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Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors
The sensitization of rate of photon absorption of a TiO2 photocatalyst irradiated by natural solar radiation in pi- lot scale compound parabolic collectors (CPC's) photoreactors was investigated. Methyl red (MR) dye was used as a photo-sensitizer to increase the rate of photon absorption of a T...
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| Main Authors: | , , , , , |
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| Format: | Default Article |
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2019
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| Online Access: | https://hdl.handle.net/2134/9917705.v1 |
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| _version_ | 1818168057606963200 |
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| author | Jennyfer Diaz-Angulo Jose Lara-Ramos Miguel Mueses Aracely Hernández-Ramírez Gianluca Li-Puma Fiderman Machuca-Martínez |
| author_facet | Jennyfer Diaz-Angulo Jose Lara-Ramos Miguel Mueses Aracely Hernández-Ramírez Gianluca Li-Puma Fiderman Machuca-Martínez |
| author_sort | Jennyfer Diaz-Angulo (7443647) |
| collection | Figshare |
| description | The sensitization of rate of photon absorption of a TiO2 photocatalyst irradiated by natural solar radiation in pi- lot scale compound parabolic collectors (CPC's) photoreactors was investigated. Methyl red (MR) dye was used as a photo-sensitizer to increase the rate of photon absorption of a TiO2 photocatalyst and the oxidative removal of the common pharmaceutical diclofenac (DCF) in solar, pilot scale, compound parabolic collectors (CPC's) pho- toreactors. The impact of the concentrations of TiO2 and MR were investigated and tuned to determine the most effective operational conditions. The results show that the dye-sensitization process of the catalyst and the degra- dation of DCF were favored at catalyst concentrations close to the optimum. Complete degradation and min- eralization of DCF DCF were achieved under most effective operational conditions. The mineralization of DCF and dye increased by up to 65% in the presence of the MR sensitizer compared to the results without sensitizer. The oxidation by-products formed during the process were identified by gas chromatography–mass spectrometry (GC–MS). A detailed mechanism of the dye-sensitization process was proposed, and a kinetic model for the simul- taneous degradation of diclofenac and the dye was derived using the pseudo-stationary state method. This study demonstrates the positive impact of dye sensitizers on the photocatalytic degradation of pharmaceuticals in pilot scale photoreactors irradiated by natural sunlight. |
| format | Default Article |
| id | rr-article-9917705 |
| institution | Loughborough University |
| publishDate | 2019 |
| record_format | Figshare |
| spelling | rr-article-99177052019-08-17T00:00:00Z Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors Jennyfer Diaz-Angulo (7443647) Jose Lara-Ramos (7443650) Miguel Mueses (7443671) Aracely Hernández-Ramírez (4478002) Gianluca Li-Puma (1252566) Fiderman Machuca-Martínez (7443672) Dye-sensitized Visible light Photon absorption Solar radiation Pilot scale reactor Methyl red The sensitization of rate of photon absorption of a TiO2 photocatalyst irradiated by natural solar radiation in pi- lot scale compound parabolic collectors (CPC's) photoreactors was investigated. Methyl red (MR) dye was used as a photo-sensitizer to increase the rate of photon absorption of a TiO2 photocatalyst and the oxidative removal of the common pharmaceutical diclofenac (DCF) in solar, pilot scale, compound parabolic collectors (CPC's) pho- toreactors. The impact of the concentrations of TiO2 and MR were investigated and tuned to determine the most effective operational conditions. The results show that the dye-sensitization process of the catalyst and the degra- dation of DCF were favored at catalyst concentrations close to the optimum. Complete degradation and min- eralization of DCF DCF were achieved under most effective operational conditions. The mineralization of DCF and dye increased by up to 65% in the presence of the MR sensitizer compared to the results without sensitizer. The oxidation by-products formed during the process were identified by gas chromatography–mass spectrometry (GC–MS). A detailed mechanism of the dye-sensitization process was proposed, and a kinetic model for the simul- taneous degradation of diclofenac and the dye was derived using the pseudo-stationary state method. This study demonstrates the positive impact of dye sensitizers on the photocatalytic degradation of pharmaceuticals in pilot scale photoreactors irradiated by natural sunlight. 2019-08-17T00:00:00Z Text Journal contribution 2134/9917705.v1 https://figshare.com/articles/journal_contribution/Enhancement_of_the_oxidative_removal_of_diclofenac_and_of_the_TiO2_rate_of_photon_absorption_in_dye-sensitized_solar_pilot_scale_CPC_photocatalytic_reactors/9917705 CC BY-NC-ND 4.0 |
| spellingShingle | Dye-sensitized Visible light Photon absorption Solar radiation Pilot scale reactor Methyl red Jennyfer Diaz-Angulo Jose Lara-Ramos Miguel Mueses Aracely Hernández-Ramírez Gianluca Li-Puma Fiderman Machuca-Martínez Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title | Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title_full | Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title_fullStr | Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title_full_unstemmed | Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title_short | Enhancement of the oxidative removal of diclofenac and of the TiO2 rate of photon absorption in dye-sensitized solar pilot scale CPC photocatalytic reactors |
| title_sort | enhancement of the oxidative removal of diclofenac and of the tio2 rate of photon absorption in dye-sensitized solar pilot scale cpc photocatalytic reactors |
| topic | Dye-sensitized Visible light Photon absorption Solar radiation Pilot scale reactor Methyl red |
| url | https://hdl.handle.net/2134/9917705.v1 |