Systematic hydrolysis of PIM-1 and electrospinning of hydrolyzed PIM-1 ultrafine fibers for an efficient removal of dye from water
buir.contributor.author | Uyar, Tamer | |
buir.contributor.orcid | Uyar, Tamer|0000-0002-3989-4481 | |
dc.citation.epage | 75 | en_US |
dc.citation.spage | 67 | en_US |
dc.citation.volumeNumber | 121 | en_US |
dc.contributor.author | Satilmis, B. | en_US |
dc.contributor.author | Budd, P. M. | en_US |
dc.contributor.author | Uyar, Tamer | en_US |
dc.date.accessioned | 2018-04-12T11:10:32Z | |
dc.date.available | 2018-04-12T11:10:32Z | |
dc.date.issued | 2017-12 | en_US |
dc.department | Institute of Materials Science and Nanotechnology (UNAM) | en_US |
dc.description.abstract | In this study, the Polymer of Intrinsic Microporosity (PIM-1) was systematically hydrolyzed in the presence of sodium hydroxide by varying the concentration of base, washing procedure and the time of the reaction. The chemical structure analyses confirmed that PIM-1 could be hydrolyzed by 65% up to 99% conversion depending on the synthesis procedure. The hydrolyzed PIM-1 samples have shown improved solubility which facilitates the fabrication of hydrolyzed PIM-1 ultrafine fibers by electrospinning technique. Extensive optimization studies were performed for the electrospinning of uniform and bead-free fibers from hydrolyzed PIM-1 with different degree of hydrolysis (65%, 86%, 94% and 99%). The electrospun hydrolysed PIM-1 fibrous samples have average fiber diameters (AFD) ranging from 0.58 ± 0.15 μm to 1.21 ± 0.15 μm, depending on the polymer concentration and applied electrospinning parameters. After electrospinning, self-standing hydrolyzed PIM-1 fibrous membranes were obtained which is useful as a filtering material for the adsorption of organic dyes from wastewater. Here, the capability of hydrolyzed PIM-1 electrospun fibrous membranes for the removal of dyes from aqueous solutions was investigated by using a batch adsorption process. The maximum adsorption capacity of fully hydrolyzed PIM-1 fibers was found 157 ± 16 mg g− 1 for Methylene Blue and 4 mg g− 1 for Congo red when the adsorption was conducted by 20 mg L− 1 dye solution without using any dilution. Moreover, maximum dye adsorption was also studied by using concentrated Methylene Blue solutions showing up to 272 mg g− 1 adsorption maximum. In addition, the self-standing fibrous hydrolyzed PIM-1 membrane was employed to separate Methylene Blue from an aqueous system by filtration without the necessity of additional driving force. The results indicate that hydrolyzed PIM-1 electrospun nanofibrous membranes can be a promising filtering material for wastewater treatment | en_US |
dc.description.provenance | Made available in DSpace on 2018-04-12T11:10:32Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2017 | en |
dc.embargo.release | 2019-12-01 | en_US |
dc.identifier.doi | 10.1016/j.reactfunctpolym.2017.10.019 | en_US |
dc.identifier.issn | 1381-5148 | |
dc.identifier.uri | http://hdl.handle.net/11693/37336 | |
dc.language.iso | English | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.isversionof | https://doi.org/10.1016/j.reactfunctpolym.2017.10.019 | en_US |
dc.source.title | Reactive and Functional Polymers | en_US |
dc.subject | Dye filtration | en_US |
dc.subject | Electrospinning | en_US |
dc.subject | Hydrolyzed PIM-1 | en_US |
dc.subject | Nanofibers | en_US |
dc.subject | Wastewater treatment | en_US |
dc.subject | Adsorption | en_US |
dc.subject | Aromatic compounds | en_US |
dc.subject | Azo dyes | en_US |
dc.subject | Chemical analysis | en_US |
dc.subject | Complexation | en_US |
dc.subject | Dyes | en_US |
dc.subject | Electrospinning | en_US |
dc.subject | Fibers | en_US |
dc.subject | Filtration | en_US |
dc.subject | Hydrolysis | en_US |
dc.subject | Microfiltration | en_US |
dc.subject | Nanofibers | en_US |
dc.subject | Solutions | en_US |
dc.subject | Spinning (fibers) | en_US |
dc.subject | Stripping (dyes) | en_US |
dc.subject | Wastewater treatment | en_US |
dc.subject | Average fiber diameters | en_US |
dc.subject | Dye filtration | en_US |
dc.subject | Electrospinning parameters | en_US |
dc.subject | Electrospinning techniques | en_US |
dc.subject | Electrospun fibrous membranes | en_US |
dc.subject | Electrospun nanofibrous membranes | en_US |
dc.subject | Hydrolyzed PIM-1 | en_US |
dc.subject | Methylene blue solution | en_US |
dc.subject | Fibrous membranes | en_US |
dc.title | Systematic hydrolysis of PIM-1 and electrospinning of hydrolyzed PIM-1 ultrafine fibers for an efficient removal of dye from water | en_US |
dc.type | Article | en_US |
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