Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes
In order to obtain high-flux antifouling nanofiltration membrane, a series of ICIC/ZnO/HBPA nanofiltration membranes were prepared by interfacial polymerization of 5-isocyanato-isophthaloyl chloride (ICIC) and hyperbranched polyamide (HBPA) on the surface of polyacrylonitrile (PAN) ultrafiltration m...
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| Format: | Article |
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Journal of Materials Engineering
2020-05-01
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| Series: | Cailiao gongcheng |
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| Online Access: | http://jme.biam.ac.cn/CN/Y2020/V48/I5/91 |
| _version_ | 1797966950902530048 |
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| author | ZHANG Xiao-guang DENG Hui-yu CHEN Qing-chun BANG Yu YAN Le-an NA Bing |
| author_facet | ZHANG Xiao-guang DENG Hui-yu CHEN Qing-chun BANG Yu YAN Le-an NA Bing |
| author_sort | ZHANG Xiao-guang |
| collection | DOAJ |
| description | In order to obtain high-flux antifouling nanofiltration membrane, a series of ICIC/ZnO/HBPA nanofiltration membranes were prepared by interfacial polymerization of 5-isocyanato-isophthaloyl chloride (ICIC) and hyperbranched polyamide (HBPA) on the surface of polyacrylonitrile (PAN) ultrafiltration membrane, the nano-ZnO was incorporated into the polyamide separation layer. The existence of ZnO is confirmed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The analysis results of water contact angle indicate that the membrane hydrophilicity is increased by incorporation of ZnO nanoparticles, the lowest water contact angle of the membrane is 22.7°. Compared with the membrane without ZnO, the flux and the salt rejection rate for NaCl, MgCl<sub>2</sub>, Na<sub>2</sub>SO<sub>4</sub> and MgSO<sub>4</sub> of the membrane containing ZnO increase. The largest flux of the ICIC/ZnO/HBPA membrane is about 102 L·m<sup>-2</sup>·h<sup>-1</sup>, which is nearly 2.6 times of the membrane without ZnO. The bacteriostasis of the membranes to <i>E. coli</i> is enhanced by incorporation more ZnO. Increasing the monomer content or prolonging the interfacial polymerization time is beneficial to increasing the salt rejection rate, but the order of the salt retention rate is changed. When HBPA is 0.8%, ICIC is 0.1%, content of ZnO is 0.02 g and reaction time is 10 min, the salt rejection rate for NaCl, MgCl<sub>2</sub>, Na<sub>2</sub>SO<sub>4</sub> and MgSO<sub>4</sub> of the prepared membrane are 60.8%, 96.4%, 95.1%, 96.7% and the flux is 53, 54.7, 53.7 L·m<sup>-2</sup>·h<sup>-1</sup>and 54.7 L·m<sup>-2</sup>·h<sup>-1</sup>, respectively. |
| first_indexed | 2024-04-11T02:23:26Z |
| format | Article |
| id | doaj.art-29d3b8c996c6487283c927d64282dc99 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:23:26Z |
| publishDate | 2020-05-01 |
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| series | Cailiao gongcheng |
| spelling | doaj.art-29d3b8c996c6487283c927d64282dc992023-01-02T23:08:43ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812020-05-01485919910.11868/j.issn.1001-4381.2019.00072520200412Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranesZHANG Xiao-guang0DENG Hui-yu1CHEN Qing-chun2BANG Yu3YAN Le-an4NA Bing5Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang 330013, China;In order to obtain high-flux antifouling nanofiltration membrane, a series of ICIC/ZnO/HBPA nanofiltration membranes were prepared by interfacial polymerization of 5-isocyanato-isophthaloyl chloride (ICIC) and hyperbranched polyamide (HBPA) on the surface of polyacrylonitrile (PAN) ultrafiltration membrane, the nano-ZnO was incorporated into the polyamide separation layer. The existence of ZnO is confirmed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The analysis results of water contact angle indicate that the membrane hydrophilicity is increased by incorporation of ZnO nanoparticles, the lowest water contact angle of the membrane is 22.7°. Compared with the membrane without ZnO, the flux and the salt rejection rate for NaCl, MgCl<sub>2</sub>, Na<sub>2</sub>SO<sub>4</sub> and MgSO<sub>4</sub> of the membrane containing ZnO increase. The largest flux of the ICIC/ZnO/HBPA membrane is about 102 L·m<sup>-2</sup>·h<sup>-1</sup>, which is nearly 2.6 times of the membrane without ZnO. The bacteriostasis of the membranes to <i>E. coli</i> is enhanced by incorporation more ZnO. Increasing the monomer content or prolonging the interfacial polymerization time is beneficial to increasing the salt rejection rate, but the order of the salt retention rate is changed. When HBPA is 0.8%, ICIC is 0.1%, content of ZnO is 0.02 g and reaction time is 10 min, the salt rejection rate for NaCl, MgCl<sub>2</sub>, Na<sub>2</sub>SO<sub>4</sub> and MgSO<sub>4</sub> of the prepared membrane are 60.8%, 96.4%, 95.1%, 96.7% and the flux is 53, 54.7, 53.7 L·m<sup>-2</sup>·h<sup>-1</sup>and 54.7 L·m<sup>-2</sup>·h<sup>-1</sup>, respectively.http://jme.biam.ac.cn/CN/Y2020/V48/I5/91icichbpaznonanofiltration membranefluxinterfacial polymerization |
| spellingShingle | ZHANG Xiao-guang DENG Hui-yu CHEN Qing-chun BANG Yu YAN Le-an NA Bing Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes Cailiao gongcheng icic hbpa zno nanofiltration membrane flux interfacial polymerization |
| title | Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes |
| title_full | Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes |
| title_fullStr | Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes |
| title_full_unstemmed | Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes |
| title_short | Preparation and characterization of 5-isocyanato-isophthaloyl chloride/ZnO/hyperbranched polyamide nanofiltration membranes |
| title_sort | preparation and characterization of 5 isocyanato isophthaloyl chloride zno hyperbranched polyamide nanofiltration membranes |
| topic | icic hbpa zno nanofiltration membrane flux interfacial polymerization |
| url | http://jme.biam.ac.cn/CN/Y2020/V48/I5/91 |
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