Preparation and Adsorption Properties of Cationic Hydrogel Bead

Run FANG; Yi-ting CHEN; Hua-zhong WU

doi:10.14028/j.cnki.1003-3726.2017.02.006

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Preparation and Adsorption Properties of Cationic Hydrogel Bead

更新时间：2022-09-06

- Preparation and Adsorption Properties of Cationic Hydrogel Bead
- Polymer Bulletin Vol. 30, Issue 2, Pages: 39-45(2017)
- 作者机构：
  
  1.闽江学院化学与化学工程系，福州 350108
  2.绿色染整福建省高校工程研究中心，福州 350108
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2017.02.006
  CLC：
- Published：01 February 2017，
  
  Received：05 August 2016，
  
  Revised：05 December 2016，
扫描看全文
Run FANG, Yi-ting CHEN, Hua-zhong WU. Preparation and Adsorption Properties of Cationic Hydrogel Bead. [J]. Polymer Bulletin 30(2):39-45(2017)
DOI：

Run FANG, Yi-ting CHEN, Hua-zhong WU. Preparation and Adsorption Properties of Cationic Hydrogel Bead. [J]. Polymer Bulletin 30(2):39-45(2017) DOI： 10.14028/j.cnki.1003-3726.2017.02.006.

摘要

以醛、酮、胺为原料，采用溶液缩聚和反相悬浮聚合制备了新型高吸附容量球形阳离子凝胶，对产物的分子结构和表面形貌进行了表征。通过吸附实验，研究了其对阴离子染料氨基黑10B和表面活性剂十二烷基苯磺酸钠（SDBS）的吸附效果，并讨论了吸附行为和机理。实验结果表明，球形阳离子凝胶具有较高的阳离子度和大量极性官能团，其对氨基黑和SDBS的吸附是基于静电引力和氢键等分子间力共同作用的结果，凝胶吸附效果随溶液pH的降低而升高。吸附质分子随溶液渗透进入球形凝胶并被吸附于凝胶内表面，故该吸附主要由吸附质在凝胶内部的扩散过程控制，具有较高的饱和吸附量。

Abstract

A novel cationic hydrogel bead with high adsorption capacity was prepared by solution polycondensation and inverse suspension polymerization using formaldehyde

acetone and triethylenetetramine as raw materials. The chemical structure and surface morphology of the hydrogel bead were characterized. The adsorption behavior and mechanism of hydrogel bead for anionic dye Acid Black 10B and surfactant sodium dodecyl benzene sulfonate (SDBS) from aqueous solution was investigated via batch experiments. Experimental results showed that cationic hydrogel bead had high cationicity and abundant polar functional groups. The adsorption was attributed to a combination of electrostatic attraction and intermolecular interactions

such as hydrogen bonding

and the adsorption efficiency increased with decreasing solution pH. During the adsorption

adsorbate molecule permeated into the bead and then was adsorbed onto the inner surface of the hygrogel. Therefore

the adsorption process was governed by the diffusion of the adsorbates inside the hydrogel matrix

which enabled a high adsorption capacity.

关键词

球形阳离子凝胶溶液缩聚反相悬浮聚合吸附

Keywords

Cationic hydrogel beadSolution polycondensationInverse suspension polycondensationAdsorption

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