Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms
Adsorb and shuttle (A/S) and interfacial charge transfer are the two major strategies for overcoming recombination in photocatalysis in this era of nanoparticle composites. Their relationships are considered here. A review of key literature is accompanied by a presentation of three new experiments w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-11-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/19/12/19557 |
| _version_ | 1819105001755115520 |
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| author | Cooper Langford Maryam Izadifard Emad Radwan Gopal Achari |
| author_facet | Cooper Langford Maryam Izadifard Emad Radwan Gopal Achari |
| author_sort | Cooper Langford |
| collection | DOAJ |
| description | Adsorb and shuttle (A/S) and interfacial charge transfer are the two major strategies for overcoming recombination in photocatalysis in this era of nanoparticle composites. Their relationships are considered here. A review of key literature is accompanied by a presentation of three new experiments within the overall aim of assessing the relation of these strategies. The cases presented include: A/S by a high silica zeolite/TiO2 composite, charge transfer (CT) between phases in a TiO2/WO3 composite and both A/S and CT by composites of TiO2 with powered activated carbon (AC) and single-walled carbon nanotubes (SWCNT). The opportunities presented by the two strategies for moving toward photocatalysts that could support applications for the removal of contaminants from drinking water or that lead to a practical adsorbent for organics that could be regenerated photocatalytically link this discussion to ongoing research here. |
| first_indexed | 2024-12-22T02:15:19Z |
| format | Article |
| id | doaj.art-eff0256086f74f368fe491ce70688aa7 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-12-22T02:15:19Z |
| publishDate | 2014-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-eff0256086f74f368fe491ce70688aa72022-12-21T18:42:18ZengMDPI AGMolecules1420-30492014-11-011912195571957210.3390/molecules191219557molecules191219557Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer MechanismsCooper Langford0Maryam Izadifard1Emad Radwan2Gopal Achari3Department of Chemistry, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, CanadaDepartment of Chemistry University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, CanadaDepartment of Water Pollution Research, National Research Centre, Cairo 12311, EgyptDepartment of Civil Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, CanadaAdsorb and shuttle (A/S) and interfacial charge transfer are the two major strategies for overcoming recombination in photocatalysis in this era of nanoparticle composites. Their relationships are considered here. A review of key literature is accompanied by a presentation of three new experiments within the overall aim of assessing the relation of these strategies. The cases presented include: A/S by a high silica zeolite/TiO2 composite, charge transfer (CT) between phases in a TiO2/WO3 composite and both A/S and CT by composites of TiO2 with powered activated carbon (AC) and single-walled carbon nanotubes (SWCNT). The opportunities presented by the two strategies for moving toward photocatalysts that could support applications for the removal of contaminants from drinking water or that lead to a practical adsorbent for organics that could be regenerated photocatalytically link this discussion to ongoing research here.http://www.mdpi.com/1420-3049/19/12/19557TiO2photocatalysisadsorb and shuttlecharge transferelectron storagecarbonzeoliteWO3 |
| spellingShingle | Cooper Langford Maryam Izadifard Emad Radwan Gopal Achari Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms Molecules TiO2 photocatalysis adsorb and shuttle charge transfer electron storage carbon zeolite WO3 |
| title | Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms |
| title_full | Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms |
| title_fullStr | Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms |
| title_full_unstemmed | Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms |
| title_short | Some Observations on the Development of Superior Photocatalytic Systems for Application to Water Purification by the “Adsorb and Shuttle” or the Interphase Charge Transfer Mechanisms |
| title_sort | some observations on the development of superior photocatalytic systems for application to water purification by the adsorb and shuttle or the interphase charge transfer mechanisms |
| topic | TiO2 photocatalysis adsorb and shuttle charge transfer electron storage carbon zeolite WO3 |
| url | http://www.mdpi.com/1420-3049/19/12/19557 |
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