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Title: Self-assembly of 2D-metal-organic framework/graphene oxide membranes as highly efficient adsorbents for the removal of Cs+ from aqueous solutions
Authors: Cheng, J
Liang, J
Dong, L
Chai, J
Zhao, N
Ullah, S 
Wang, H
Zhang, D
Imtiaz, S 
Shan, G
Zheng, G 
Issue Date: 2018
Source: RSC advances, 2018, v. 8, no. 71, p. 40813-40822
Abstract: The potential toxicity and irreversibility of radionuclide Cs place severe pressure on the natural environment, which has become one of the most forefront pollution problems in nuclear energy utilization. To solve this problem, novel self-assembled membranes consisting of two-dimensional (2D) metal-organic frameworks (MOFs) and graphene oxide (GO) were prepared by a facile filtration method, which can efficiently absorb Cs+ from aqueous solutions. The batch experimental results showed that the sorption of Cs+ on the GO/Co-MOF composite membrane was strongly dependent on the addition mass and the membrane compositions. Thus, the dominant interaction mechanism was interface or surface complexation and electrostatic interaction. The maximum sorption efficiency of Cs+ on GO/Co-MOF was 88.4% with 8 mg addition mass at pH = 7.0 and 299 K. Detailed FT-IR and XPS analyses suggested that the efficient synergistic effects in the unique architectures of GO/Co-MOF play an important role in the high sorption capacity of Cs+. The facile preparation method and the highly-efficient Cs+ removal behaviour of GO/Co-MOF make the novel membrane a promising candidate for the elimination of radionuclide contamination.
Publisher: Royal Society of Chemistry
Journal: RSC advances 
EISSN: 2046-2069
DOI: 10.1039/c8ra08410f
Rights: This journal is © The Royal Society of Chemistry 2018
This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence (
The following publication Cheng, J., Liang, J., Dong, L., Chai, J., Zhao, N., Ullah, S., ... & Zheng, G. (2018). Self-assembly of 2D-metal–organic framework/graphene oxide membranes as highly efficient adsorbents for the removal of Cs+ from aqueous solutions. RSC advances, 8(71), 40813-40822 is available at
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