Coupled Microwave/Photoassisted Methods for Environmental Remediation
The microwave-induced acceleration of photocatalytic reactions was discovered serendipitously in the late 1990s. The activity of photocatalysts is enhanced significantly by both microwave radiation and UV light. Particularly relevant, other than as a heat source, was the enigmatic phenomenon of the...
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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/1420-3049/19/11/18102 |
| _version_ | 1811313876797489152 |
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| author | Satoshi Horikoshi Nick Serpone |
| author_facet | Satoshi Horikoshi Nick Serpone |
| author_sort | Satoshi Horikoshi |
| collection | DOAJ |
| description | The microwave-induced acceleration of photocatalytic reactions was discovered serendipitously in the late 1990s. The activity of photocatalysts is enhanced significantly by both microwave radiation and UV light. Particularly relevant, other than as a heat source, was the enigmatic phenomenon of the non-thermal effect(s) of the microwave radiation that facilitated photocatalyzed reactions, as evidenced when examining various model contaminants in aqueous media. Results led to an examination of the possible mechanism(s) of the microwave effect(s). In the present article we contend that the microwaves’ non-thermal effect(s) is an important factor in the enhancement of TiO2-photoassisted reactions involving the decomposition of organic pollutants in model wastewaters by an integrated (coupled) microwave-/UV-illumination method (UV/MW). Moreover, such coupling of no less than two irradiation methods led to the fabrication and ultimate investigation of microwave discharged electrodeless lamps (MDELs) as optimal light sources; their use is also described. The review focuses on the enhanced activity of photocatalytic reactions when subjected to microwave radiation and concentrates on the authors’ research of the past few years. |
| first_indexed | 2024-04-13T11:02:16Z |
| format | Article |
| id | doaj.art-9c3aba516076418a95f1f38f9e56fe23 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-13T11:02:16Z |
| publishDate | 2014-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-9c3aba516076418a95f1f38f9e56fe232022-12-22T02:49:22ZengMDPI AGMolecules1420-30492014-11-011911181021812810.3390/molecules191118102molecules191118102Coupled Microwave/Photoassisted Methods for Environmental RemediationSatoshi Horikoshi0Nick Serpone1Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyodaku, Tokyo 102-8554, JapanPhotoGreen Laboratory, Dipartimento di Chimica, Università di Pavia, via Taramelli 12, Pavia 27100, ItalyThe microwave-induced acceleration of photocatalytic reactions was discovered serendipitously in the late 1990s. The activity of photocatalysts is enhanced significantly by both microwave radiation and UV light. Particularly relevant, other than as a heat source, was the enigmatic phenomenon of the non-thermal effect(s) of the microwave radiation that facilitated photocatalyzed reactions, as evidenced when examining various model contaminants in aqueous media. Results led to an examination of the possible mechanism(s) of the microwave effect(s). In the present article we contend that the microwaves’ non-thermal effect(s) is an important factor in the enhancement of TiO2-photoassisted reactions involving the decomposition of organic pollutants in model wastewaters by an integrated (coupled) microwave-/UV-illumination method (UV/MW). Moreover, such coupling of no less than two irradiation methods led to the fabrication and ultimate investigation of microwave discharged electrodeless lamps (MDELs) as optimal light sources; their use is also described. The review focuses on the enhanced activity of photocatalytic reactions when subjected to microwave radiation and concentrates on the authors’ research of the past few years.http://www.mdpi.com/1420-3049/19/11/18102photocatalystTiO2microwavenon-thermal effectwastewater treatmentmicrowave discharge electrodeless lamp |
| spellingShingle | Satoshi Horikoshi Nick Serpone Coupled Microwave/Photoassisted Methods for Environmental Remediation Molecules photocatalyst TiO2 microwave non-thermal effect wastewater treatment microwave discharge electrodeless lamp |
| title | Coupled Microwave/Photoassisted Methods for Environmental Remediation |
| title_full | Coupled Microwave/Photoassisted Methods for Environmental Remediation |
| title_fullStr | Coupled Microwave/Photoassisted Methods for Environmental Remediation |
| title_full_unstemmed | Coupled Microwave/Photoassisted Methods for Environmental Remediation |
| title_short | Coupled Microwave/Photoassisted Methods for Environmental Remediation |
| title_sort | coupled microwave photoassisted methods for environmental remediation |
| topic | photocatalyst TiO2 microwave non-thermal effect wastewater treatment microwave discharge electrodeless lamp |
| url | http://www.mdpi.com/1420-3049/19/11/18102 |
| work_keys_str_mv | AT satoshihorikoshi coupledmicrowavephotoassistedmethodsforenvironmentalremediation AT nickserpone coupledmicrowavephotoassistedmethodsforenvironmentalremediation |