[1]范忠雷,李瑞瑞.表面铜离子印迹聚胺硅胶材料的吸附行为[J].郑州大学学报(工学版),2015,36(06):30.[doi:10.3969/j. issn.1671 -6833.2015.06.006]
　FAN Zhonglei,Ll Ruirui.Adsorption behavior of surface ion-imprinted poly(allylamine)-silica material for Cu(II) from aqueous solution[J].Journal of Zhengzhou University (Engineering Science),2015,36(06):30.[doi:10.3969/j. issn.1671 -6833.2015.06.006]
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表面铜离子印迹聚胺硅胶材料的吸附行为()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36卷
期数:
2015年06期
页码:
30
栏目:
出版日期:
2015-12-25

文章信息/Info

Title:
Adsorption behavior of surface ion-imprinted poly(allylamine)-silica material for Cu(II) from aqueous solution
作者:
范忠雷; 李瑞瑞
郑州大学化工与能源学院，河南郑州450001
Author(s):
FAN Zhonglei; Ll Ruirui
1.School of Materials Science and Engineering, Zhengzhou University,Zhengzhou 450001,China; 2.School of Chemical Engi-neering and Energy ,Zhengzhou University ,Zhengzhou 450001, China
关键词:
聚烯丙基胺; 硅胶; 表面印迹;  Cu( II)
Keywords:
poly( allylamine) ;  silica gel;  surface imprinting;  Cu(II )
DOI:
10.3969/j. issn.1671 -6833.2015.06.006
文献标志码:
A
摘要:
采用先物理负载后表面交联的方法合成铜离子印迹聚烯丙基胺硅胶材料(IP-PAA/SiOz),测定了IIP-PAA/SiO,对Cu( II)的吸附热力学、吸附动力学和选择性能.结果表明:IIP-PAA/SiO。对铜离子的吸附量和选择性随温度升高而减小;测定的吸附平衡数据可用Iangmuir方程拟合,计算得到过程的吸附烩变△为-12.29 kJ·moL.’，吉布斯自由能△G°为-16.5 ~ -17.05 kJ·moL-’,这也表明该吸附过程放热,因此,升高温度不利于吸附;吸附过程的吸附动力学可用拟二级动力学方程描述,拟合的吸附动力学常数和平衡吸附容量与溶液初始浓度有关.
Abstract:
Surface ion-imprinted poly( allylamine) -silica material ( IIP-PAA/SiO,) was synthesized by physi-cal load and surface imprinting technique. The thermodynamics，kinetics and selectivity of Cu( II) adsorptionon lIPPAA/SiO, were studied by static methods. The results showed that the adsorption capacity and selectiv-ity of lIP-PAA/SiO,decreased with the increase of the temperature. lIts adsorption equilibrium data for Cu( I)could be fit well by the Langmuir model. ’The adsorption thermodynamic parameters calculated showed that itsenthalpy change H° was - 12.29 kJ·moL"’ and △Gwas among - 16.5 kJ· moL’and - 17.05 kJ·moL"’, which indicated that the adsorption was exothermic spontaneous process and increasing temperaturewas not conducive to Cu( l) adsorption. Adsorption kinetics data of Cu( lI) on llP-PAA/SiO,could be de-scribed by pseudo-second-order kinetics equation，and the fitting adsorption rate constant and balanced copperadsorption capacity were related to initial solution concentration.

相似文献/References:

[1]范忠雷,马翔宇,李瑞瑞,等.吸附剂浓度对Cu(II)/ IIP-PAA/SiO2吸附体系的影响[J].郑州大学学报(工学版),2017,38(03):35.[doi:10.13705/j.issn.1671-6833.2017.03.003]
　Fan Zhonglei,Ma Xiangyu,Li Ruirui,et al.Effect of sorbent concentration on Cu(II) adsorption at surface ion-imprinted poly(allylamine)-silica material[J].Journal of Zhengzhou University (Engineering Science),2017,38(06):35.[doi:10.13705/j.issn.1671-6833.2017.03.003]

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