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Cover Picture: Fabrication of Predominantly Mn 4+ ‐Doped TiO 2 Nanoparticles under Equilibrium Conditions and Their Application as Visible‐Light Photocatalyts (Chem. Asian J. 7/2014)
Author(s) -
Wang Lijie,
Fan Jiajie,
Cao Zetan,
Zheng Yichao,
Yao Zhiqiang,
Shao Guosheng,
Hu Junhua
Publication year - 2014
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201490022
Subject(s) - dopant , visible spectrum , materials science , doping , absorption (acoustics) , band gap , photocatalysis , nanotechnology , fabrication , optoelectronics , photochemistry , chemistry , organic chemistry , medicine , alternative medicine , pathology , composite material , catalysis
Electronic structure tailoring plays a key role in enabling oxides with a wide band gap for effective applications in the fields of low‐cost photovoltaic cells and photocatalysis under visible light. To date, however, the overall picture for visible‐light absorption is still rather complicated, as the chemical states of dopants and native defects associated with oxygen deficiency vary with the synthetic conditions. In their Full Paper on page 1904 ff., Junhua Hu et al. use a near‐equilibrium fabrication process to control the chemical state of a transition metal dopant (Mn) as well as oxygen vacancies. This work sheds new light on the origin of the significant visible‐light absorption of TiO 2 through doping.