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

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.

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Facile synthesis of N-doped TiO2 nanoparticles caged in MIL-100(Fe) for photocatalytic degradation of organic dyes under visible light irradiation

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2017.05.012 ◽

2017 ◽

Vol 5 (3) ◽

pp. 2579-2585 ◽

Cited By ~ 36

Author(s):

Jie Huang ◽

Haiyan Song ◽

Chunxia Chen ◽

Yi Yang ◽

Ningdi Xu ◽

...

Keyword(s):

Visible Light ◽

Photocatalytic Degradation ◽

Tio2 Nanoparticles ◽

Visible Light Irradiation ◽

Organic Dyes ◽

Light Irradiation ◽

Facile Synthesis ◽

Doped Tio2

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Synthesis of Metal Ion-Doped TiO2 Nanoparticles Using Two-Phase Method and Their Photocatalytic Activity Under Visible Light Irradiation

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2016.11971 ◽

2016 ◽

Vol 16 (2) ◽

pp. 1911-1915 ◽

Cited By ~ 8

Author(s):

Duy-Trinh Nguyen ◽

Seong-Soo Hong

Keyword(s):

Photocatalytic Activity ◽

Visible Light ◽

Tio2 Nanoparticles ◽

Visible Light Irradiation ◽

Metal Ion ◽

Light Irradiation ◽

Phase Method ◽

Two Phase ◽

Doped Tio2

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Enhanced hydrogen production by carbon-doped TiO2 decorated with reduced graphene oxide (rGO) under visible light irradiation

RSC Advances ◽

10.1039/c5ra26096e ◽

2016 ◽

Vol 6 (3) ◽

pp. 2479-2488 ◽

Cited By ~ 22

Author(s):

Liyuan Kuang ◽

Wen Zhang

Keyword(s):

Photocatalytic Activity ◽

Graphene Oxide ◽

Hydrogen Production ◽

Visible Light ◽

Reduced Graphene Oxide ◽

Visible Light Irradiation ◽

Light Irradiation ◽

Hybrid Nanocomposite ◽

Carbon Doped ◽

Reduced Graphene

Carbon doped TiO2 anchored to reduced graphene oxide formed a hybrid nanocomposite (C-TiO2/rGO) that exhibited greater photocatalytic activity and stability.

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

Materials ◽

10.3390/ma12162589 ◽

2019 ◽

Vol 12 (16) ◽

pp. 2589 ◽

Cited By ~ 7

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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