[1]韩润平,房丽燕,李小钰,等.聚乙烯亚胺负载四氧化三铁对刚果红的吸附性能[J].郑州大学学报(工学版),2019,40(02):62-68.[doi:10.13705/j.issn.1671-6833.2019.02.009]
 Han Runping,Fang Liyan,Li Xiaoyu,et al.Removal of Congo red by polyethylenimine@Fe3O4 magnetic composites in batch mode[J].Journal of Zhengzhou University (Engineering Science),2019,40(02):62-68.[doi:10.13705/j.issn.1671-6833.2019.02.009]
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聚乙烯亚胺负载四氧化三铁对刚果红的吸附性能()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
40卷
期数:
2019年02期
页码:
62-68
栏目:
出版日期:
2019-03-19

文章信息/Info

Title:
Removal of Congo red by polyethylenimine@Fe3O4 magnetic composites in batch mode
作者:
韩润平房丽燕李小钰韩旻媛张征
郑州大学化学与分子工程学院
Author(s):
Han Runping;Fang Liyan;Li Xiaoyu;Han Minyuan;Zhang Zheng
School of Chemistry and Molecular Engineering, Zhengzhou University
关键词:
PEI@Fe3O4吸附刚果红再生
Keywords:
PEI@Fe3O4adsorptionCongo redregeneration
DOI:
10.13705/j.issn.1671-6833.2019.02.009
文献标志码:
A
摘要:
采用表面负载法制得聚乙烯亚胺/四氧化三铁吸附剂(PEI@Fe3O4),以刚果红(Congo Red, CR)为吸附质,系统考察吸附剂用量、pH值、吸附时间和染料初始浓度等因素对吸附材料性能的影响。结果表明,CR在PEI@Fe3O4上的吸附受离子强度影响很大且利于吸附过程;303 KCR的最大吸附量为58.3 mg/g,等温吸附过程符合Redlich-Peterson方程且吸附过程符合Elovich动力学模型。解吸再生实验表明,吸附剂多次吸附/解吸附循环仍可维持吸附性能,显示出良好化学稳定性。因此,该吸附剂在染料废水CR去除方面具有良好应用前景。
Abstract:
Polyethylenimine@Fe3O4 magnetic composites (PEI@Fe3O4) were prepared by a surface overlay method and characterized. Its adsorption property toward Congo red (CR) from solution was performed in batch mode. The results showed that it was favor of CR adsorption onto PEI@Fe3O4 with the increase of ionic strength. Adsorption isotherms from experimental results were fitted well by Redlich-Peterson model and the adsorption quantity from experiment was up to 58.3 mg/g at 303 K. The kinetic process was best predicted by the Elovich model. Desorption and regeneration experiments showed that the adsorbent can retain its adsorption capacity even after adsorption/desorption cycles, showing excellent mechanical and chemical stabilities. It was implied that PEI@Fe3O4 be promising in removal of anionic dyes from wastewater

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更新日期/Last Update: 2019-03-24