Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination
© 2017 Elsevier B.V. An exfoliated hydrotalcite/graphene oxide (EHT/GO) hybrid nanosheet was synthesized via flocculation deposition and could be uniformly dispersed in PEI solution to be used as aqueous phase for interfacial polymerization. The process of EHT/GO flocculation and deflocculation was...
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| Format: | Journal Article |
| Published: |
Elsevier BV
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/70836 |
| _version_ | 1848762317907427328 |
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| author | Wang, X. Wang, H. Wang, Y. Gao, J. Liu, Jian Zhang, Y. |
| author_facet | Wang, X. Wang, H. Wang, Y. Gao, J. Liu, Jian Zhang, Y. |
| author_sort | Wang, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 Elsevier B.V. An exfoliated hydrotalcite/graphene oxide (EHT/GO) hybrid nanosheet was synthesized via flocculation deposition and could be uniformly dispersed in PEI solution to be used as aqueous phase for interfacial polymerization. The process of EHT/GO flocculation and deflocculation was analyzed to gain a better understanding of its emerging mechanism. The thin-film selective layers of the hybrid membranes were formed via interfacial polymerization on the surface of PES substrate. Typically, trimesoyl chloride (TMC, 1% wt) and branched polyethyleneimine (PEI, 1.5% wt) were used as the organic phase monomer and the aqueous phase monomer. Afterwards, SEM and atomic force microscopy (AFM) were employed to characterize the morphology of the hybrid membranes and FTIR, TGA, X-ray photoelectron spectroscopy (XPS) were utilized to detect surface chemical composition of the resultant membranes. The result showed that incorporation of EHT/GO into a polyamide (PA) membrane could effectively enhance its water flux, reaching 26L/(m2h) at 0.8MPa. The salts rejection of all membranes followed the sequence: MgCl2>NaCl>MgSO4>Na2SO4, confirming that the membranes were positively charged. The rejection of EHT/GO membrane for MgCl2could reach 97.0%, which owned superior water softening performance. |
| first_indexed | 2025-11-14T10:45:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-70836 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:45:39Z |
| publishDate | 2017 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-708362018-12-13T09:31:47Z Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination Wang, X. Wang, H. Wang, Y. Gao, J. Liu, Jian Zhang, Y. © 2017 Elsevier B.V. An exfoliated hydrotalcite/graphene oxide (EHT/GO) hybrid nanosheet was synthesized via flocculation deposition and could be uniformly dispersed in PEI solution to be used as aqueous phase for interfacial polymerization. The process of EHT/GO flocculation and deflocculation was analyzed to gain a better understanding of its emerging mechanism. The thin-film selective layers of the hybrid membranes were formed via interfacial polymerization on the surface of PES substrate. Typically, trimesoyl chloride (TMC, 1% wt) and branched polyethyleneimine (PEI, 1.5% wt) were used as the organic phase monomer and the aqueous phase monomer. Afterwards, SEM and atomic force microscopy (AFM) were employed to characterize the morphology of the hybrid membranes and FTIR, TGA, X-ray photoelectron spectroscopy (XPS) were utilized to detect surface chemical composition of the resultant membranes. The result showed that incorporation of EHT/GO into a polyamide (PA) membrane could effectively enhance its water flux, reaching 26L/(m2h) at 0.8MPa. The salts rejection of all membranes followed the sequence: MgCl2>NaCl>MgSO4>Na2SO4, confirming that the membranes were positively charged. The rejection of EHT/GO membrane for MgCl2could reach 97.0%, which owned superior water softening performance. 2017 Journal Article http://hdl.handle.net/20.500.11937/70836 10.1016/j.desal.2017.05.012 Elsevier BV restricted |
| spellingShingle | Wang, X. Wang, H. Wang, Y. Gao, J. Liu, Jian Zhang, Y. Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title | Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title_full | Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title_fullStr | Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title_full_unstemmed | Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title_short | Hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| title_sort | hydrotalcite/graphene oxide hybrid nanosheets functionalized nanofiltration membrane for desalination |
| url | http://hdl.handle.net/20.500.11937/70836 |