Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal
Nanofiltration-Surfactant (NFS) membrane was prepared via dry/wet phase inversion technique. A new formulation of dope solutions with the present of key materials that surfactant were developed. The role of surfactant for producing low pressure Nanofiltration-surfactant (NFS) membrane was also disco...
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my-usim-ddms-12420 |
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uketd_dc |
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Universiti Sains Islam Malaysia |
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USIM Institutional Repository |
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English |
| topic |
Nanofiltration-Surfactant (NFS) cetyltrimethylammonium bromide (CTAB) sodium dodecyl sulfate (SDS) |
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Nanofiltration-Surfactant (NFS) cetyltrimethylammonium bromide (CTAB) sodium dodecyl sulfate (SDS) Sarah Husnaini Zainal Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| description |
Nanofiltration-Surfactant (NFS) membrane was prepared via dry/wet phase inversion technique. A new formulation of dope solutions with the present of key materials that surfactant were developed. The role of surfactant for producing low pressure Nanofiltration-surfactant (NFS) membrane was also discovered. Two types of surfactant from different categories had been used which are sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB) to investigated the effect on membrane performance as well as membrane properties. Addition of additive which is PEG 600 as pore former has been said to increase the membrane performance. Experimental data shows that, PEG 600 increase the water flux of about 214.72 L/m2h at 5 bar operating pressure of the least polymer concentration. Considering addition of surfactant will improve the membrane performance-properties, study on addition of different type of surfactant had also been discovered. In term of pure water permeation (PWP), addition anionic surfactant (SDS) in polymer solution gives high PWP from 127.36 L/m2h to 849.16 L/m2h. While, addition of cationic surfactant (CTAB) increase PWP up to 1370.33 L/m2h. In terms of permeation flux and rejection of salts, CTAB surfactant always show promising results with highest rejection of about 92%. Prior to testing, 3 types of dyes (methyl violet, methyl blue and acid orange) were used with three different concentrations (10ppm, 15ppm and 20ppm). SDS surfactant shows higher flux considering the structure of the membrane more porous and lower rejection of about 25.397 L/m2h and 50% respectively. Different with CTAB that shows opposite trends of low permeation flux, and high rejection of about 8.972 L/m2h and 99.9% respectively. Moreover, membranes were characterized by FTIR in order to determine the presence of surfactant in polymer solution as well as molecular orientation between materials used. To be in line with the experimental data, membrane structure was examined by SEM that shows significance different. Besides, thermal analysis of the membranes was studied using TGA analysis. Membrane without surfactant produced two stages of decomposition. Addition of surfactant show 3 stages of decomposition where the third stage show surfactant degradation. Thus, the highest polymer concentration with CTAB was the best polymer formulation of NFS membrane. |
| format |
Thesis |
| author |
Sarah Husnaini Zainal |
| author_facet |
Sarah Husnaini Zainal |
| author_sort |
Sarah Husnaini Zainal |
| title |
Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| title_short |
Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| title_full |
Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| title_fullStr |
Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| title_full_unstemmed |
Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal |
| title_sort |
preparation and characterization of nanofiltration-surfactant (nfs) membrane for dyes removal |
| granting_institution |
Universiti Sains Islam Malaysia |
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1812444638051565568 |
