Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine
The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Yi [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017transfer abstract |
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| Schlagwörter: |
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| Umfang: |
7 |
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| Übergeordnetes Werk: |
Enthalten in: SP-0433: Imaging biobanks: challenges and opportunities - Van der Lugt, A. ELSEVIER, 2017, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:38 ; year:2017 ; number:2 ; pages:330-336 ; extent:7 |
| Links: |
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| DOI / URN: |
10.1016/S1872-2067(16)62580-9 |
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ELV025268554 |
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| 245 | 1 | 0 | |a Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine |
| 264 | 1 | |c 2017transfer abstract | |
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| 520 | |a The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. | ||
| 520 | |a The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. | ||
| 650 | 7 | |a Photocatalytic activity |2 Elsevier | |
| 650 | 7 | |a SiO2@Fe3O4 |2 Elsevier | |
| 650 | 7 | |a Sodium azide |2 Elsevier | |
| 650 | 7 | |a Cobalt thioporphyrazine |2 Elsevier | |
| 650 | 7 | |a Axial direction ligand |2 Elsevier | |
| 650 | 7 | |a Alumina |2 Elsevier | |
| 700 | 1 | |a Zhou, Xuanmu |4 oth | |
| 700 | 1 | |a Zhang, Zhehui |4 oth | |
| 700 | 1 | |a Zhang, Bingguang |4 oth | |
| 700 | 1 | |a Deng, Kejian |4 oth | |
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10.1016/S1872-2067(16)62580-9 doi GBVA2017009000016.pica (DE-627)ELV025268554 (ELSEVIER)S1872-2067(16)62580-9 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 570 540 VZ Liu, Yi verfasserin aut Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine 2017transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. Photocatalytic activity Elsevier SiO2@Fe3O4 Elsevier Sodium azide Elsevier Cobalt thioporphyrazine Elsevier Axial direction ligand Elsevier Alumina Elsevier Zhou, Xuanmu oth Zhang, Zhehui oth Zhang, Bingguang oth Deng, Kejian oth Enthalten in Elsevier Van der Lugt, A. ELSEVIER SP-0433: Imaging biobanks: challenges and opportunities 2017 Amsterdam [u.a.] (DE-627)ELV01487606X volume:38 year:2017 number:2 pages:330-336 extent:7 https://doi.org/10.1016/S1872-2067(16)62580-9 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 38 2017 2 330-336 7 045F 540 |
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10.1016/S1872-2067(16)62580-9 doi GBVA2017009000016.pica (DE-627)ELV025268554 (ELSEVIER)S1872-2067(16)62580-9 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 570 540 VZ Liu, Yi verfasserin aut Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine 2017transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. Photocatalytic activity Elsevier SiO2@Fe3O4 Elsevier Sodium azide Elsevier Cobalt thioporphyrazine Elsevier Axial direction ligand Elsevier Alumina Elsevier Zhou, Xuanmu oth Zhang, Zhehui oth Zhang, Bingguang oth Deng, Kejian oth Enthalten in Elsevier Van der Lugt, A. ELSEVIER SP-0433: Imaging biobanks: challenges and opportunities 2017 Amsterdam [u.a.] (DE-627)ELV01487606X volume:38 year:2017 number:2 pages:330-336 extent:7 https://doi.org/10.1016/S1872-2067(16)62580-9 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 38 2017 2 330-336 7 045F 540 |
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10.1016/S1872-2067(16)62580-9 doi GBVA2017009000016.pica (DE-627)ELV025268554 (ELSEVIER)S1872-2067(16)62580-9 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 570 540 VZ Liu, Yi verfasserin aut Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine 2017transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. Photocatalytic activity Elsevier SiO2@Fe3O4 Elsevier Sodium azide Elsevier Cobalt thioporphyrazine Elsevier Axial direction ligand Elsevier Alumina Elsevier Zhou, Xuanmu oth Zhang, Zhehui oth Zhang, Bingguang oth Deng, Kejian oth Enthalten in Elsevier Van der Lugt, A. ELSEVIER SP-0433: Imaging biobanks: challenges and opportunities 2017 Amsterdam [u.a.] (DE-627)ELV01487606X volume:38 year:2017 number:2 pages:330-336 extent:7 https://doi.org/10.1016/S1872-2067(16)62580-9 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 38 2017 2 330-336 7 045F 540 |
