Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide
Organic fouling on membranes have been proven to be a major drawback of membrane technology. Since most membranes are made with polymers such as polypylene, polysuflone and polyvinylidene fluoride, they tend to be naturally hydrophobic. This hydrophobicity is the main reason which causes organ...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/157424 |
| _version_ | 1811695871092326400 |
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| author | Goh, Vanessa Ting Xuan |
| author2 | Darren Sun Delai |
| author_facet | Darren Sun Delai Goh, Vanessa Ting Xuan |
| author_sort | Goh, Vanessa Ting Xuan |
| collection | NTU |
| description | Organic fouling on membranes have been proven to be a major drawback of membrane technology.
Since most membranes are made with polymers such as polypylene, polysuflone and polyvinylidene
fluoride, they tend to be naturally hydrophobic. This hydrophobicity is the main reason which causes
organic fouling to occur in membranes and hence flux decline over time and permeate quality to
decrease significantly.
When fouling occurs on the membrane, chemical flushing is one of the commercial methods used to
remove organic foulants on the surface and within the pores. However, these harsh chemical conditions
usually damage the membranes over time and causes a decrease in membrane’s service life.
Surface modification is the creation of surfaces on membranes, which can influence surface properties
and make changes on the membrane surface without affecting the membrane’s features entirely. This
method coupled with electrospinning, which can produce highly porous nanofibers suitable for
modification, is proven to be a promising direction for membrane technology.
Therefore, this study will pivot on the fabrication of a super hydrophilic nanofiber membrane which
has antifouling properties. Furthermore, this modified surface will be used to achieve protection against
harsh chemical environments during chemical flushing. The fabrication of this polyvinylidene fluoride
membrane was attempted through electrospinning and modified using titanium dioxide through a novel
solvothermal method. |
| first_indexed | 2024-10-01T07:30:21Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/157424 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:30:21Z |
| publishDate | 2022 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1574242022-05-15T04:29:28Z Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide Goh, Vanessa Ting Xuan Darren Sun Delai School of Civil and Environmental Engineering DDSun@ntu.edu.sg Engineering::Environmental engineering Organic fouling on membranes have been proven to be a major drawback of membrane technology. Since most membranes are made with polymers such as polypylene, polysuflone and polyvinylidene fluoride, they tend to be naturally hydrophobic. This hydrophobicity is the main reason which causes organic fouling to occur in membranes and hence flux decline over time and permeate quality to decrease significantly. When fouling occurs on the membrane, chemical flushing is one of the commercial methods used to remove organic foulants on the surface and within the pores. However, these harsh chemical conditions usually damage the membranes over time and causes a decrease in membrane’s service life. Surface modification is the creation of surfaces on membranes, which can influence surface properties and make changes on the membrane surface without affecting the membrane’s features entirely. This method coupled with electrospinning, which can produce highly porous nanofibers suitable for modification, is proven to be a promising direction for membrane technology. Therefore, this study will pivot on the fabrication of a super hydrophilic nanofiber membrane which has antifouling properties. Furthermore, this modified surface will be used to achieve protection against harsh chemical environments during chemical flushing. The fabrication of this polyvinylidene fluoride membrane was attempted through electrospinning and modified using titanium dioxide through a novel solvothermal method. Bachelor of Engineering (Environmental Engineering) 2022-05-15T04:29:28Z 2022-05-15T04:29:28Z 2022 Final Year Project (FYP) Goh, V. T. X. (2022). Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/157424 https://hdl.handle.net/10356/157424 en EN-40 (ISP) application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Environmental engineering Goh, Vanessa Ting Xuan Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title | Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title_full | Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title_fullStr | Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title_full_unstemmed | Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title_short | Fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| title_sort | fabrication of superhydrophilic antifouling and chemical resistant nanofiber using titanium dioxide |
| topic | Engineering::Environmental engineering |
| url | https://hdl.handle.net/10356/157424 |
| work_keys_str_mv | AT gohvanessatingxuan fabricationofsuperhydrophilicantifoulingandchemicalresistantnanofiberusingtitaniumdioxide |