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Title: | Adsorption and photocatalytic removal of Ibuprofen by activated carbon impregnated with TiO2 by UV-Vis monitoring | Authors: | Gu, Ying YPERMAN, Jan CARLEER, Robert D'HAEN, Jan MAGGEN, Jens VANDERHEYDEN, Sara VANREPPELEN, Kenny MACHADO GARCIA, Roberto |
Issue Date: | 2019 | Publisher: | PERGAMON-ELSEVIER SCIENCE LTD | Source: | CHEMOSPHERE, 217, p. 724-731 | Abstract: | The removal of Ibuprofen was investigated by activated carbon impregnated with TiO2. Emphasis was given on the effect of different parameters, such as composite type, initial Ibuprofen concentration (5 -25 mg/L), temperature (22-28 degrees C) and pH (acidic and alkaline solution). The experiment was carried out in a self-made tubular flow reactor, with one 15 W monochromatic UV lamp (254 nm). The composite AC90T10 gives the highest removal degree of 92% of Ibuprofen solution under UV light within 4 h, due to synergy of adsorption and photodegradation. It was found that weight ratio of composite/Ibuprofen has limited effect on the removal degree within the concentration range (5-25 mg/L), but reaction time under UV light (4 h) and pH (acidic solution) are very important. The kinetic experimental data obtained at pH 4.3 at 25 degrees C on different composites were fitted to pseudo-first, pseudo-second and Elovich models, obtaining a high accuracy based on R-2 values. From the results, composites of granular activated carbon and TiO2 can enhance removal of Ibuprofen effectively, making recycle process much easier and less costly, which can be a promising method in future water treatment. (C) 2018 Elsevier Ltd. All rights reserved. | Notes: | [Gu, Ying] Zhejiang Ocean Univ, Zhoushan 316022, Peoples R China. [Yperman, Jan; Carleer, Robert; Maggen, Jens; Vanderheyden, Sara; Vanreppelen, Kenny] Hasselt Univ, Res Grp Appl & Analyt Chem, Diepenbeek, Belgium. [D'Haen, Jan] Hasselt Univ, Inst Mat Res IMO, Diepenbeek, Belgium. [D'Haen, Jan] IMEC Vzw, IMOMEC, Diepenbeek, Belgium. [Machado Garcia, Roberto] Univ Oriente, Fac Nat & Exact Sci, Dept Chem, Santiago De Cuba, Cuba. | Keywords: | Activated carbon; TiO2; Ibuprofen; Photodegradation; Adsorption;Activated carbon; TiO2; Ibuprofen; Photodegradation; Adsorption | Document URI: | http://hdl.handle.net/1942/29575 | ISSN: | 0045-6535 | e-ISSN: | 1879-1298 | DOI: | 10.1016/j.chemosphere.2018.11.068 | ISI #: | 000456223500079 | Rights: | 2018 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2020 |
Appears in Collections: | Research publications |
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