Improvement of Performance of Traditional Photocatalysis and Development of New Photocatalysis Materials and Technologies

2014 ◽  
Vol 496-500 ◽  
pp. 376-379
Author(s):  
Wei You
Keyword(s):  
Visible Light ◽  
Porous Materials ◽  
High Voltage ◽  
Broad Spectrum ◽  
High Power ◽  
Plasma Generator ◽  
Negative Ion ◽  
Grain Refining ◽  
High Efficacy ◽  
Broad Energy

Progresses of novel photocatalysis materials and technologies were introduced in this paper. Efficacy-strengthening technologies of TiO2photocatalysts include grain-refining and preparation of porous materials, improvement of visible light-responsive ability. Moreover, researchers are developing novel photocatalysts materials and equipments with high efficacy, novel photocatalysis materials include small gap materials, new-serie photocatalysis materials, some natural compounds, broad-spectrum photocatalysts and broad-energy and energy-sensitive catalysts, etc, in addition, high-efficacy controllable high-power environment-cleaning equipments such as high-voltage negative-ion generator and plasma generator have been developed to dispose heavy pollutants in industrial fields.

Research Progresses and Development Trends of High-Efficacy Photocatalysts

2014 ◽  
Vol 496-500 ◽  
pp. 532-535
Author(s):  
Wei You
Keyword(s):  
Broad Spectrum ◽  
High Power ◽  
High Efficacy ◽  
Development Trends ◽  
The Future ◽  
Broad Energy

Progresses of research on high-efficacy photocatalyst were introduced in this paper. Firstly, efficiency-strengthening methods of TiO2-serie photocatalysts were summarized basing on collected literatures, including photosensitization, alloying, moreover, novel photocatalysis materials and technologies and probable development tendencies in the future were introduced, such as broad-spectrum photocatalysts, broad-energy and energy-sensitive catalysts and high-efficacy controllable high-power photocatalysis materials and equipments.

Visible-light communication using high-power LED panel-lamp and low-complexity MOSFET circuit

2021 ◽  
Vol 53 (1) ◽  
Author(s):  
Huamao Huang ◽  
Tianxiang Lan ◽  
Cheng Huang ◽  
Chao Wang ◽  
Chukun Huang ◽  
...  
Keyword(s):  
Visible Light ◽  
High Power ◽  
Visible Light Communication ◽  
Low Complexity ◽  
High Power Led

scholarly journals Negative ion beam acceleration and transport in the high voltage injector prototype

2021 ◽  
Author(s):  
O. Sotnikov ◽  
A. Sanin ◽  
Yu. Belchenko ◽  
A. A. Ivanov ◽  
G. Abdrashitov ◽  
...  
Keyword(s):  
High Voltage ◽  
Ion Beam ◽  
Negative Ion

scholarly journals High Power Impulse Magnetron Sputtering of In2O3/Sn Cold Sprayed Composite Target

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1228
Author(s):  
Marcin Winnicki ◽  
Artur Wiatrowski ◽  
Michał Mazur
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
High Voltage ◽  
High Power ◽  
Power Supply ◽  
Indium Tin Oxide ◽  
Volume Ratio ◽  
Cold Spraying ◽  
High Voltage Power Supply ◽  
Composite Target

High Power Impulse Magnetron Sputtering (HiPIMS) was used for deposition of indium tin oxide (ITO) transparent thin films at low substrate temperature. A hybrid-type composite target was self-prepared by low-pressure cold spraying process. Prior to spraying In2O3 and oxidized Sn powders were mixed in a volume ratio of 3:1. Composite In2O3/Sn coating had a mean thickness of 900 µm. HiPIMS process was performed in various mixtures of Ar:O2: (i) 100:0 vol.%, (ii) 90:10 vol.%, (iii) 75:25 vol.%, (iv) 50:50 vol.%, and (v) 0:100 vol.%. Oxygen rich atmosphere was necessary to oxidize tin atoms. Self-design, simple high voltage power switch capable of charging the 20 µF capacitor bank from external high voltage power supply worked as a power supply for an unbalanced magnetron source. ITO thin films with thickness in the range of 30–40 nm were obtained after 300 deposition pulses of 900 V and deposition time of 900 s. The highest transmission of 88% at λ = 550 nm provided 0:100 vol. % Ar:O2 mixture, together with the lowest resistivity of 0.03 Ω·cm.

scholarly journals High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

2018 ◽  
Vol 26 (9) ◽  
pp. 11265 ◽  
Author(s):  
Jean-Christophe Delagnes ◽  
Romain Royon ◽  
Jérôme Lhermite ◽  
Giorgio Santarelli ◽  
Hector Muñoz ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Visible Light ◽  
High Power ◽  
Photonic Crystal Fibers ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Crystal Fibers
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