Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature
The effect of changes in non-solvent coagulation bath temperature on surface properties such as morphology and hydrophilicity were investigated in multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO)-based polyvinylidene fluoride (PVDF) membranes. The properties of pores (size, shape, and...
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| Format: | Article |
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MDPI AG
2021-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/9/2269 |
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| author | Jungryeong Chae Taeuk Lim Hao Cheng Wonsuk Jung |
| author_facet | Jungryeong Chae Taeuk Lim Hao Cheng Wonsuk Jung |
| author_sort | Jungryeong Chae |
| collection | DOAJ |
| description | The effect of changes in non-solvent coagulation bath temperature on surface properties such as morphology and hydrophilicity were investigated in multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO)-based polyvinylidene fluoride (PVDF) membranes. The properties of pores (size, shape, and number) as well as membrane hydrophilicity were investigated using field emission scanning electron microscopy, Raman spectroscopy, optical microscopy, water contact angle, and water flux. Results showed that the pore size increased with an increase in coagulation temperature. The hydrophilic functional groups of the added carbon materials increased the solvent and non-solvent diffusion rate, which significantly increased the number of pores by 700% as compared to pure PVDF. Additionally, these functional groups changed the hydrophobic properties of pure PVDF into hydrophilic properties. |
| first_indexed | 2024-03-10T07:22:14Z |
| format | Article |
| id | doaj.art-7fafbc663a4c4bdba5162aee946182fb |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T07:22:14Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-7fafbc663a4c4bdba5162aee946182fb2023-11-22T14:29:54ZengMDPI AGNanomaterials2079-49912021-08-01119226910.3390/nano11092269Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent TemperatureJungryeong Chae0Taeuk Lim1Hao Cheng2Wonsuk Jung3School of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaSchool of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaSchool of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaSchool of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaThe effect of changes in non-solvent coagulation bath temperature on surface properties such as morphology and hydrophilicity were investigated in multi-walled carbon nanotubes (MWCNTs) and graphene oxide (GO)-based polyvinylidene fluoride (PVDF) membranes. The properties of pores (size, shape, and number) as well as membrane hydrophilicity were investigated using field emission scanning electron microscopy, Raman spectroscopy, optical microscopy, water contact angle, and water flux. Results showed that the pore size increased with an increase in coagulation temperature. The hydrophilic functional groups of the added carbon materials increased the solvent and non-solvent diffusion rate, which significantly increased the number of pores by 700% as compared to pure PVDF. Additionally, these functional groups changed the hydrophobic properties of pure PVDF into hydrophilic properties.https://www.mdpi.com/2079-4991/11/9/2269multi-walled carbon nanotubes (MWCNTs)graphene oxide (GO)polycinylidene fluoride (PVDF)surface morphologyphase separationcoagulation temperature |
| spellingShingle | Jungryeong Chae Taeuk Lim Hao Cheng Wonsuk Jung Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature Nanomaterials multi-walled carbon nanotubes (MWCNTs) graphene oxide (GO) polycinylidene fluoride (PVDF) surface morphology phase separation coagulation temperature |
| title | Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature |
| title_full | Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature |
| title_fullStr | Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature |
| title_full_unstemmed | Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature |
| title_short | Modification of the Surface Morphology and Properties of Graphene Oxide and Multi-Walled Carbon Nanotube-Based Polyvinylidene Fluoride Membranes According to Changes in Non-Solvent Temperature |
| title_sort | modification of the surface morphology and properties of graphene oxide and multi walled carbon nanotube based polyvinylidene fluoride membranes according to changes in non solvent temperature |
| topic | multi-walled carbon nanotubes (MWCNTs) graphene oxide (GO) polycinylidene fluoride (PVDF) surface morphology phase separation coagulation temperature |
| url | https://www.mdpi.com/2079-4991/11/9/2269 |
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