| allfieldsGer |
10.1016/S1872-2067(16)62580-9 doi GBVA2017009000016.pica (DE-627)ELV025268554 (ELSEVIER)S1872-2067(16)62580-9 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 570 540 VZ Liu, Yi verfasserin aut Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine 2017transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. Photocatalytic activity Elsevier SiO2@Fe3O4 Elsevier Sodium azide Elsevier Cobalt thioporphyrazine Elsevier Axial direction ligand Elsevier Alumina Elsevier Zhou, Xuanmu oth Zhang, Zhehui oth Zhang, Bingguang oth Deng, Kejian oth Enthalten in Elsevier Van der Lugt, A. ELSEVIER SP-0433: Imaging biobanks: challenges and opportunities 2017 Amsterdam [u.a.] (DE-627)ELV01487606X volume:38 year:2017 number:2 pages:330-336 extent:7 https://doi.org/10.1016/S1872-2067(16)62580-9 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 38 2017 2 330-336 7 045F 540 |
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10.1016/S1872-2067(16)62580-9 doi GBVA2017009000016.pica (DE-627)ELV025268554 (ELSEVIER)S1872-2067(16)62580-9 DE-627 ger DE-627 rakwb eng 540 540 DE-600 610 VZ 570 540 VZ Liu, Yi verfasserin aut Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine 2017transfer abstract 7 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. Photocatalytic activity Elsevier SiO2@Fe3O4 Elsevier Sodium azide Elsevier Cobalt thioporphyrazine Elsevier Axial direction ligand Elsevier Alumina Elsevier Zhou, Xuanmu oth Zhang, Zhehui oth Zhang, Bingguang oth Deng, Kejian oth Enthalten in Elsevier Van der Lugt, A. ELSEVIER SP-0433: Imaging biobanks: challenges and opportunities 2017 Amsterdam [u.a.] (DE-627)ELV01487606X volume:38 year:2017 number:2 pages:330-336 extent:7 https://doi.org/10.1016/S1872-2067(16)62580-9 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_40 AR 38 2017 2 330-336 7 045F 540 |
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effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine |
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Effect of carrier and axial ligand on the photocatalytic activity of cobalt thioporphyrazine |
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The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. |
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The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. |
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The photocatalytic activity of cobalt octakis(butylthio) porphyrazine (CoPz(BuS)8) was assessed through photodegradation of the dye rhodamine B (RhB) in water under irradiation with a Xe lamp and aerated conditions. The photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 or SiO2Fe3O4 nanoparticles or coordinated with an axial azide ligand was also investigated. The results demonstrated that the photocatalytic activity of CoPz(BuS)8 loaded on Al2O3 was higher than that loaded on SiO2@Fe3O4. The kinetic curves of RhB degradation in aqueous solutions at different pH indicated the pseudo first-order kinetics of the reaction. The highest degradation rate for CoPz(BuS)8 loaded Al2O3 at pH = 4 after 160 min was 84.6%. However, the advantages of easier separation and recycling as well as the ability to terminate the reaction at any time for the CoPz(BuS)8 loaded SiO2@Fe3O4 cannot be ignored. When electron-rich NaN3 was coordinated with CoPz(BuS)8 as an axial ligand and loaded on Al2O3, the resulting catalyst produced more active oxygen species such as O2 − and HO• to promote the quicker degradation of RhB than that by the other catalysts. For the N3-coordinated CoPz(BuS)8 loaded on Al2O3, the reactions at pH = 4 and 7 distinctly deviated from first-order kinetics, and the degradation rate reached 77.6% after 80 min at pH = 4. |
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