Synthesis of Mineral-Like SrWO4 Ceramics with the Scheelite Structure and a Radioisotope Product Based on It

2021 ◽  
Vol 66 (9) ◽  
pp. 1434-1446
Author(s):  
E. K. Papynov ◽  
O. O. Shichalin ◽  
A. A. Belov ◽  
I. Yu. Buravlev ◽  
A. S. Portnyagin ◽  
...  
Keyword(s):  
Scheelite Structure

Luminescence investigation of Eu3+ activated double molybdates red phosphors with scheelite structure

2007 ◽  
Vol 432 (1-2) ◽  
pp. 308-312 ◽  
Author(s):  
Zhengliang Wang ◽  
Hongbin Liang ◽  
Menglian Gong ◽  
Qiang Su
Keyword(s):  
Scheelite Structure ◽  
Red Phosphors ◽  
Luminescence Investigation

Visible-Light-Induced Photocatalytic Activity of Boron-Doped BiVO4

2014 ◽  
Vol 809-810 ◽  
pp. 890-894
Author(s):  
Dan Li ◽  
Lian Wei Shan ◽  
Gui Lin Wang ◽  
Li Min Dong ◽  
Wei Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Sol Gel ◽  
Reflectance Spectroscopy ◽  
Scheelite Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Boron Doped

Boron-BiVO4 samples were synthesized by sol-gel method. They were characterized by UV-vis diffuse reflectance spectroscopy, X-ray diffraction. Photocatalytic activity of the obtained BiVO4 samples was investigated through degrading methylene blue (MB). The results reveal that boron-BiVO4 catalysts have monoclinic scheelite structure. The BiVO4 and Co-BiVO4 photocatalysts were responsive to visible light. Co-BiVO4 photocatalyst showed higher photocatalytic activity than pure BiVO4, resulting in the significantly improved efficiency of degradation of MB.

Transport properties of materials with the scheelite structure and their modification by doping

Ionics ◽  
1995 ◽  
Vol 1 (2) ◽  
pp. 131-135 ◽  
Author(s):  
L. Hoffart ◽  
U. Heider ◽  
L. Jörissen ◽  
R. A. Huggins ◽  
W. Witschel
Keyword(s):  
Transport Properties ◽  
Scheelite Structure ◽  
Properties Of Materials

Solvothermal Preparation of Nano-Sized CaWO4 Particles

2007 ◽  
Vol 124-126 ◽  
pp. 1265-1268 ◽  
Author(s):  
Sulawan Kaowphong ◽  
Titipun Thongtem ◽  
Somchai Thongtem
Keyword(s):  
Pure Water ◽  
Solvothermal Reaction ◽  
Hrtem Image ◽  
Scheelite Structure ◽  
Glycerol Water ◽  
Calcium Salts ◽  
Solvothermal Preparation

CaWO4 was prepared by solvothermal reaction of Na2WO4.2H2O and calcium salts (CaCl2.2H2O, Ca(NO3)2.4H2O and Ca(CH3COO)2) in solvent containing a variety of glycerol/water ratios at 160 oC for 6 h. By using XRD, SEM, TEM and ED, the products compose of nano-sized CaWO4 particles with scheelite structure but different morphologies. Interplanar spaces between (101) planes were determined from HRTEM image, ED patterns and XRD spectra are 0.424, 0.474 and 0.476 nm, respectively. Luminescent intensities of the products prepared in pure water are the highest and their central peaks are the same at 444 nm. In addition, Ca, W and O were detected using EDX.

Brillouin scattering study of the ferroelastic transition in some crystals with the scheelite structure

1983 ◽  
Vol 52 (1) ◽  
pp. 59-65 ◽  
Author(s):  
Toshiro Yagi ◽  
Akikatsu Sawada ◽  
Yoshihiro Ishibashi
Keyword(s):  
Brillouin Scattering ◽  
Scheelite Structure ◽  
Scattering Study
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