zhanhua |
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| Abstract: | A novel β-cyclodextrin based resin with 3D network was synthesized by the reaction of inverse suspension co-polymerization and graft copolymerization.The physical and chemistry structure of resin was characterized by FTIR, DSC, SEM and 13CNMR.The adsorption behavior of Cd2+ on resin was investigated.Adsorption kinetics data were fitted by pseudo-first-order equation, pseudo-second-order equation, Elovich equation and intra-particle diffusion equation.The adsorption capacity of the resin to 80mg/L Cd2+ is 78.94mg/g.The adsorption data of Cd2+ on resin was well fitted to pseudo-first-order equation and intra-particle diffusion equation. |
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| Keywords: | β-cyclodextrin Cd2+ Inverse suspension Adsorption kinetics |
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