Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously
Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns ab...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Khanzada, Noman Khalid [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer 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:643 ; year:2022 ; day:1 ; month:03 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.memsci.2021.120043 |
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| 245 | 1 | 0 | |a Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously |
| 264 | 1 | |c 2022transfer abstract | |
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| 520 | |a Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. | ||
| 520 | |a Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. | ||
| 650 | 7 | |a Surface modification |2 Elsevier | |
| 650 | 7 | |a Water reuse |2 Elsevier | |
| 650 | 7 | |a NDMA Rejection |2 Elsevier | |
| 650 | 7 | |a Graphene oxide |2 Elsevier | |
| 700 | 1 | |a Deka, Bhaskar Jyoti |4 oth | |
| 700 | 1 | |a Kharraz, Jehad A. |4 oth | |
| 700 | 1 | |a Wong, Pak Wai |4 oth | |
| 700 | 1 | |a Jassby, David |4 oth | |
| 700 | 1 | |a Rehman, Shazia |4 oth | |
| 700 | 1 | |a Leu, Shao-Yuan |4 oth | |
| 700 | 1 | |a Kumar, Manish |4 oth | |
| 700 | 1 | |a An, Alicia Kyoungjin |4 oth | |
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10.1016/j.memsci.2021.120043 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001615.pica (DE-627)ELV056207778 (ELSEVIER)S0376-7388(21)00983-2 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Khanzada, Noman Khalid verfasserin aut Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Surface modification Elsevier Water reuse Elsevier NDMA Rejection Elsevier Graphene oxide Elsevier Deka, Bhaskar Jyoti oth Kharraz, Jehad A. oth Wong, Pak Wai oth Jassby, David oth Rehman, Shazia oth Leu, Shao-Yuan oth Kumar, Manish oth An, Alicia Kyoungjin 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:643 year:2022 day:1 month:03 pages:0 https://doi.org/10.1016/j.memsci.2021.120043 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 643 2022 1 0301 0 |
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10.1016/j.memsci.2021.120043 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001615.pica (DE-627)ELV056207778 (ELSEVIER)S0376-7388(21)00983-2 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Khanzada, Noman Khalid verfasserin aut Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Surface modification Elsevier Water reuse Elsevier NDMA Rejection Elsevier Graphene oxide Elsevier Deka, Bhaskar Jyoti oth Kharraz, Jehad A. oth Wong, Pak Wai oth Jassby, David oth Rehman, Shazia oth Leu, Shao-Yuan oth Kumar, Manish oth An, Alicia Kyoungjin 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:643 year:2022 day:1 month:03 pages:0 https://doi.org/10.1016/j.memsci.2021.120043 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 643 2022 1 0301 0 |
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10.1016/j.memsci.2021.120043 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001615.pica (DE-627)ELV056207778 (ELSEVIER)S0376-7388(21)00983-2 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Khanzada, Noman Khalid verfasserin aut Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Surface modification Elsevier Water reuse Elsevier NDMA Rejection Elsevier Graphene oxide Elsevier Deka, Bhaskar Jyoti oth Kharraz, Jehad A. oth Wong, Pak Wai oth Jassby, David oth Rehman, Shazia oth Leu, Shao-Yuan oth Kumar, Manish oth An, Alicia Kyoungjin 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:643 year:2022 day:1 month:03 pages:0 https://doi.org/10.1016/j.memsci.2021.120043 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 643 2022 1 0301 0 |
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10.1016/j.memsci.2021.120043 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001615.pica (DE-627)ELV056207778 (ELSEVIER)S0376-7388(21)00983-2 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Khanzada, Noman Khalid verfasserin aut Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Surface modification Elsevier Water reuse Elsevier NDMA Rejection Elsevier Graphene oxide Elsevier Deka, Bhaskar Jyoti oth Kharraz, Jehad A. oth Wong, Pak Wai oth Jassby, David oth Rehman, Shazia oth Leu, Shao-Yuan oth Kumar, Manish oth An, Alicia Kyoungjin 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:643 year:2022 day:1 month:03 pages:0 https://doi.org/10.1016/j.memsci.2021.120043 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 643 2022 1 0301 0 |
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10.1016/j.memsci.2021.120043 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001615.pica (DE-627)ELV056207778 (ELSEVIER)S0376-7388(21)00983-2 DE-627 ger DE-627 rakwb eng 540 VZ 35.17 bkl 58.50 bkl 43.12 bkl Khanzada, Noman Khalid verfasserin aut Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. Surface modification Elsevier Water reuse Elsevier NDMA Rejection Elsevier Graphene oxide Elsevier Deka, Bhaskar Jyoti oth Kharraz, Jehad A. oth Wong, Pak Wai oth Jassby, David oth Rehman, Shazia oth Leu, Shao-Yuan oth Kumar, Manish oth An, Alicia Kyoungjin 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:643 year:2022 day:1 month:03 pages:0 https://doi.org/10.1016/j.memsci.2021.120043 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 643 2022 1 0301 0 |
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Khanzada, Noman Khalid |
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Elucidating the role of graphene oxide layers in enhancing N-Nitrosodimethylamine (NDMA) rejection and antibiofouling property of RO membrane simultaneously |
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Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. |
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Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. |
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Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance. |
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In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Water reclamation using reverse osmosis (RO) has become an indispensable component of the urban water supply system. However, the removal of low molecular weight contaminants of emerging concerns such as N-Nitrosodimethylamine (NDMA) from RO is challenging, thereby raising serious safety concerns about reclaimed water. Herein we modify RO membrane with graphene oxide (GO) using polydopamine (PDA) as crosslinking agent. The modification of commercial RO membrane via co-deposition of PDA-GO subsequently resulted in superior NDMA rejection (83 ± 3.57%) when compared with the membranes modified via GO, PDA, GO on PDA impregnated surface, and pristine RO. The narrow interlayer spacing of the GO (0.36 nm), attributed to its partial reduction occurred due to thin PDA layer formation on its both sides, exhibited enhanced sieving effect in addition to the coverage of free–volume hole-size of the polyamide layers which offered hindrance to NDMA permeation. In addition, CFU-enumeration and confocal laser scanning microscopy revealed that the partial reduction of GO did not significantly affect its associated antibacterial property when compared with the membrane modified via GO after PDA impregnation. However, enhanced antibiofouling performance was observed using optical coherence tomography (OCT) employed in this study for in-situ, real-time, and non-destructive fouling monitoring with better flux performance.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Surface modification</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Water reuse</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">NDMA Rejection</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Graphene oxide</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Deka, Bhaskar Jyoti</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kharraz, Jehad A.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Wong, Pak Wai</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Jassby, David</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Rehman, Shazia</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Leu, Shao-Yuan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Kumar, Manish</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">An, Alicia Kyoungjin</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Yue, Xin-Zheng ELSEVIER</subfield><subfield code="t">Steering charge kinetics in W</subfield><subfield code="d">2019</subfield><subfield code="d">the official journal of the North American Membrane Society</subfield><subfield code="g">New York, NY [u.a.]</subfield><subfield code="w">(DE-627)ELV002478420</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:643</subfield><subfield code="g">year:2022</subfield><subfield code="g">day:1</subfield><subfield code="g">month:03</subfield><subfield code="g">pages:0</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.memsci.2021.120043</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">35.17</subfield><subfield code="j">Katalyse</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">58.50</subfield><subfield code="j">Umwelttechnik: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">43.12</subfield><subfield code="j">Umweltchemie</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">643</subfield><subfield code="j">2022</subfield><subfield code="b">1</subfield><subfield code="c">0301</subfield><subfield code="h">0</subfield></datafield></record></collection>
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