Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes
Graphene based nanosheets have been widely used as building blocks for fabrication of superior separation membrane for water processing. In particular, membranes made of reduced graphene oxide (rGO) show better stability compared with graphene oxide (GO). However, densely stacked of rGO often result...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2021-03-01
|
| Series: | Green Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952820300479 |
| _version_ | 1797976362077650944 |
|---|---|
| author | Shabin Mohammed Hanaa M. Hegab Ranwen Ou Shasha Liu Hongyu Ma Xiaofang Chen Tam Sridhar Huanting Wang |
| author_facet | Shabin Mohammed Hanaa M. Hegab Ranwen Ou Shasha Liu Hongyu Ma Xiaofang Chen Tam Sridhar Huanting Wang |
| author_sort | Shabin Mohammed |
| collection | DOAJ |
| description | Graphene based nanosheets have been widely used as building blocks for fabrication of superior separation membrane for water processing. In particular, membranes made of reduced graphene oxide (rGO) show better stability compared with graphene oxide (GO). However, densely stacked of rGO often results in low water flux. In this study, cellulose nanofibers (CNFs) were incorporated into the rGO laminates by vacuum filtration of dilute GO/CNF solution and thermal reduction at 150 °C for 1.5 h. The resulting rGO/CNF membrane was treated with oxygen plasma for 1–4 min to create nanopores on the membrane surface for the purpose of enhancing nanofiltration performance. The results showed that the optimum membrane performance was obtained by using the equal amount of GO (31.83 mg m-2) and CNFs accompanied by 3 min of plasma treatment, exhibiting a pure water permeance of 37.2 ± 3.9 L m-2 h-1 bar-1 maintaining a rejection above 90% for Acid Fuchsin (1.2×1.1 nm), Rose Bengal (1.5×1.2 nm) and Brilliant Blue (2.2×1.7 nm). |
| first_indexed | 2024-04-11T04:49:43Z |
| format | Article |
| id | doaj.art-39eb926399a1415f9b1e28b1ceb6c28e |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-04-11T04:49:43Z |
| publishDate | 2021-03-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Green Chemical Engineering |
| spelling | doaj.art-39eb926399a1415f9b1e28b1ceb6c28e2022-12-27T04:39:44ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282021-03-0121122131Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranesShabin Mohammed0Hanaa M. Hegab1Ranwen Ou2Shasha Liu3Hongyu Ma4Xiaofang Chen5Tam Sridhar6Huanting Wang7Department of Chemical Engineering, Monash University, VIC, 3800, AustraliaDepartment of Chemical Engineering, Monash University, VIC, 3800, AustraliaCollege of the Environment & Ecology, Xiamen University, Xiamen, Fujian, 361005, ChinaDepartment of Chemical Engineering, Monash University, VIC, 3800, AustraliaDepartment of Chemical Engineering, Monash University, VIC, 3800, AustraliaDepartment of Chemical Engineering, Monash University, VIC, 3800, AustraliaDepartment of Chemical Engineering, Monash University, VIC, 3800, AustraliaDepartment of Chemical Engineering, Monash University, VIC, 3800, Australia; Corresponding author.Graphene based nanosheets have been widely used as building blocks for fabrication of superior separation membrane for water processing. In particular, membranes made of reduced graphene oxide (rGO) show better stability compared with graphene oxide (GO). However, densely stacked of rGO often results in low water flux. In this study, cellulose nanofibers (CNFs) were incorporated into the rGO laminates by vacuum filtration of dilute GO/CNF solution and thermal reduction at 150 °C for 1.5 h. The resulting rGO/CNF membrane was treated with oxygen plasma for 1–4 min to create nanopores on the membrane surface for the purpose of enhancing nanofiltration performance. The results showed that the optimum membrane performance was obtained by using the equal amount of GO (31.83 mg m-2) and CNFs accompanied by 3 min of plasma treatment, exhibiting a pure water permeance of 37.2 ± 3.9 L m-2 h-1 bar-1 maintaining a rejection above 90% for Acid Fuchsin (1.2×1.1 nm), Rose Bengal (1.5×1.2 nm) and Brilliant Blue (2.2×1.7 nm).http://www.sciencedirect.com/science/article/pii/S2666952820300479Graphene oxideMembraneNanofiltrationCellulose nanofibersOxygen plasma treatment |
| spellingShingle | Shabin Mohammed Hanaa M. Hegab Ranwen Ou Shasha Liu Hongyu Ma Xiaofang Chen Tam Sridhar Huanting Wang Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes Green Chemical Engineering Graphene oxide Membrane Nanofiltration Cellulose nanofibers Oxygen plasma treatment |
| title | Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes |
| title_full | Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes |
| title_fullStr | Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes |
| title_full_unstemmed | Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes |
| title_short | Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes |
| title_sort | effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide cellulose nanofiber composite membranes |
| topic | Graphene oxide Membrane Nanofiltration Cellulose nanofibers Oxygen plasma treatment |
| url | http://www.sciencedirect.com/science/article/pii/S2666952820300479 |
| work_keys_str_mv | AT shabinmohammed effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT hanaamhegab effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT ranwenou effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT shashaliu effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT hongyuma effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT xiaofangchen effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT tamsridhar effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes AT huantingwang effectofoxygenplasmatreatmentonthenanofiltrationperformanceofreducedgrapheneoxidecellulosenanofibercompositemembranes |