Removal of Congo red by polyethylenimine@Fe3O4 magnetic composites in batch mode
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40
Number of periods:
2019 02
Page number:
62-68
Column:
Public date:
2019-03-19
- Title:
- Removal of Congo red by polyethylenimine@Fe3O4 magnetic composites in batch mode
- Keywords:
- PEI@Fe3O4; adsorption; Congo red; regeneration
- CLC:
- -
- 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
- References:
- -
- Similar References:
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Last Update:
2019-03-24
