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Chen M, Lu J, Gao J, Yu C, Xing W, Dai J, Meng M, Yan Y, Wu Y. Design of self-cleaning molecularly imprinted membrane with antibacterial ability for high-selectively separation of ribavirin. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119994] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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He M, Wang L, Zhang Z, Zhang Y, Zhu J, Wang X, Lv Y, Miao R. Stable Forward Osmosis Nanocomposite Membrane Doped with Sulfonated Graphene Oxide@Metal-Organic Frameworks for Heavy Metal Removal. ACS APPLIED MATERIALS & INTERFACES 2020; 12:57102-57116. [PMID: 33317267 DOI: 10.1021/acsami.0c17405] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A sulfonated graphene oxide@metal-organic framework-modified forward osmosis nanocomposite (SGO@UiO-66-TFN) membrane was developed to improve stability and heavy metal removal performance. An in situ growth method was applied to uniformly distribute UiO-66 nanomaterial with a frame structure on SGO nanosheets to form SGO@UiO-66 composite nanomaterial. This nanomaterial was then added to a polyamide layer using interfacial polymerization. The cross-linking between SGO@UiO-66 and m-phenylenediamine improved the stability of the nanomaterial in the membrane. Additionally, the water permeability was improved because of additional water channels introduced by SGO@UiO-66. SGO, with its lamellar structure, and UiO-66, with its frame structure, made the diffusion path of the solute more circuitous, which improved the heavy metal removal and salt rejection performances. Moreover, the hydrophilic layer of the SGO@UiO-66-TFN membrane could block contaminants and loosen the structure of the pollution layer, ensuring that the membrane maintained a high removal rate. The water flux and reverse solute flux of the SGO@UiO-66-TFN membrane reached 14.77 LMH and 2.95 gMH, and compared with the thin-film composite membrane, these values were increased by 41 and 64%, respectively. The membrane also demonstrated a good heavy metal ion removal performance. In 2 h, the heavy metal ion removal rate (2000 ppm Cu2+ and Pb2+) was greater than 99.4%, and in 10 h the removal rate was greater than 97.5%.
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Affiliation(s)
- Miaolu He
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Lei Wang
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Zhe Zhang
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Yan Zhang
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Jiani Zhu
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Xudong Wang
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Yongtao Lv
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
| | - Rui Miao
- Shaanxi Provincial Key Laboratory of Membrane Separation, Membrane Separation Research Institute, Key Laboratory of Environmental Engineering of Shaanxi Province, School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, No. 13 Yan Ta Road, Xi'an 710054, China
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