The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption
A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from...
Ausführliche Beschreibung
Autor*in: |
Zhang, Shangying [verfasserIn] |
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Englisch |
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2022transfer abstract |
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Enthalten in: Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface - Ren, Guoqing ELSEVIER, 2018, an international journal devoted to the principles and applications of colloid and interface science, Amsterdam [u.a.] |
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volume:634 ; year:2022 ; day:5 ; month:02 ; pages:0 |
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DOI / URN: |
10.1016/j.colsurfa.2021.127949 |
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520 | |a A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. | ||
520 | |a A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. | ||
650 | 7 | |a Porogen |2 Elsevier | |
650 | 7 | |a Porous hollow microspheres |2 Elsevier | |
650 | 7 | |a Polyethylene glycol |2 Elsevier | |
650 | 7 | |a Adsorption material |2 Elsevier | |
650 | 7 | |a Polysulfone |2 Elsevier | |
700 | 1 | |a Dai, Fengna |4 oth | |
700 | 1 | |a Wang, Qi |4 oth | |
700 | 1 | |a Qian, Guangtao |4 oth | |
700 | 1 | |a Chen, Chunhai |4 oth | |
700 | 1 | |a Yu, Youhai |4 oth | |
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10.1016/j.colsurfa.2021.127949 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001621.pica (DE-627)ELV056292163 (ELSEVIER)S0927-7757(21)01818-5 DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Zhang, Shangying verfasserin aut The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. Porogen Elsevier Porous hollow microspheres Elsevier Polyethylene glycol Elsevier Adsorption material Elsevier Polysulfone Elsevier Dai, Fengna oth Wang, Qi oth Qian, Guangtao oth Chen, Chunhai oth Yu, Youhai oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:634 year:2022 day:5 month:02 pages:0 https://doi.org/10.1016/j.colsurfa.2021.127949 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 634 2022 5 0205 0 |
spelling |
10.1016/j.colsurfa.2021.127949 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001621.pica (DE-627)ELV056292163 (ELSEVIER)S0927-7757(21)01818-5 DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Zhang, Shangying verfasserin aut The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. Porogen Elsevier Porous hollow microspheres Elsevier Polyethylene glycol Elsevier Adsorption material Elsevier Polysulfone Elsevier Dai, Fengna oth Wang, Qi oth Qian, Guangtao oth Chen, Chunhai oth Yu, Youhai oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:634 year:2022 day:5 month:02 pages:0 https://doi.org/10.1016/j.colsurfa.2021.127949 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 634 2022 5 0205 0 |
allfields_unstemmed |
10.1016/j.colsurfa.2021.127949 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001621.pica (DE-627)ELV056292163 (ELSEVIER)S0927-7757(21)01818-5 DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Zhang, Shangying verfasserin aut The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. Porogen Elsevier Porous hollow microspheres Elsevier Polyethylene glycol Elsevier Adsorption material Elsevier Polysulfone Elsevier Dai, Fengna oth Wang, Qi oth Qian, Guangtao oth Chen, Chunhai oth Yu, Youhai oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:634 year:2022 day:5 month:02 pages:0 https://doi.org/10.1016/j.colsurfa.2021.127949 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 634 2022 5 0205 0 |
allfieldsGer |
10.1016/j.colsurfa.2021.127949 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001621.pica (DE-627)ELV056292163 (ELSEVIER)S0927-7757(21)01818-5 DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Zhang, Shangying verfasserin aut The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. Porogen Elsevier Porous hollow microspheres Elsevier Polyethylene glycol Elsevier Adsorption material Elsevier Polysulfone Elsevier Dai, Fengna oth Wang, Qi oth Qian, Guangtao oth Chen, Chunhai oth Yu, Youhai oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:634 year:2022 day:5 month:02 pages:0 https://doi.org/10.1016/j.colsurfa.2021.127949 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 634 2022 5 0205 0 |
allfieldsSound |
10.1016/j.colsurfa.2021.127949 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001621.pica (DE-627)ELV056292163 (ELSEVIER)S0927-7757(21)01818-5 DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Zhang, Shangying verfasserin aut The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. Porogen Elsevier Porous hollow microspheres Elsevier Polyethylene glycol Elsevier Adsorption material Elsevier Polysulfone Elsevier Dai, Fengna oth Wang, Qi oth Qian, Guangtao oth Chen, Chunhai oth Yu, Youhai oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:634 year:2022 day:5 month:02 pages:0 https://doi.org/10.1016/j.colsurfa.2021.127949 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 634 2022 5 0205 0 |
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Enthalten in Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface Amsterdam [u.a.] volume:634 year:2022 day:5 month:02 pages:0 |
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Enthalten in Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface Amsterdam [u.a.] volume:634 year:2022 day:5 month:02 pages:0 |
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Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface |
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The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. 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Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface |
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The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption |
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fabrication of porous hollow polysulfone microspheres with peg as a porogen for methylene blue adsorption |
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The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption |
abstract |
A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. |
abstractGer |
A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. |
abstract_unstemmed |
A porous hollow polysulfone (donated as PHPSF) microspheres were prepared by non-solvent-induced phase separation using PEG as a porogen. The influence of the molecular weights (Mw) of PEG on the morphology and porous structure of the microspheres were investigated. As the Mw of PEG increasing from 600 to 10,000 g·mol–1, the viscosity of the system increases, leading to the increase of the viscosity difference between the dispersed phase and the continuous phase, and a delay in phase separation. Hence, the diameter and shell thickness of the obtained microspheres increase with the porosity reducing. Moreover, when the Mw of PEG is below 4000, the low |Δδ| between PEG and solvent is conducive to the formation of microporous structure with narrow pore distribution. The as-prepared PHPSF microspheres exhibit a separation efficiency of 6 times for MB than that of the original PSF microspheres. In addition, a reusability of 5 times of PHPSF is achieved even in the harsh acid or alkali condition. These results clarify the relationship between the different Mw of PEGs and microspheres morphology. Therefore, this kind of PHPSF microspheres holds a promising for the water organic pollution treatment. |
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title_short |
The fabrication of porous hollow polysulfone microspheres with PEG as a porogen for methylene blue adsorption |
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https://doi.org/10.1016/j.colsurfa.2021.127949 |
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Dai, Fengna Wang, Qi Qian, Guangtao Chen, Chunhai Yu, Youhai |
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