One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity
Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method...
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| Autor*in: |
Liu, Yongbao [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media New York 2016 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of materials science / Materials in electronics - Springer US, 1990, 28(2016), 2 vom: 08. Okt., Seite 2172-2182 |
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| Übergeordnetes Werk: |
volume:28 ; year:2016 ; number:2 ; day:08 ; month:10 ; pages:2172-2182 |
| Links: |
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| DOI / URN: |
10.1007/s10854-016-5782-9 |
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OLC202631554X |
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| 245 | 1 | 0 | |a One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
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| 520 | |a Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. | ||
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| 700 | 1 | |a Liu, Peng |4 aut | |
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10.1007/s10854-016-5782-9 doi (DE-627)OLC202631554X (DE-He213)s10854-016-5782-9-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Liu, Yongbao verfasserin aut One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2016 Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity Zhu, Gangqiang aut Peng, Jianhong aut Gao, Jianzhi aut Wang, Chenghui aut Liu, Peng aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 28(2016), 2 vom: 08. Okt., Seite 2172-2182 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 https://doi.org/10.1007/s10854-016-5782-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 28 2016 2 08 10 2172-2182 |
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10.1007/s10854-016-5782-9 doi (DE-627)OLC202631554X (DE-He213)s10854-016-5782-9-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Liu, Yongbao verfasserin aut One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2016 Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity Zhu, Gangqiang aut Peng, Jianhong aut Gao, Jianzhi aut Wang, Chenghui aut Liu, Peng aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 28(2016), 2 vom: 08. Okt., Seite 2172-2182 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 https://doi.org/10.1007/s10854-016-5782-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 28 2016 2 08 10 2172-2182 |
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10.1007/s10854-016-5782-9 doi (DE-627)OLC202631554X (DE-He213)s10854-016-5782-9-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Liu, Yongbao verfasserin aut One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2016 Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity Zhu, Gangqiang aut Peng, Jianhong aut Gao, Jianzhi aut Wang, Chenghui aut Liu, Peng aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 28(2016), 2 vom: 08. Okt., Seite 2172-2182 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 https://doi.org/10.1007/s10854-016-5782-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 28 2016 2 08 10 2172-2182 |
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10.1007/s10854-016-5782-9 doi (DE-627)OLC202631554X (DE-He213)s10854-016-5782-9-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Liu, Yongbao verfasserin aut One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2016 Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity Zhu, Gangqiang aut Peng, Jianhong aut Gao, Jianzhi aut Wang, Chenghui aut Liu, Peng aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 28(2016), 2 vom: 08. Okt., Seite 2172-2182 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 https://doi.org/10.1007/s10854-016-5782-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 28 2016 2 08 10 2172-2182 |
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10.1007/s10854-016-5782-9 doi (DE-627)OLC202631554X (DE-He213)s10854-016-5782-9-p DE-627 ger DE-627 rakwb eng 600 670 620 VZ Liu, Yongbao verfasserin aut One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity 2016 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media New York 2016 Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity Zhu, Gangqiang aut Peng, Jianhong aut Gao, Jianzhi aut Wang, Chenghui aut Liu, Peng aut Enthalten in Journal of materials science / Materials in electronics Springer US, 1990 28(2016), 2 vom: 08. Okt., Seite 2172-2182 (DE-627)130863289 (DE-600)1030929-9 (DE-576)023106719 0957-4522 nnns volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 https://doi.org/10.1007/s10854-016-5782-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY GBV_ILN_30 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4305 GBV_ILN_4323 AR 28 2016 2 08 10 2172-2182 |
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Enthalten in Journal of materials science / Materials in electronics 28(2016), 2 vom: 08. Okt., Seite 2172-2182 volume:28 year:2016 number:2 day:08 month:10 pages:2172-2182 |
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The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. 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Liu, Yongbao |
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Liu, Yongbao ddc 600 misc Photocatalytic Activity misc Methyl Orange misc Light Irradiation misc Photocatalytic Performance misc High Photocatalytic Activity One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
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600 670 620 VZ One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity Photocatalytic Activity Methyl Orange Light Irradiation Photocatalytic Performance High Photocatalytic Activity |
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One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
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One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
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Liu, Yongbao Zhu, Gangqiang Peng, Jianhong Gao, Jianzhi Wang, Chenghui Liu, Peng |
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one-step molten-salt method fabricated $ bi_{2} $$ ti_{2} $$ o_{7} $/$ bi_{4} $$ ti_{3} $$ o_{12} $ composites with enhanced photocatalytic activity |
| title_auth |
One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
| abstract |
Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. © Springer Science+Business Media New York 2016 |
| abstractGer |
Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. © Springer Science+Business Media New York 2016 |
| abstract_unstemmed |
Abstract In this work, $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite photocatalysts composed of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ sub-micron-sized particles and $ Bi_{4} $$ Ti_{3} $$ O_{12} $ nanosheets with exposed {001} facets, were synthesized by a one-step molten salt method. The contents of $ Bi_{2} $$ Ti_{2} $$ O_{7} $ in the $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites were adjusted by the Bi/Ti molar ratio of raw materials. The structure, morphology and optical absorption properties were characterized by XRD, SEM, TEM, HRTEM and UV–Vis diffuse reflectance. Compared with pure $ Bi_{4} $$ Ti_{3} $$ O_{12} $, the as-prepared $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composite (for the Bi/Ti ratio ~4:3.2) exhibit more excellent photocatalytic activities in the degradation of methyl orange (MO), Rhodamine B (RhB) and mixed dyes (RhB and MO) in aqueous solutions under simulated solar light irradiation. Furthermore, for the mixed dye solution, the as-prepared composite photocatalysts show preferential decomposition of MO in comparison to RhB. To detect the reactive species, the scavenger tests for the composite photocatalysts were carried out and the results indicate that the photogenerated h+ would play an important role in the degradation of RhB and MO dyes. Based on the experimental results in this work, the possible photocatalytic degradation mechanism of $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites was also discussed. © Springer Science+Business Media New York 2016 |
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One-step molten-salt method fabricated $ Bi_{2} $$ Ti_{2} $$ O_{7} $/$ Bi_{4} $$ Ti_{3} $$ O_{12} $ composites with enhanced photocatalytic activity |
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