The Effects of Non-thermal Plasma on the Morphology of Ce-doped ZnO: Synthesis, Characterization and Photocatalytic Activity of Hierarchical Nanostructures

2016 ◽  
Vol 37 (1) ◽  
pp. 159-176 ◽  
Author(s):  
Hadi Fallah Moafi ◽  
Mitra Hafezi ◽  
Sirous Khorram ◽  
Mohammad Ali Zanjanchi
Keyword(s):  
Photocatalytic Activity ◽  
Thermal Plasma ◽  
Hierarchical Nanostructures ◽  
Non Thermal Plasma ◽  
Doped Zno

scholarly journals Non-thermal plasma-assisted growth of ZnWO4 hierarchical nanostructures: morphology, structure and photoactivity

2020 ◽  
Keyword(s):  
Photocatalytic Activity ◽  
Thermal Plasma ◽  
Separation Efficiency ◽  
Longitudinal Direction ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Particle Size Reduction ◽  
Sem Images ◽  
Hierarchical Nanostructures ◽  
Non Thermal Plasma

<p>Zinc tungstate (ZnWO4) photocatalyst was synthesized by precipitation method and treated with different non-thermal plasma to study its morphology, structure and photocatalytic activity. The X-ray diffraction results revealed that the plasma-treated ZnWO4 exhibited only wolframite structure and its crystallinity was preserved. The SEM images of the samples demonstrated that the morphology of ZnWO4 was changed from non-uniform particle to flower and rod-like following plasma treatment. The enhanced photocatalytic activity of the treated ZnWO4 sample may be associated with the enhancement in the particle size reduction and increase of the surface area. Also, charge separation efficiency due to well-constructed space charge region along the longitudinal direction of the nano ZnWO4 may be affected the photocatalytic activity.</p>

Liquid-phase non-thermal plasma-prepared N-doped TiO2 for azo dye degradation with the catalyst separation system by ceramic membranes

2010 ◽  
Vol 62 (5) ◽  
pp. 1060-1066 ◽  
Author(s):  
Hsu-Hui Cheng ◽  
Shiao-Shing Chen ◽  
Yi-Wen Cheng ◽  
Wei-Lun Tseng ◽  
Yi-Hui Wang
Keyword(s):  
Photocatalytic Activity ◽  
Liquid Phase ◽  
Thermal Plasma ◽  
Membrane Separation ◽  
Dye Degradation ◽  
Ceramic Membranes ◽  
Doped Tio2 ◽  
Vis Spectroscopy ◽  
N Doping ◽  
Non Thermal Plasma

This study strived to improve the photocatalytic activity by using liquid-phase non-thermal plasma (LPNTP) technology for preparing N-doping TiO2 as well as to separate/recover the N-dope TiO2 particles by using ceramic ultrafiltration membrane process. The yellow color N-doped TiO2 photocatalysts, obtained through the LPNTP process, were characterized with UV–Vis spectroscopy, X-ray diffraction (XRD), and electron spectroscopy for chemical analysis (ESCA). The UV–Vis spectrum of N-doped TiO2 showed that the absorption band was shifted to 439 nm and the band gap was reduced to 2.82 eV. The structure analysis of XRD spectra showed that the peak positions and the crystal structure remained unchanged as anatase after plasma-treating at 13.5 W for 40 min. The photocatalytic activity of N-doped TiO2 was evaluated by azo dyes under visible light, and 63% of them was degraded after 16 hours in a continuous-flow photocatalytic system. For membrane separation/recover system, the recovery efficiency reached 99.5% after the ultrafiltration had been carried out for 90 min, and the result indicated that the photocatalyst was able to be separated/recovered completely.

scholarly journals The Effect of Non-Thermal Plasma on the Topographical and Optical Constants of Cd Doped ZnO Thin Films

2021 ◽  
Vol 1963 (1) ◽  
pp. 012037
Author(s):  
Khudheir A Mishjil ◽  
Ali H Abdulsada ◽  
Hayfa G Rashid ◽  
Hamid H Murbat ◽  
Nadir F Habubi
Keyword(s):  
Thin Films ◽  
Thermal Plasma ◽  
Optical Constants ◽  
Zno Thin Films ◽  
Non Thermal Plasma ◽  
Doped Zno

scholarly journals Non-thermal plasma effects on structural and optical properties of Cd doped ZnO thin films

2020 ◽  
Vol 871 ◽  
pp. 012061
Author(s):  
Khudheir A Mishjil ◽  
A H Abdulsada ◽  
H G Rashid ◽  
H L Mansour ◽  
H S Rasheed ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Thermal Plasma ◽  
Zno Thin Films ◽  
Structural And Optical Properties ◽  
Plasma Effects ◽  
Non Thermal Plasma ◽  
Doped Zno

Use of non-thermal plasma in lignocellulosic materials: A smart alternative

2021 ◽  
Vol 109 ◽  
pp. 365-373
Author(s):  
Gabriela N. Pereira ◽  
Karina Cesca ◽  
Anelise Leal Vieira Cubas ◽  
Débora de Oliveira
Keyword(s):  
Thermal Plasma ◽  
Lignocellulosic Materials ◽  
Non Thermal Plasma

Sunlight-driven enhanced photocatalytic activity of bandgap narrowing Sn-doped ZnO nanoparticles

2021 ◽  
Author(s):  
Nachimuthu Venkatesh ◽  
Santhan Aravindan ◽  
Karuppathevan Ramki ◽  
Govindhasamy Murugadoss ◽  
Rangasamy Thangamuthu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Zno Nanoparticles ◽  
Bandgap Narrowing ◽  
Doped Zno

Non-thermal pulsed plasma activated water: environmentally friendly way for efficient surface modification of semiconductor nanoparticles

2021 ◽  
Author(s):  
Pavel Galář ◽  
Josef Khun ◽  
Anna Fučíková ◽  
Kateřina Dohnalová ◽  
Tomáš Popelář ◽  
...  
Keyword(s):  
Surface Modification ◽  
Free Surface ◽  
Thermal Plasma ◽  
Environmentally Friendly ◽  
Semiconductor Nanoparticles ◽  
Reactive Species ◽  
Pulsed Plasma ◽  
Non Thermal Plasma ◽  
Plasma Activated Water

Non-thermal plasma activated water can be used for cheap, easy and chemicals-free surface modification of nanoparticles, with all the reactive species originating solely in air and water.

scholarly journals Non-thermal plasma-assisted hydrogenolysis of polyethylene to light hydrocarbons

2021 ◽  
Vol 150 ◽  
pp. 106274
Author(s):  
Libo Yao ◽  
Jaelynne King ◽  
Dezhen Wu ◽  
Steven S.C. Chuang ◽  
Zhenmeng Peng
Keyword(s):  
Thermal Plasma ◽  
Light Hydrocarbons ◽  
Non Thermal Plasma
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