Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants
A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization sa...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Su, Gang [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021transfer abstract |
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| Schlagwörter: |
Magnetic Fe3O4@SiO2@BiFeO3/rGO composite |
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| Umfang: |
14 |
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| Übergeordnetes Werk: |
Enthalten in: Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration - Rey, F. ELSEVIER, 2018, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:47 ; year:2021 ; number:4 ; day:15 ; month:02 ; pages:5374-5387 ; extent:14 |
| Links: |
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| DOI / URN: |
10.1016/j.ceramint.2020.10.118 |
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ELV052671542 |
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| 245 | 1 | 9 | |a Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants |
| 264 | 1 | |c 2021transfer abstract | |
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| 520 | |a A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. | ||
| 520 | |a A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. | ||
| 650 | 7 | |a Magnetic Fe3O4@SiO2@BiFeO3/rGO composite |2 Elsevier | |
| 650 | 7 | |a Organic wastewater |2 Elsevier | |
| 650 | 7 | |a Hydrothermal synthesis |2 Elsevier | |
| 650 | 7 | |a Visible-light catalytic degradation activity |2 Elsevier | |
| 650 | 7 | |a Degradation mechanism |2 Elsevier | |
| 700 | 1 | |a Liu, Lihua |4 oth | |
| 700 | 1 | |a Liu, Xing |4 oth | |
| 700 | 1 | |a Zhang, Lixing |4 oth | |
| 700 | 1 | |a Xue, Jianrong |4 oth | |
| 700 | 1 | |a Tang, Anping |4 oth | |
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10.1016/j.ceramint.2020.10.118 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001359.pica (DE-627)ELV052671542 (ELSEVIER)S0272-8842(20)33161-8 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Su, Gang verfasserin aut Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants 2021transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. Magnetic Fe3O4@SiO2@BiFeO3/rGO composite Elsevier Organic wastewater Elsevier Hydrothermal synthesis Elsevier Visible-light catalytic degradation activity Elsevier Degradation mechanism Elsevier Liu, Lihua oth Liu, Xing oth Zhang, Lixing oth Xue, Jianrong oth Tang, Anping oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:4 day:15 month:02 pages:5374-5387 extent:14 https://doi.org/10.1016/j.ceramint.2020.10.118 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 4 15 0215 5374-5387 14 |
| spelling |
10.1016/j.ceramint.2020.10.118 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001359.pica (DE-627)ELV052671542 (ELSEVIER)S0272-8842(20)33161-8 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Su, Gang verfasserin aut Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants 2021transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. Magnetic Fe3O4@SiO2@BiFeO3/rGO composite Elsevier Organic wastewater Elsevier Hydrothermal synthesis Elsevier Visible-light catalytic degradation activity Elsevier Degradation mechanism Elsevier Liu, Lihua oth Liu, Xing oth Zhang, Lixing oth Xue, Jianrong oth Tang, Anping oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:4 day:15 month:02 pages:5374-5387 extent:14 https://doi.org/10.1016/j.ceramint.2020.10.118 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 4 15 0215 5374-5387 14 |
| allfields_unstemmed |
10.1016/j.ceramint.2020.10.118 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001359.pica (DE-627)ELV052671542 (ELSEVIER)S0272-8842(20)33161-8 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Su, Gang verfasserin aut Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants 2021transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. Magnetic Fe3O4@SiO2@BiFeO3/rGO composite Elsevier Organic wastewater Elsevier Hydrothermal synthesis Elsevier Visible-light catalytic degradation activity Elsevier Degradation mechanism Elsevier Liu, Lihua oth Liu, Xing oth Zhang, Lixing oth Xue, Jianrong oth Tang, Anping oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:4 day:15 month:02 pages:5374-5387 extent:14 https://doi.org/10.1016/j.ceramint.2020.10.118 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 4 15 0215 5374-5387 14 |
| allfieldsGer |
10.1016/j.ceramint.2020.10.118 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001359.pica (DE-627)ELV052671542 (ELSEVIER)S0272-8842(20)33161-8 DE-627 ger DE-627 rakwb eng 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Su, Gang verfasserin aut Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants 2021transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. Magnetic Fe3O4@SiO2@BiFeO3/rGO composite Elsevier Organic wastewater Elsevier Hydrothermal synthesis Elsevier Visible-light catalytic degradation activity Elsevier Degradation mechanism Elsevier Liu, Lihua oth Liu, Xing oth Zhang, Lixing oth Xue, Jianrong oth Tang, Anping oth Enthalten in Elsevier Science Rey, F. ELSEVIER Soil and water bioengineering: Practice and research needs for reconciling natural hazard control and ecological restoration 2018 Amsterdam [u.a.] (DE-627)ELV000899798 volume:47 year:2021 number:4 day:15 month:02 pages:5374-5387 extent:14 https://doi.org/10.1016/j.ceramint.2020.10.118 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 47 2021 4 15 0215 5374-5387 14 |
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Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants |
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A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. |
| abstractGer |
A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. |
| abstract_unstemmed |
A novel magnetic Fe3O4SiO2@BiFeO3/rGO composite was successfully fabricated via a facile hydrothermal method. This composite consisted of flower-like core-shell structured Fe3O4@SiO2@BiFeO3 microspheres mounting on reduced graphene oxide (rGO) nanosheets. The specific surface areas, magnetization saturation value (M s), and band gap energy (E g) of Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 139.26 m2/g, 20.3 emu/g, and 1.91 eV, respectively. Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) exhibited remarkable ability to photocatalytically degrade ciprofloxacin (CIP), tetracycline hydrochloride (TC-H), methylene blue (MB), and decolorize a mixed solution of MB, methyl orange (MO), and rhodamine B (Rh B); CIP, TC-H, and MB degradation by Fe3O4@SiO2@BiFeO3/rGO conformed to a first-order kinetic reaction, and the corresponding k app values by Fe3O4@SiO2@BiFeO3/rGO (x = 0.15 g) were 0.04211, 0.02792, and 0.05967 min−1, respectively. Excellent magnetic separation performance, recyclability, and stability were also observed. A suitable amount of rGO to the as-prepared photocatalyst could decrease the E g, accelerate the transfer of photogenerated electrons (e−), suppress the recombination of photo-generated e−–hole (h+) pairs, and enhance the visible-light response of the catalyst. The •OH is the dominant active species during photocatalysis. This work suggests a promising strategy to synthesize photocatalysts with enhanced ability to catalytically degrade organic pollutant under visible light and excellent recyclability. |
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| container_issue |
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| title_short |
Magnetic Fe3O4SiO2@BiFeO3/rGO composite for the enhanced visible-light catalytic degradation activity of organic pollutants |
| url |
https://doi.org/10.1016/j.ceramint.2020.10.118 |
| remote_bool |
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| author2 |
Liu, Lihua Liu, Xing Zhang, Lixing Xue, Jianrong Tang, Anping |
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Liu, Lihua Liu, Xing Zhang, Lixing Xue, Jianrong Tang, Anping |
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| doi_str |
10.1016/j.ceramint.2020.10.118 |
| up_date |
2024-07-06T16:48:58.658Z |
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