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The role played by different TiO2 features on the photocatalytic degradation of paracetamol.

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Title: The role played by different TiO2 features on the photocatalytic degradation of paracetamol.
Authors: Rimoldi, Luca1,2 luca.rimoldi@unimi.it, Meroni, Daniela1,2 daniela.meroni@unimi.it, Falletta, Ermelinda1, Ferretti, Anna Maria3, Gervasini, Antonella1, Cappelletti, Giuseppe1,2, Ardizzone, Silvia1,2
Source: Applied Surface Science. Dec2017 Part 2, Vol. 424, p198-205. 8p.
Subjects: Titanium dioxide nanoparticles, Photodegradation, Acetaminophen, Photocatalysis, Doping agents (Chemistry), Gas chromatography/Mass spectrometry (GC-MS)
Abstract: Photocatalytic reactions promoted by TiO 2 can be affected by a large number of oxide features ( e.g. surface area, morphology and phase composition). In this context, the role played by the surface characteristics ( e.g. surface acidity, wettability, etc. ) has been often disregarded. In this work, pristine and Ta-doped TiO 2 nanomaterials with different phase composition (pure anatase and anatase/brookite mixture) were synthesized by sol–gel and characterized under the structural and morphological point of view. A careful characterization of the acid properties of the materials has been performed by liquid–solid acid–base titration by means of 2-phenylethylamine (PEA) adsorption to determine the acid site density and average acid strength. Photocatalytic tests were performed in the degradation of paracetamol (acetaminophen) under UV irradiation and results were discussed in the light of the detailed scenarios describing the different oxides. The surface acidity of the samples, was recognized as one of the key parameters controlling the photocatalytic activity. A possible molecule degradation route is proposed on the ground of GC–MS and ESI–MS analyses. [ABSTRACT FROM AUTHOR]
Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 125232886
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: The role played by different TiO2 features on the photocatalytic degradation of paracetamol.
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  Data: <searchLink fieldCode="AR" term="%22Rimoldi%2C+Luca%22">Rimoldi, Luca</searchLink><relatesTo>1,2</relatesTo><i> luca.rimoldi@unimi.it</i><br /><searchLink fieldCode="AR" term="%22Meroni%2C+Daniela%22">Meroni, Daniela</searchLink><relatesTo>1,2</relatesTo><i> daniela.meroni@unimi.it</i><br /><searchLink fieldCode="AR" term="%22Falletta%2C+Ermelinda%22">Falletta, Ermelinda</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ferretti%2C+Anna+Maria%22">Ferretti, Anna Maria</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Gervasini%2C+Antonella%22">Gervasini, Antonella</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cappelletti%2C+Giuseppe%22">Cappelletti, Giuseppe</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ardizzone%2C+Silvia%22">Ardizzone, Silvia</searchLink><relatesTo>1,2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Applied+Surface+Science%22">Applied Surface Science</searchLink>. Dec2017 Part 2, Vol. 424, p198-205. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Titanium+dioxide+nanoparticles%22">Titanium dioxide nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Photodegradation%22">Photodegradation</searchLink><br /><searchLink fieldCode="DE" term="%22Acetaminophen%22">Acetaminophen</searchLink><br /><searchLink fieldCode="DE" term="%22Photocatalysis%22">Photocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+chromatography%2FMass+spectrometry+%28GC-MS%29%22">Gas chromatography/Mass spectrometry (GC-MS)</searchLink>
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  Data: Photocatalytic reactions promoted by TiO 2 can be affected by a large number of oxide features ( e.g. surface area, morphology and phase composition). In this context, the role played by the surface characteristics ( e.g. surface acidity, wettability, etc. ) has been often disregarded. In this work, pristine and Ta-doped TiO 2 nanomaterials with different phase composition (pure anatase and anatase/brookite mixture) were synthesized by sol–gel and characterized under the structural and morphological point of view. A careful characterization of the acid properties of the materials has been performed by liquid–solid acid–base titration by means of 2-phenylethylamine (PEA) adsorption to determine the acid site density and average acid strength. Photocatalytic tests were performed in the degradation of paracetamol (acetaminophen) under UV irradiation and results were discussed in the light of the detailed scenarios describing the different oxides. The surface acidity of the samples, was recognized as one of the key parameters controlling the photocatalytic activity. A possible molecule degradation route is proposed on the ground of GC–MS and ESI–MS analyses. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Applied Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.apsusc.2017.03.033
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 198
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      – SubjectFull: Titanium dioxide nanoparticles
        Type: general
      – SubjectFull: Photodegradation
        Type: general
      – SubjectFull: Acetaminophen
        Type: general
      – SubjectFull: Photocatalysis
        Type: general
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Gas chromatography/Mass spectrometry (GC-MS)
        Type: general
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      – TitleFull: The role played by different TiO2 features on the photocatalytic degradation of paracetamol.
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            – D: 02
              M: 12
              Text: Dec2017 Part 2
              Type: published
              Y: 2017
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              Value: 424
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