scholarly journals X-ray spectroscopic study of the electronic structure of visible-light responsive N-, C- and S-doped TiO2

2008 ◽  
Vol 162 (2) ◽  
pp. 67-73 ◽  
Author(s):  
Xiaobo Chen ◽  
Per-Anders Glans ◽  
Xiaofeng Qiu ◽  
Smita Dayal ◽  
Wayne D. Jennings ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Visible Light ◽  
Spectroscopic Study ◽  
Doped Tio2 ◽  
X Ray

scholarly journals High-resolution x-ray spectroscopic study of the electronic structure of the prototypicalp-type transparent conducting oxideCuAlO2

2005 ◽  
Vol 72 (19) ◽  
Author(s):  
D. J. Aston ◽  
D. J. Payne ◽  
A. J. H. Green ◽  
R. G. Egdell ◽  
D. S. L. Law ◽  
...  
Keyword(s):  
Electronic Structure ◽  
High Resolution ◽  
Spectroscopic Study ◽  
X Ray ◽  
Transparent Conducting

scholarly journals The Photocatalytic and Antibacterial Performance of Nitrogen-Doped TiO2: Surface-Structure Dependence and Silver-Deposition Effect

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2261 ◽  
Author(s):  
Abdul Wafi ◽  
Erzsébet Szabó-Bárdos ◽  
Ottó Horváth ◽  
Mihály Pósfai ◽  
Éva Makó ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Visible Light ◽  
Surface Area ◽  
Photocatalytic Performance ◽  
Visible Region ◽  
Bet Surface Area ◽  
Doped Tio2 ◽  
X Ray ◽  
Nitrogen Doped ◽  
Visible Light Driven

Catalysts for visible-light-driven oxidative cleaning processes and antibacterial applications (also in the dark) were developed. In order to extend the photoactivity of titanium dioxide into the visible region, nitrogen-doped TiO2 catalysts with hollow and non-hollow structures were synthesized by co-precipitation (NT-A) and sol–gel (NT-U) methods, respectively. To increase their photocatalytic and antibacterial efficiencies, various amounts of silver were successfully loaded on the surfaces of these catalysts by using a facile photo-deposition technique. Their physical and chemical properties were evaluated by using scanning electron microscopy (SEM), transmission electron microscopy–energy dispersive X-ray spectroscopy (TEM–EDS), Brunauer–Emmett–Teller (BET) surface area, X-ray diffraction (XRD), and diffuse reflectance spectra (DRS). The photocatalytic performances of the synthesized catalysts were examined in coumarin and 1,4-hydroquinone solutions. The results showed that the hollow structure of NT-A played an important role in obtaining high specific surface area and appreciable photoactivity. In addition, Ag-loading on the surface of non-hollow structured NT-U could double the photocatalytic performance with an optimum Ag concentration of 10−6 mol g−1, while a slight but monotonous decrease was caused in this respect for the hollow surface of NTA upon increasing Ag concentration. Comparing the catalysts with different structures regarding the photocatalytic performance, silverized non-hollow NT-U proved competitive with the hollow NT-A catalyst without Ag-loading for efficient visible-light-driven photocatalytic oxidative degradations. The former one, due to the silver nanoparticles on the catalyst surface, displayed an appreciable antibacterial activity, which was comparable to that of a reference material practically applied for disinfection in polymer coatings.

X-ray Absorption Spectroscopic Study on the Electronic Structure of Li1-xCoPO4Electrodes as 4.8 V Positive Electrodes for Rechargeable Lithium Ion Batteries

2005 ◽  
Vol 109 (22) ◽  
pp. 11197-11203 ◽  
Author(s):  
Masanobu Nakayama ◽  
Satoshi Goto ◽  
Yoshiharu Uchimoto ◽  
Masataka Wakihara ◽  
Yoshinori Kitajima ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Spectroscopic Study ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Positive Electrodes ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Electronic structure of boron doped diamond: An x-ray spectroscopic study

2013 ◽  
Vol 102 (16) ◽  
pp. 162103 ◽  
Author(s):  
P.-A. Glans ◽  
T. Learmonth ◽  
K. E. Smith ◽  
S. Ferro ◽  
A. De Battisti ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Spectroscopic Study ◽  
Boron Doped Diamond ◽  
X Ray ◽  
Boron Doped

Effects of bond character on the electronic structure of brownmillerite-phase oxides, Ca2B′xFe2−xO5 (B′ = Al, Ga): an X-ray absorption and electron energy loss spectroscopic study

2009 ◽  
Vol 19 (48) ◽  
pp. 9213 ◽  
Author(s):  
Andrew P. Grosvenor ◽  
Farshid Ramezanipour ◽  
Shahab Derakhshan ◽  
Christian Maunders ◽  
Gianluigi A. Botton ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Energy Loss ◽  
Spectroscopic Study ◽  
Electron Energy ◽  
X Ray ◽  
Electron Energy Loss ◽  
X Ray Absorption ◽  
Bond Character

Electronic structure of thiaporphyrins: an X-ray photoelectron spectroscopic study

1996 ◽  
pp. 1255 ◽  
Author(s):  
Chinnakonda S. Gopinath ◽  
Ramasamy P. Pandian ◽  
Periakaruppan T. Manoharan
Keyword(s):  
Electronic Structure ◽  
Spectroscopic Study ◽  
X Ray

scholarly journals Development of Smart Composites Based on Doped-TiO2 Nanoparticles with Visible Light Anticancer Properties

Materials ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 2589 ◽  
Author(s):  
Evdokia Galata ◽  
Eleni A. Georgakopoulou ◽  
Maria-Emmanouela Kassalia ◽  
Nefeli Papadopoulou-Fermeli ◽  
Evangelia A. Pavlatou
Keyword(s):  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Ultra Violet ◽  
Light Irradiation ◽  
Composite Particles ◽  
Doped Tio2 ◽  
X Ray ◽  
Anticancer Properties

In this study, the synthesis of smart, polymerically embedded titanium dioxide (TiO2) nanoparticles aimed to exhibit photo-induced anticancer properties under visible light irradiation is investigated. The TiO2 nanoparticles were prepared by utilizing the sol gel method with different dopants, including nitrogen (N-doped), iron (Fe-doped), and nitrogen and iron (Fe,N-doped). The dopants were embedded in an interpenetrating (IP) network microgel synthesized by stimuli responsive poly (N-Isopropylacrylamide-co-polyacrylicacid)–pNipam-co-PAA forming composite particles. All the types of produced particles were characterized by X-ray powder diffraction, micro-Raman, Fourier-transform infrared, X-ray photoelectron, ultra-violet-visible spectroscopy, Field Emission Scanning Electron, Transmission Electron microscopy, and Dynamic Light Scattering techniques. The experimental findings indicate that the doped TiO2 nanoparticles were successfully embedded in the microgel. The N-doped TiO2 nano-powders and composite particles exhibit the best photocatalytic degradation of the pollutant methylene blue under visible light irradiation. Similarly, the highly malignant MDA-MB-231 breast cancer epithelial cells were susceptible to the inhibition of cell proliferation at visible light, especially in the presence of N-doped powders and composites, compared to the non-metastatic MCF-7 cells, which were not affected.

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