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my-usim-ddms-124202024-05-29T18:16:21Z Preparation and Characterization of Nanofiltration-Surfactant (NFS) Membrane for Dyes Removal Sarah Husnaini Zainal Nanofiltration-Surfactant (NFS) membrane was prepared via dry/wet phase inversion technique. A new formulation of dope solutions with the present of key materials that surfactant were developed. The role of surfactant for producing low pressure Nanofiltration-surfactant (NFS) membrane was also discovered. Two types of surfactant from different categories had been used which are sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB) to investigated the effect on membrane performance as well as membrane properties. Addition of additive which is PEG 600 as pore former has been said to increase the membrane performance. Experimental data shows that, PEG 600 increase the water flux of about 214.72 L/m2h at 5 bar operating pressure of the least polymer concentration. Considering addition of surfactant will improve the membrane performance-properties, study on addition of different type of surfactant had also been discovered. In term of pure water permeation (PWP), addition anionic surfactant (SDS) in polymer solution gives high PWP from 127.36 L/m2h to 849.16 L/m2h. While, addition of cationic surfactant (CTAB) increase PWP up to 1370.33 L/m2h. In terms of permeation flux and rejection of salts, CTAB surfactant always show promising results with highest rejection of about 92%. Prior to testing, 3 types of dyes (methyl violet, methyl blue and acid orange) were used with three different concentrations (10ppm, 15ppm and 20ppm). SDS surfactant shows higher flux considering the structure of the membrane more porous and lower rejection of about 25.397 L/m2h and 50% respectively. Different with CTAB that shows opposite trends of low permeation flux, and high rejection of about 8.972 L/m2h and 99.9% respectively. Moreover, membranes were characterized by FTIR in order to determine the presence of surfactant in polymer solution as well as molecular orientation between materials used. To be in line with the experimental data, membrane structure was examined by SEM that shows significance different. Besides, thermal analysis of the membranes was studied using TGA analysis. Membrane without surfactant produced two stages of decomposition. Addition of surfactant show 3 stages of decomposition where the third stage show surfactant degradation. Thus, the highest polymer concentration with CTAB was the best polymer formulation of NFS membrane. Universiti Sains Islam Malaysia 2015-08 Thesis en https://oarep.usim.edu.my/handle/123456789/12420 https://oarep.usim.edu.my/bitstreams/ae2900d0-51d0-4a1c-92fd-6efc329ed5da/download 8a4605be74aa9ea9d79846c1fba20a33 https://oarep.usim.edu.my/bitstreams/766886ac-4dad-4c26-a4d9-151546116c48/download cd96270522ca636b081a8b4296f4e38f https://oarep.usim.edu.my/bitstreams/03d8d0a3-e8bf-4272-955f-dea3f19368d3/download c5758ac5b3d007d8f6a32cd82221df2e https://oarep.usim.edu.my/bitstreams/9a2ddd7d-ec01-40cf-be28-f1cc7e5b76ed/download 56d2bca14058a8230342637b5ed8b921 https://oarep.usim.edu.my/bitstreams/6e7c442e-6346-4f8b-bef8-48a06e5e0c86/download 6070241009f420cc0d63b8710dfbfb0a https://oarep.usim.edu.my/bitstreams/c5614cbc-1e6d-48e6-98c4-64c66faf9bdf/download 753a95d6445515ff06957f678dced688 https://oarep.usim.edu.my/bitstreams/61f6dd4a-8880-4fbd-915a-09b744bbc9f8/download 7c3b493608169995d90b2ca92f7024c3 https://oarep.usim.edu.my/bitstreams/01745b1f-1ca1-4694-9037-3e82a81d49c4/download 3573e1fc2cd57f174dbf199d5bc4001d https://oarep.usim.edu.my/bitstreams/549d5994-b2dc-4dbd-9d88-7158becf5692/download 90c65e055d5847ae2ff7ba8360a6de14 https://oarep.usim.edu.my/bitstreams/5fbfa679-c063-481f-bd38-388ccbf1bf8d/download 68b329da9893e34099c7d8ad5cb9c940 https://oarep.usim.edu.my/bitstreams/5c0d56cc-71a7-4b64-bda6-b16c1fb56527/download 81f313f5ba2944521f074c3423c745d7 https://oarep.usim.edu.my/bitstreams/04bbf7bd-6314-4f81-b967-7bbc392b0a59/download 8d1b69dd9bdc9df4a8073c7a8193c7af https://oarep.usim.edu.my/bitstreams/371a0d83-aff5-4ecb-9e11-854c6fbe0741/download 31ceea13eeddff875e44ad97b9a47e1b https://oarep.usim.edu.my/bitstreams/fe105090-7654-4b21-8b44-072fb7335ade/download 46dab46279ab4ecb929adb971a632731 https://oarep.usim.edu.my/bitstreams/0a68b752-f755-4ca7-84b2-a501a72af19e/download 25f631d04728fe53b5b486a25039069d https://oarep.usim.edu.my/bitstreams/401c8ca7-f485-4463-9567-171a14ed9a8f/download e1c06d85ae7b8b032bef47e42e4c08f9 https://oarep.usim.edu.my/bitstreams/87958ceb-6b7d-457a-8930-a66822958116/download 36c6f0b2061da514c400c0bc2749b5cf Nanofiltration-Surfactant (NFS) cetyltrimethylammonium bromide (CTAB) sodium dodecyl sulfate (SDS) |