Origin of significant visible-light absorption properties of Mn-doped TiO2 thin films

Xia, Xin; Liu, Lu; Walton, Alex S.; Ward, Michael B.; Han, Xiaoping; Brydson, R.; Luo, Jikui; Shao, Guosheng

doi:10.1016/j.actamat.2012.01.006

Cited by 59 publications

(58 citation statements)

References 69 publications

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“…The highly clean surface from such a physical process also offers favourable sites for surface contamination from the environment. This was confirmed by a short period of in situ ion etching (Ar + ) within the XPS instrument, though ion etching tends to reduce metal oxides and one needs to be cautious in over-etching oxides for XPS analysis [41].…”

Section: Xps Analysismentioning

confidence: 92%

“…For improved accuracy in quantitative EDX measurement, the Cliff-Lorimer factors were calibrated using standard oxide samples of known compositions (stoichiometric CuO, SiO 2 ). Cross-section samples for transmission electron microscopy (TEM) was prepared using focused ion beam milling; details are presented elsewhere [41]. The TEM study was carried out using a Philips CM200 microscope with a field-emission source operating at 200 kV.…”

Section: Methodsmentioning

confidence: 99%

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Role of materials chemistry on the electrical/electronic properties of CuO thin films

et al. 2015

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Section: Xps Analysismentioning

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Role of materials chemistry on the electrical/electronic properties of CuO thin films

et al. 2015

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“…Chromium has been reported as an effective doping metal to modify TiO 2 for enhancing its photocatalytic activity [12][13][14][15]. Recent theoretical calculations showed that 3d transition metals have good potential as a substitutional dopant for TiO 2 because of their ability to induce significant spin polarization and reduce the energy gap of rutile by forming intermediate bands with adequate curvatures and density of states [16][17][18][19]. Different methods were used to prepare chromium-doped TiO 2 .…”

Section: Introductionmentioning

confidence: 99%

Efficient sunlight-driven photocatalytic activity of chromium TiO2 nanotube nanocomposites prepared by anodizing and chemical bath deposition

Ghayeb

Momeni

2015

J Mater Sci: Mater Electron

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Different chromium-sensitized TiO 2 nanotube (CrTNs) nanocomposites were fabricated by anodizing of titanium in combination with a chemical bath deposition and pyrolysis process. The morphology and structure were characterized by field-emission scanning electron microscopy, X-ray diffraction and energy dispersive X-ray spectroscopy. Optical properties were investigated by ultra UV-Vis diffuse reflectance spectra. The resulting CrTNs showed a tube diameter of 90-140 nm, wall thickness of 20-50 nm and tube lengths in the range of *30 lm. The photocatalytic activity of the CrTNs was evaluated by measuring the degradation of methylene blue dye under simulated sunlight conditions and compared with photocatalytic activity of bare titanium dioxide nanotubes. The sample CrTN-3, that formed by anodizing of titanium in ethylene glycol electrolyte and then soaked in a H 2 O/ethanol (4:1) solution containing 0.05 M CrCl 3 Á6H 2 O for 3 h at 70°C, exhibited better photocatalytic activity than other CrTNs samples. The process developed in this study is facile, reproducible, and inexpensive, and can be easily scaled up, thereby pioneering the fabrication of high performance photocatalysts with promising environmental applications.

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“…According to literature, the transition metal-doped TiO 2 nanoparticles, in particular Mn-doped TiO 2 nanoparticles, were tested for their optical, photo-catalytic, electrical, magnetic, and superhydrophilic properties (Ref [21][22][23][24][25][26]. Hence, the advanced properties of Mn-doped TiO 2 nanoparticles motivated to study the effect of 1% Mn-doped TiO 2 nanoparticles on the mechanical and corrosion behavior of Zn metal matrix.…”

Section: Introductionmentioning

confidence: 99%

Anticorrosion Performance of Electrochemically Produced Zn-1% Mn-Doped TiO2 Nanoparticle Composite Coatings

Kumar

Venkatesha

Pavithra

et al. 2015

J. of Materi Eng and Perform

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The Zn-TiO 2 composite coatings were electrodeposited on mild steel using sulfate plating bath dispersed with 1% Mn-doped TiO 2 nanoparticles. The agglomeration state and charge on the particles in plating condition were analyzed by zeta potential and particle size distribution measurements. The change in microstructure and morphology in composite coatings was analyzed by x-ray diffraction, energy-dispersive x-ray diffraction, and Scanning electron microscopic analyses. The corrosion behavior of the coatings was tested by electrochemical methods such as Tafel polarization and Electrochemical Impedance study. The increased charge transfer resistance with reduced corrosion rate was observed for composite coatings compared to pure zinc coating. The morphology and corrosion behavior of the composite coatings are correlated with pure zinc coating properties.

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Origin of significant visible-light absorption properties of Mn-doped TiO2 thin films

Cited by 59 publications

References 69 publications

Role of materials chemistry on the electrical/electronic properties of CuO thin films

Role of materials chemistry on the electrical/electronic properties of CuO thin films

Efficient sunlight-driven photocatalytic activity of chromium TiO2 nanotube nanocomposites prepared by anodizing and chemical bath deposition

Anticorrosion Performance of Electrochemically Produced Zn-1% Mn-Doped TiO2 Nanoparticle Composite Coatings

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