An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption
Nanofibrous poly(vinylidene fluoride) (PVDF) sheets were produced by electrospinning and grafted with oxirane groups using radiation induced grafting of glycidyl methacrylate (GMA) followed by treatment with N-methyl-D-glucamine (NMDG). The NMDG density in the nanofibers was tuned by optimization of...
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Korean Fiber Society
2018
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| author | Nallappan, Madana Leela Nasef, Mohamed Mahmoud Teo, Ming Ting Ahmad, Arshad |
| author_facet | Nallappan, Madana Leela Nasef, Mohamed Mahmoud Teo, Ming Ting Ahmad, Arshad |
| author_sort | Nallappan, Madana Leela |
| collection | ePrints |
| description | Nanofibrous poly(vinylidene fluoride) (PVDF) sheets were produced by electrospinning and grafted with oxirane groups using radiation induced grafting of glycidyl methacrylate (GMA) followed by treatment with N-methyl-D-glucamine (NMDG). The NMDG density in the nanofibers was tuned by optimization of the immobilisation reaction variables using response surface methodology (RSM). The various properties of NMDG-containing nanofibers were evaluated using Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The NMDG-containing nanofibers were tested for boron selective removal from solutions. A maximum glucamine density yield of 2.2 mmol/g was obtained at 15 wt%, 87 oC, 64.7 min and 150 % for NMDG concentration, temperature, time and degree of grafting (DG), respectively. The applied procedure incorporating RSM was found to be highly effective in the optimization of covalently immobilised glucamine on the oxirane modified PVDF based-nanofibrous structure and in imparting an excellent combination of physico-chemical and boron retention properties. A complete boron removal was achieved in 100 mg/l boron solution adsorbent with a dosage of 0.6 g at pH 7 in 2 h time. This was accompanied by a promising reusability suitable for boron removal from solutions. |
| first_indexed | 2024-03-05T20:33:03Z |
| format | Article |
| id | utm.eprints-84511 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:33:03Z |
| publishDate | 2018 |
| publisher | Korean Fiber Society |
| record_format | dspace |
| spelling | utm.eprints-845112020-01-11T07:31:46Z http://eprints.utm.my/84511/ An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption Nallappan, Madana Leela Nasef, Mohamed Mahmoud Teo, Ming Ting Ahmad, Arshad TP Chemical technology Nanofibrous poly(vinylidene fluoride) (PVDF) sheets were produced by electrospinning and grafted with oxirane groups using radiation induced grafting of glycidyl methacrylate (GMA) followed by treatment with N-methyl-D-glucamine (NMDG). The NMDG density in the nanofibers was tuned by optimization of the immobilisation reaction variables using response surface methodology (RSM). The various properties of NMDG-containing nanofibers were evaluated using Fourier-transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The NMDG-containing nanofibers were tested for boron selective removal from solutions. A maximum glucamine density yield of 2.2 mmol/g was obtained at 15 wt%, 87 oC, 64.7 min and 150 % for NMDG concentration, temperature, time and degree of grafting (DG), respectively. The applied procedure incorporating RSM was found to be highly effective in the optimization of covalently immobilised glucamine on the oxirane modified PVDF based-nanofibrous structure and in imparting an excellent combination of physico-chemical and boron retention properties. A complete boron removal was achieved in 100 mg/l boron solution adsorbent with a dosage of 0.6 g at pH 7 in 2 h time. This was accompanied by a promising reusability suitable for boron removal from solutions. Korean Fiber Society 2018-08-01 Article PeerReviewed Nallappan, Madana Leela and Nasef, Mohamed Mahmoud and Teo, Ming Ting and Ahmad, Arshad (2018) An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption. Fibers and Polymers, 19 (8). pp. 1694-1705. ISSN 1229-9197 http://dx.doi.org/10.1007/s12221-018-8110-6 DOI:10.1007/s12221-018-8110-6 |
| spellingShingle | TP Chemical technology Nallappan, Madana Leela Nasef, Mohamed Mahmoud Teo, Ming Ting Ahmad, Arshad An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title | An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title_full | An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title_fullStr | An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title_full_unstemmed | An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title_short | An optimized covalent immobilization of glucamine on electrospun nanofibrous poly(vinylidene fluoride) sheets grafted with oxirane groups for higher boron adsorption |
| title_sort | optimized covalent immobilization of glucamine on electrospun nanofibrous poly vinylidene fluoride sheets grafted with oxirane groups for higher boron adsorption |
| topic | TP Chemical technology |
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