Mengmeng Cheng, Chenxue Yao, Yan Su, Jinglei Liu, Lijian Xu, Jidong Bu, Hua Wang and Shifeng Hou
1School of Chemistry and Chemical Engineering, National Engineering Research Center for Colloidal Materials, Shandong University, Jinan, 250100, China
2School of Public Health, Jining Medical University, Jining, 272013, China
Organic dyes and copper ions are the main industrial wastewater pollutants, which have potential threats to the environment and humans. Here, a novel β-cyclodextrin decorated reduced graphene oxide complex (rGO-β-CD) is synthesized by wet-chemical strategy. The characterization results confirm the successful synthesis of rGO-β-CD complex, which also exhibits high stability in polar solvent. In addition, the quantitative analysis reveals that rGO has excellent loading capacity for β-CD (up to 19 wt.%). Benefiting from the tightly stacked structure, the rejection rate of the rGO-β-CD membrane for rhodamine B (RhB), methyl orange (MO) and evans blue (EB) is nearly 100%. Furthermore, the membrane displays significantly lower copper ions permeation in mixed ion solutions, with a permeability of 0.05 mmol m-2 h-1. Importantly, the membrane exhibits specific adsorption for copper ions, resulting in a Zn2+/Cu2+ selectivity of 4.6. Based on the results, rGO-β-CD membrane was observed to be a promising material for wastewater treatment. This study provides a novel rGO-β-CD membrane to separate organic dyes and copper ions from wastewater.
Received: 31 May 2021
Revised: 19 Jul 2021
Accepted: 14 Aug 2021
Published online: 02 Jan 2022
Article type:
Research Paper
DOI:
10.30919/es8d603
Volume:
18
Page:
299-307
Citation:
Engineered Science, 2022, 18, 299-307
Permissions:
Copyright
Number of downloads:
3858
Citation Information:
17
Description:
Exceptional adsorption performance for organic dyes and Cu (II) ions from wastewater with the multi-....
Exceptional adsorption performance for organic dyes and Cu (II) ions from wastewater with the multi-mechanism membrane.
Supplementary Information:
This article is cited by 17 publications.
This article is cited by 17 publications.
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