Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process
Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low e...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zhu, Haipeng [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Steering charge kinetics in W - Yue, Xin-Zheng ELSEVIER, 2019, the official journal of the North American Membrane Society, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:609 ; year:2020 ; day:15 ; month:08 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.memsci.2020.118225 |
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ELV050644297 |
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| 245 | 1 | 0 | |a Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. | ||
| 520 | |a Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. | ||
| 650 | 7 | |a PDMS membrane |2 Elsevier | |
| 650 | 7 | |a Anti-biofouling |2 Elsevier | |
| 650 | 7 | |a Butanol |2 Elsevier | |
| 650 | 7 | |a Fermentation coupled process |2 Elsevier | |
| 650 | 7 | |a Pervaporation |2 Elsevier | |
| 700 | 1 | |a Li, Xinran |4 oth | |
| 700 | 1 | |a Pan, Yang |4 oth | |
| 700 | 1 | |a Liu, Gongping |4 oth | |
| 700 | 1 | |a Wu, Hao |4 oth | |
| 700 | 1 | |a Jiang, Min |4 oth | |
| 700 | 1 | |a Jin, Wanqin |4 oth | |
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10.1016/j.memsci.2020.118225 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001037.pica (DE-627)ELV050644297 (ELSEVIER)S0376-7388(20)30803-6 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Zhu, Haipeng verfasserin aut Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. PDMS membrane Elsevier Anti-biofouling Elsevier Butanol Elsevier Fermentation coupled process Elsevier Pervaporation Elsevier Li, Xinran oth Pan, Yang oth Liu, Gongping oth Wu, Hao oth Jiang, Min oth Jin, Wanqin oth Enthalten in Elsevier Yue, Xin-Zheng ELSEVIER Steering charge kinetics in W 2019 the official journal of the North American Membrane Society New York, NY [u.a.] (DE-627)ELV002478420 volume:609 year:2020 day:15 month:08 pages:0 https://doi.org/10.1016/j.memsci.2020.118225 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.17 Katalyse VZ 58.50 Umwelttechnik: Allgemeines VZ 43.12 Umweltchemie VZ AR 609 2020 15 0815 0 |
| spelling |
10.1016/j.memsci.2020.118225 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001037.pica (DE-627)ELV050644297 (ELSEVIER)S0376-7388(20)30803-6 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Zhu, Haipeng verfasserin aut Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. PDMS membrane Elsevier Anti-biofouling Elsevier Butanol Elsevier Fermentation coupled process Elsevier Pervaporation Elsevier Li, Xinran oth Pan, Yang oth Liu, Gongping oth Wu, Hao oth Jiang, Min oth Jin, Wanqin oth Enthalten in Elsevier Yue, Xin-Zheng ELSEVIER Steering charge kinetics in W 2019 the official journal of the North American Membrane Society New York, NY [u.a.] (DE-627)ELV002478420 volume:609 year:2020 day:15 month:08 pages:0 https://doi.org/10.1016/j.memsci.2020.118225 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.17 Katalyse VZ 58.50 Umwelttechnik: Allgemeines VZ 43.12 Umweltchemie VZ AR 609 2020 15 0815 0 |
| allfields_unstemmed |
10.1016/j.memsci.2020.118225 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001037.pica (DE-627)ELV050644297 (ELSEVIER)S0376-7388(20)30803-6 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Zhu, Haipeng verfasserin aut Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. PDMS membrane Elsevier Anti-biofouling Elsevier Butanol Elsevier Fermentation coupled process Elsevier Pervaporation Elsevier Li, Xinran oth Pan, Yang oth Liu, Gongping oth Wu, Hao oth Jiang, Min oth Jin, Wanqin oth Enthalten in Elsevier Yue, Xin-Zheng ELSEVIER Steering charge kinetics in W 2019 the official journal of the North American Membrane Society New York, NY [u.a.] (DE-627)ELV002478420 volume:609 year:2020 day:15 month:08 pages:0 https://doi.org/10.1016/j.memsci.2020.118225 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.17 Katalyse VZ 58.50 Umwelttechnik: Allgemeines VZ 43.12 Umweltchemie VZ AR 609 2020 15 0815 0 |
| allfieldsGer |
10.1016/j.memsci.2020.118225 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001037.pica (DE-627)ELV050644297 (ELSEVIER)S0376-7388(20)30803-6 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Zhu, Haipeng verfasserin aut Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. PDMS membrane Elsevier Anti-biofouling Elsevier Butanol Elsevier Fermentation coupled process Elsevier Pervaporation Elsevier Li, Xinran oth Pan, Yang oth Liu, Gongping oth Wu, Hao oth Jiang, Min oth Jin, Wanqin oth Enthalten in Elsevier Yue, Xin-Zheng ELSEVIER Steering charge kinetics in W 2019 the official journal of the North American Membrane Society New York, NY [u.a.] (DE-627)ELV002478420 volume:609 year:2020 day:15 month:08 pages:0 https://doi.org/10.1016/j.memsci.2020.118225 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.17 Katalyse VZ 58.50 Umwelttechnik: Allgemeines VZ 43.12 Umweltchemie VZ AR 609 2020 15 0815 0 |
| allfieldsSound |
10.1016/j.memsci.2020.118225 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001037.pica (DE-627)ELV050644297 (ELSEVIER)S0376-7388(20)30803-6 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Zhu, Haipeng verfasserin aut Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. PDMS membrane Elsevier Anti-biofouling Elsevier Butanol Elsevier Fermentation coupled process Elsevier Pervaporation Elsevier Li, Xinran oth Pan, Yang oth Liu, Gongping oth Wu, Hao oth Jiang, Min oth Jin, Wanqin oth Enthalten in Elsevier Yue, Xin-Zheng ELSEVIER Steering charge kinetics in W 2019 the official journal of the North American Membrane Society New York, NY [u.a.] (DE-627)ELV002478420 volume:609 year:2020 day:15 month:08 pages:0 https://doi.org/10.1016/j.memsci.2020.118225 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.17 Katalyse VZ 58.50 Umwelttechnik: Allgemeines VZ 43.12 Umweltchemie VZ AR 609 2020 15 0815 0 |
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Fluorinated PDMS membrane with anti-biofouling property for in-situ biobutanol recovery from fermentation-pervaporation coupled process |
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Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. |
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Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. |
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Hydrophobic pervaporation membranes such as polydimethylsiloxane (PDMS) have shown great potential for biofuels recovery from fermentation process, which however face the challenge of biofouling issue. In this work, a new kind of anti-biofouling PDMS membrane was developed by creating an ultra-low energy surface via a facile crosslinking reaction between fluorosilane and PDMS. The chemical properties and wettability of the membrane surface were characterized by IR, XPS and contact angle measurements, in which the effect of chemical groups on the surface free energy was studied. The performance of PDMS membranes were evaluated in a typical acetone-butanol-ethanol (ABE) fermentation-pervaporation coupled process. The results demonstrated that the introduction of fluoroalkyl groups highly reduced the surface energy of PDMS membrane, thereby achieving excellent hydrophobicity and lipophobicity at the same time, and successfully alleviating microbial adhesion onto the membrane. As a result, the fluorinated PDMS membrane exhibited excellent anti-biofouling property, as well as much higher stabilized total flux (0.74 vs 0.36 kg/m2h) and ABE separation factor (21.8 vs 7.1) than the pristine PDMS membrane as coupling fed-batch fermentation for 140 h. In addition, a significant enhancement in ABE productivity (e.g., 51% higher than batch fermentation) was obtained in the fluorinated PDMS membrane coupled fed-batch fermentation process. |
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