Synthesis of new sulfhydryl flocculant PAM-GSH and its performance in removing Mn (Ⅱ)

ZHANG Peng; WANG Yulu; DING Wenjie; ZHAO Wenlin

doi:10.11949/j.issn.0438-1157.20181486

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Synthesis of new sulfhydryl flocculant PAM-GSH and its performance in removing Mn (Ⅱ)

Energy and environmental engineering | 更新时间：2026-07-24

- Synthesis of new sulfhydryl flocculant PAM-GSH and its performance in removing Mn (Ⅱ)
- CIESC Journal Vol. 70, Issue 5, Pages: 1932-1941(2019)
- 作者机构：
  
  湖南科技大学土木工程学院，湖南湘潭 411201
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181486
  CLC： TU 991.22
- Received：17 December 2018，
  
  Revised：2019-02-08，
  
  Online First：24 July 2026，
  
  Published：05 May 2019
- 稿件说明：
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张鹏, 王雨露, 丁文杰, 赵文麟. 新型巯基絮凝剂PAM-GSH的合成及除Mn(Ⅱ)性能研究[J]. 化工学报, 2019, 70(5): 1932-1941

ZHANG Peng, WANG Yulu, DING Wenjie, ZHAO Wenlin. Synthesis of new sulfhydryl flocculant PAM-GSH and its performance in removing Mn (Ⅱ)[J]. CIESC Journal, 2019, 70(5): 1932-1941
张鹏, 王雨露, 丁文杰, 赵文麟. 新型巯基絮凝剂PAM-GSH的合成及除Mn(Ⅱ)性能研究[J]. 化工学报, 2019, 70(5): 1932-1941 DOI： 10.11949/j.issn.0438-1157.20181486.

ZHANG Peng, WANG Yulu, DING Wenjie, ZHAO Wenlin. Synthesis of new sulfhydryl flocculant PAM-GSH and its performance in removing Mn (Ⅱ)[J]. CIESC Journal, 2019, 70(5): 1932-1941 DOI： 10.11949/j.issn.0438-1157.20181486.

摘要

以聚丙烯酰胺(PAM)为主链骨架，谷胱甘肽(GSH)为接枝单体，依据Mannich反应机理，在甲醛参与下缩合，将GSH接枝到PAM上，合成具有多种配位基团的絮凝剂聚丙烯酰胺-谷胱甘肽(PAM-GSH)。傅里叶红外光谱(FTIR)、扫描电镜与能谱分析(SEM-EDS)和差热热重(TG-DSC)表征结果表明：PAM-GSH是一种巯基官能团化的PAM，形貌褶皱多孔隙，呈网状结构，增强了其吸附和网捕卷扫能力，并且在26~200℃范围，具有良好的热稳定性。混凝实验研究表明：当PAM-GSH投加量为84.48 mg/L、Mn(Ⅱ)浓度为10.0 mg/L、初始浊度为10.40NTU、初始pH为9.0时，对水样中的Mn(Ⅱ)去除效果最优；K(Ⅰ)、Al(Ⅲ)两种阳离子的存在对Mn(Ⅱ)的去除有抑制作用。Zeta电位分析表明：PAM-GSH絮凝机制主要是螯合作用、吸附架桥和网捕卷扫作用。

Abstract

Polyacrylamide (PAM) was used as the main chain skeleton

glutathione (GSH) was used as the grafting monomer. According to the Mannich reaction mechanism

condensation was carried out under the participation of formaldehyde

GSH was grafted onto PAM

and the polyacrylamide-glutathione (PAM-GSH) containing multiple coordinating groups was finally prepared. The PAM-GSH was characterized by FTIR

SEM-EDS and TG-DSC. The results showed that PAM-GSH is a thiol-functionalized PAM with pleated and porous pores. It has a network structure

which enhances its adsorption and sweeping net catching ability

and has good thermal stability in the range of 26—200℃. The coagulation experiment indicated that when the dosage of PAM-GSH was 84.48 mg/L

the concentration of Mn(Ⅱ) was 10.0 mg/L

the initial turbidity was 10.40NTU

and the initial pH value was 9.0

the best removal efficiency of Mn(Ⅱ) could be achieved. The existence of K(Ⅰ) and Al(Ⅲ) inhibited the removal of Mn(Ⅱ). Zeta potential analysis showed that the flocculation mechanism of PAM-GSH was mainly chelation

adsorption bridging and sweep netting.

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