Nature of Interactions at the Interface of Two Water-Saturated Commercial TiO2 Polymorphs

Giuseppe Alonzo, Leonardo Palmisano, Vittorio Loddo, Pellegrino Conte, Valentina Marsala, Claudio De Pasquale, Giuseppe Alonzo, Leonardo Palmisano, Pellegrino Conte, Valentina Marsala, Vittorio Loddo, Claudio De Pasquale

Risultato della ricerca: Article

11 Citazioni (Scopus)

Abstract

Two commercial TiO2 samples, a 100% anatase and a 100% rutile, were used for the fast field cycling NMR experiments. The results showed a different behavior between the different samples. In particular, water molecules were unbonded to the solid surface for the rutile sample, whereas they appeared to chemically interact with the surface through H-bond formation with the anatase sample. The above findings accord with the generally lower activity of rutile with respect to anatase reported in literature for photocatalytic oxidation reactions in water. The difficulty of water to interact with rutile surface, indeed, could hinder the formation of OH radicals, which are the most important oxidant species.
Lingua originaleEnglish
pagine (da-a)5269-5273
Numero di pagine5
RivistaJOURNAL OF PHYSICAL CHEMISTRY. C
Volume117
Stato di pubblicazionePublished - 2013

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Polymorphism
rutile
Titanium dioxide
Water
anatase
water
interactions
Oxidants
solid surfaces
Molecules
cycles
titanium dioxide
molecules

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Physical and Theoretical Chemistry
  • Energy(all)

Cita questo

Nature of Interactions at the Interface of Two Water-Saturated Commercial TiO2 Polymorphs. / Alonzo, Giuseppe; Palmisano, Leonardo; Loddo, Vittorio; Conte, Pellegrino; Marsala, Valentina; De Pasquale, Claudio; Alonzo, Giuseppe; Palmisano, Leonardo; Conte, Pellegrino; Marsala, Valentina; Loddo, Vittorio; De Pasquale, Claudio.

In: JOURNAL OF PHYSICAL CHEMISTRY. C, Vol. 117, 2013, pag. 5269-5273.

Risultato della ricerca: Article

Alonzo, Giuseppe ; Palmisano, Leonardo ; Loddo, Vittorio ; Conte, Pellegrino ; Marsala, Valentina ; De Pasquale, Claudio ; Alonzo, Giuseppe ; Palmisano, Leonardo ; Conte, Pellegrino ; Marsala, Valentina ; Loddo, Vittorio ; De Pasquale, Claudio. / Nature of Interactions at the Interface of Two Water-Saturated Commercial TiO2 Polymorphs. In: JOURNAL OF PHYSICAL CHEMISTRY. C. 2013 ; Vol. 117. pagg. 5269-5273.
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abstract = "Two commercial TiO2 samples, a 100{\%} anatase and a 100{\%} rutile, were used for the fast field cycling NMR experiments. The results showed a different behavior between the different samples. In particular, water molecules were unbonded to the solid surface for the rutile sample, whereas they appeared to chemically interact with the surface through H-bond formation with the anatase sample. The above findings accord with the generally lower activity of rutile with respect to anatase reported in literature for photocatalytic oxidation reactions in water. The difficulty of water to interact with rutile surface, indeed, could hinder the formation of OH radicals, which are the most important oxidant species.",
author = "Giuseppe Alonzo and Leonardo Palmisano and Vittorio Loddo and Pellegrino Conte and Valentina Marsala and {De Pasquale}, Claudio and Giuseppe Alonzo and Leonardo Palmisano and Pellegrino Conte and Valentina Marsala and Vittorio Loddo and {De Pasquale}, Claudio",
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AU - Alonzo, Giuseppe

AU - Palmisano, Leonardo

AU - Loddo, Vittorio

AU - Conte, Pellegrino

AU - Marsala, Valentina

AU - De Pasquale, Claudio

AU - Alonzo, Giuseppe

AU - Palmisano, Leonardo

AU - Conte, Pellegrino

AU - Marsala, Valentina

AU - Loddo, Vittorio

AU - De Pasquale, Claudio

PY - 2013

Y1 - 2013

N2 - Two commercial TiO2 samples, a 100% anatase and a 100% rutile, were used for the fast field cycling NMR experiments. The results showed a different behavior between the different samples. In particular, water molecules were unbonded to the solid surface for the rutile sample, whereas they appeared to chemically interact with the surface through H-bond formation with the anatase sample. The above findings accord with the generally lower activity of rutile with respect to anatase reported in literature for photocatalytic oxidation reactions in water. The difficulty of water to interact with rutile surface, indeed, could hinder the formation of OH radicals, which are the most important oxidant species.

AB - Two commercial TiO2 samples, a 100% anatase and a 100% rutile, were used for the fast field cycling NMR experiments. The results showed a different behavior between the different samples. In particular, water molecules were unbonded to the solid surface for the rutile sample, whereas they appeared to chemically interact with the surface through H-bond formation with the anatase sample. The above findings accord with the generally lower activity of rutile with respect to anatase reported in literature for photocatalytic oxidation reactions in water. The difficulty of water to interact with rutile surface, indeed, could hinder the formation of OH radicals, which are the most important oxidant species.

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M3 - Article

VL - 117

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EP - 5273

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

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