The effect of polystyrene as a porogen on the fluoride ion adsorption of Zr(IV) surface-immobilized resin
The effect of polystyrene as a porogen on the fluoride ion adsorption of Zr(IV) surface-immobilized resin
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DOI：
10.1016/j.reactfunctpolym.2009.10.004
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发表时间：
2010-01-01
影响因子：
5.1
通讯作者：
Uezu, Kazuya
中科院分区：
文献类型：
--
作者：
Samatya, Saba;Mizuki, Hidenobu;Uezu, Kazuya
采用表面模板聚合法制备了一种新型吸附剂--锆固载树脂。该吸附剂由聚苯乙烯（PS）添加到树脂中制成，对水溶液中的氟离子具有很高的吸附容量。吸附容量随着PS浓度的增加而增加，这是因为通过添加聚苯乙烯作为致孔剂可以有效地增加比表面积。吸附等温线用Langmuir和Freundlich方程拟合。吸附等温线符合Langmuir方程。还使用柱法进行氟化物的去除。树脂中PS的存在对氟离子的吸附有显著影响。吸附在树脂上的氟化物用0.1M NaOH定量洗脱。(C)2009爱思唯尔有限公司版权所有。
A novel adsorbent, Zr(IV)-immobilized resin, was prepared by surface template polymerization. This adsorbent, prepared by adding polystyrene (PS) to resin, has a high adsorption capacity for the removal of fluoride ion from aqueous solutions. The adsorption capacity increased with rising PS concentration, since the specific surface area can be effectively increased by adding polystyrene as a porogen. The adsorption isotherm has been modeled by the Langmuir and Freundlich equations. The adsorption isotherms were well described by the Langmuir equation. The removal of fluoride was also carried out using a column method. The presence of PS in the resin exerted a remarkable influence on the uptake of fluoride ion. The fluoride adsorbed on the resin was quantitatively eluted with 0.1 M NaOH. (C) 2009 Elsevier Ltd. All rights reserved.