Electron beam irradiation treatment of Ag/Bi2WO6/CdWO4 heterogeneous material with enhanced photocatalytic activity

2019 ◽  
Vol 43 (35) ◽  
pp. 13764-13774 ◽  
Author(s):  
Renrui Sun ◽  
Jing Wang ◽  
Tianli Yang ◽  
Ren He ◽  
Kehui Xue ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Electron Beam ◽  
Organic Pollutants ◽  
Electron Beam Irradiation ◽  
Heterogeneous Material ◽  
Beam Irradiation ◽  
Highly Efficient ◽  
Irradiation Treatment ◽  
Inorganic And Organic

Ag/Bi2WO6/CdWO4 ternary heterostructure materials treated by electron beam irradiation are used for the highly efficient degradation of inorganic and organic pollutants.

Characterization of Electron Beam Irradiated Polyvinylpyrrolidone-Dextran (PVP/DEX) Blends

2012 ◽  
Vol 188 ◽  
pp. 102-108 ◽  
Author(s):  
Maria Dumitraşcu ◽  
Mădălina Georgiana Albu ◽  
Marian Vîrgolici ◽  
Cătălin Vancea ◽  
Viorica Meltzer
Keyword(s):  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Polymeric Materials ◽  
Beam Irradiation ◽  
Molecular Weights ◽  
The Past ◽  
Polymeric Blends ◽  
Irradiation Treatment ◽  
Ft Ir

In the past years an increased interest to create new polymeric blends with application in the medical area for development of new types of biomaterials has appeared. Electron beam irradiation is well known as a method of producing important changes in polymer structure, being an alternative to chemical synthesis of biomaterials based on polymeric materials. The aim of the present study was to investigate the behaviour of some polyvinylpyrrolidone-dextran (PVP/DEX) blends under electron beam irradiation. Aqueous solutions of PVP with molecular weights of 360 000 Da (PVP 360), 40 000 Da (PVP 40), and DEX with molecular weight of 500 000 Da (DEX), were mixed as to obtain 50:50 blends of PVP40/DEX and PVP360/DEX. The obtained blends were irradiated with electron beam at different radiation doses and after irradiation treatment were processed by freeze-drying. PVP/DEX blends were characterized by infrared spectroscopy (FT-IR) and thermal analysis. The analyses were conducted in order to establish the relation between radiation dose and changes of structural and thermal properties.

The Effects of Electron Beam Irradiation on Structural and Optical Properties of TiO2 Particles

2017 ◽  
Vol 888 ◽  
pp. 297-303 ◽  
Author(s):  
Cik Rohaida Che Hak ◽  
Siti Salwa Zainal Abidin ◽  
Nur Ubaidah Saidin ◽  
Siti Aishah Ahmad Fuzi ◽  
Yusof Abdullah ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Optical Properties ◽  
Photocatalytic Activity ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Low Dose ◽  
Beam Irradiation ◽  
Structural And Optical Properties ◽  
Dose Irradiation ◽  
Indirect Band Gap

The effect of electron irradiation on structural and optical properties of TiO2 particles has been studied. The crystallinity change was observed at low dose irradiation (4-20 kGy) while phase transformation from pure anatase to mixture of anatase-rutile was inevitable after 100 kGy without significant change in crystallinity. The highest fraction of rutile:anatase ratio was 20:80 obtained at 700 kGy. Morphology study demonstrated that TiO2 particles were spherical, nano-sized and heavily agglomerated with no obvious microstructural changes were observed after irradiation. The direct and indirect band gap (Eg) showed a decrement at low dose but re-increased after irradiation at >100 kGy. The highest Eg was at 700 kGy which can be explained by the changes of TiO2 atomic structure in the presence of mixture anatase:rutile. Therefore, the electron beam irradiation does affect both structural and optical properties of TiO2 nanoparticles. This is expected to affect the photocatalytic activity of TiO2.

Effectiveness of hydrogen peroxide and electron-beam irradiation treatment for removal and inactivation of viruses in equine-derived xenografts

2016 ◽  
Vol 232 ◽  
pp. 39-46 ◽  
Author(s):  
Riccardo Cusinato ◽  
Monia Pacenti ◽  
Thomas Martello ◽  
Paolo Fattori ◽  
Marco Morroni ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Beam ◽  
Electron Beam Irradiation ◽  
Beam Irradiation ◽  
Irradiation Treatment

Electron Beam Irradiation Effect on the Photocatalytic Activity of TiO2 on Carbon Nanofibers

2011 ◽  
Vol 11 (2) ◽  
pp. 1438-1442 ◽  
Author(s):  
Bo-Hye Kim ◽  
Chang Hyo Kim ◽  
Kap Seung Yang ◽  
Byung Cheol Lee ◽  
Hee-Gweon Woo
Keyword(s):  
Photocatalytic Activity ◽  
Electron Beam ◽  
Carbon Nanofibers ◽  
Electron Beam Irradiation ◽  
Irradiation Effect ◽  
Beam Irradiation
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