Sol–gel auto-combustion synthesis of samarium-doped TiO2 nanoparticles and their photocatalytic activity under visible light irradiation

2007 ◽  
Vol 137 (1-3) ◽  
pp. 189-194 ◽  
Author(s):  
Qi Xiao ◽  
Zhichun Si ◽  
Zhiming Yu ◽  
Guanzhou Qiu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Combustion Synthesis ◽  
Visible Light Irradiation ◽  
Sol Gel ◽  
Light Irradiation ◽  
Doped Tio2 ◽  
Auto Combustion

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.

Flame sprayed V-doped TiO2 nanoparticles with enhanced photocatalytic activity under visible light irradiation

2009 ◽  
Vol 151 (1-3) ◽  
pp. 220-227 ◽  
Author(s):  
Baozhu Tian ◽  
Chunzhong Li ◽  
Feng Gu ◽  
Haibo Jiang ◽  
Yanjie Hu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Doped Tio2

scholarly journals Visible-enhanced photocatalytic performance of CuWO4/WO3 hetero-structures: incorporation of plasmonic Ag nanostructures

2018 ◽  
Vol 42 (13) ◽  
pp. 11109-11116 ◽  
Author(s):  
R. Salimi ◽  
A. A. Sabbagh Alvani ◽  
N. Naseri ◽  
S. F. Du ◽  
D. Poelman
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Sol Gel ◽  
Light Irradiation ◽  
Photo Degradation ◽  
Gel Method ◽  
Sol Gel Method

A new plasmonic Ag hybridized CuWO4/WO3 heterostructured nanocomposite was successfully synthesized via a ligand-assisted sol gel method and the photocatalytic activity was evaluated by photo-degradation of methylene blue (MB) under visible light irradiation.

Hydrogen production from organic fatty acids using carbon-doped TiO2 nanoparticles under visible light irradiation

2018 ◽  
Vol 43 (9) ◽  
pp. 4335-4346 ◽  
Author(s):  
Yang Li ◽  
Liyuan Kuang ◽  
Dequan Xiao ◽  
Appala Raju Badireddy ◽  
Maocong Hu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Hydrogen Production ◽  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Doped Tio2 ◽  
Carbon Doped

scholarly journals Enhanced Photocatalytic Properties of PET Filaments Coated with Ag-N Co-Doped TiO2 Nanoparticles Sensitized with Disperse Blue Dyes

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 987 ◽  
Author(s):  
Hui Zhang ◽  
Qi Tang ◽  
Qingshan Li ◽  
Qingwen Song ◽  
Hailiang Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Tio2 Nanoparticles ◽  
Visible Light Irradiation ◽  
Reaction Rate Constant ◽  
Light Irradiation ◽  
Photocatalytic Properties ◽  
Blue Dye ◽  
Dye Sensitization ◽  
Doped Tio2 ◽  
Co Doped

In this study, the effects of disperse blue dye-sensitization on the photocatalytic properties of the Ag-N co-doped TiO2 nanoparticles loaded on polyethylene terephthalate (PET) filaments are investigated under visible light irradiation. The microstructure and photocatalytic properties of the as-synthesized TiO2 nanocomposites, as well as the as-prepared PET filaments, are systematically characterized. The photocatalytic performance of the PET filaments coated with the Ag-N co-doped TiO2 nanoparticles sensitized with disperse blue dyes is evaluated via its capacity of photo-degrading methyl orange (MO) dyes under visible light irradiation. It is found that the holes are the predominant reactive radical species and the hydroxyl and superoxide radicals play a subordinate role in the photocatalytic reaction process. The reaction rate constant of the photocatalytic composite filaments is nearly 4.0 times higher than that of the PET filaments loaded solely with TiO2 nanoparticles. The resultant photocatalytic composite filaments are evident to be capable of repeatedly photo-degrading MO dyes without losing its photocatalytic activity significantly.

Enhancement of the Photocatalytic Activity Under Visible-Light Irradiation over N-doped TiO2 Modified by Platinum Chloride

2007 ◽  
Vol 122 (1-2) ◽  
pp. 33-36 ◽  
Author(s):  
Shinya Higashimoto ◽  
Kazuyoshi Takamatsu ◽  
Masashi Azuma ◽  
Masaaki Kitano ◽  
Masaya Matsuoka ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Doped Tio2
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