Long‐Lasting Non‐hydrogenated Dark Titanium Dioxide: Medium Vacuum Anneal for Enhanced Visible Activity of Modified Multiphase Photocatalysts | Zendy

Ozer Lütfiye Y. | Zendy; Apostoleris Harry | Zendy; Ravaux Florent | Zendy; Shylin Sergii I. | Zendy; Mamedov Fikret | Zendy; Lindblad Andreas | Zendy; Johansson Fredrik O. L. | Zendy; Chiesa Matteo | Zendy; Sá Jacinto | Zendy; Palmisano Giovanni | Zendy

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Long‐Lasting Non‐hydrogenated Dark Titanium Dioxide: Medium Vacuum Anneal for Enhanced Visible Activity of Modified Multiphase Photocatalysts

Author(s) -

Ozer Lütfiye Y.,

Apostoleris Harry,

Ravaux Florent,

Shylin Sergii I.,

Mamedov Fikret,

Lindblad Andreas,

Johansson Fredrik O. L.,

Chiesa Matteo,

Sá Jacinto,

Palmisano Giovanni

Publication year - 2018

Publication title -

chemcatchem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.497

H-Index - 106

eISSN - 1867-3899

pISSN - 1867-3880

DOI - 10.1002/cctc.201800097

Subject(s) - rutile , brookite , materials science , titanium dioxide , photocatalysis , visible spectrum , photochemistry , oxide , chemical engineering , graphene , absorption (acoustics) , surface modification , oxygen , doping , nanotechnology , anatase , optoelectronics , catalysis , chemistry , composite material , metallurgy , organic chemistry , engineering

Multiphase TiO 2 was stably modified by vacuum treatment for a dramatic improvement in visible‐light absorption and photocatalytic reactivity. The samples were made of rutile‐brookite, bare or N doped, and were grown on reduced graphene oxide. The stable introduction of Ti 3+ species and oxygen vacancies resulting in mitigated electron–hole recombination was identified as the main responsible factor, along with a change in surface charges.

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