ABO<sub>4</sub> type scheelite phases in (Ca/Sr)MoO<sub>4</sub> - BiVO<sub>4</sub> - Bi<sub>2</sub>Mo<sub>3</sub>O<sub>12</sub> systems: synthesis, structure and optical properties
نویسندگان
چکیده
The cation deficient complex oxides of (Ca/Sr)MoO4 - BiVO4 Bi2Mo3O12 triple system are promising photocatalysts and pigments. Compounds with general formula Ca1−1.5x-yBix+yФxMo1-yVyO4 Sr1−1.5x-yBix+yФxMo1-yVyO4 were synthesized byconvention solid state technique in the range 550–720 °C. Two wide regions solutions (ordinary superstructured scheelite-type phases respectively) found for each system. diffuse scatering homogeneous samples was investigated 190–1100 nm. Energy gaps calculated linear approximation Kubelka-Munk function decreases bismuth vanadium content.
منابع مشابه
Scheelite-type NaEr(MoO4)2
Explorations of the A(1+)-RE(3+)-Mo(6+)-O(2-) (A(1+) is an alkali metal cation, RE(3+) is a rare-earth metal cation) quaternary systems prepared by the high-temperature solution growth method led to the title structure, sodium erbium bis-(molyb-date), NaEr(MoO(4))(2). It is isostructural to the scheelite structure (CaWO(4)) and is composed of [MoO(4)](2-) tetra-hedra with symmetry and [(Na/Er)O...
متن کاملSynthesis of BiVO4 nanoparticles by the co-precipitation method and study the crystal structure, optical and photocatalytic properties of them
In this paper, the bismuth vanadate (BiVO4) nanoparticles were synthesized at 600 °C calcination temperature by co-precipitation method. To study the crystal structure, morphology, optical and photocatalytic properties of the samples, the X-ray diffraction analysis, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy and ult...
متن کاملSynthesis, structure, and nonlinear optical properties of diarylpolyynes.
A series of alpha,omega-diarylpolyynes has been synthesized. In addition to the synthesis of three hexaynes (3a-c), a notably improved synthesis of 1,16-diphenylhexadecaoctayne (5) is described. The third-order nonlinear optical characteristics for these molecules have been studied and show a substantial increase in molecular hyperpolarizability (gamma) as a function of increasing length. The u...
متن کاملSynthesis, structure and optical properties of rare-earth benzene carboxylates.
Two series of rare-earth isophthalates of the general formula, [M(2)(H(2)O)][{C(6)H(4)(COO)(2)}(2){C(6)H(4)(COOH)(COO)}(2)].H(2)O, M=La (I), Pr (Ia), and Nd (Ib) and [M(2)(H(2)O)(2)][{C(6)H(4)(COO)(2)}(3)].H(2)O, M=Y (II), Gd (IIa), and Dy (IIb) have been prepared by the reaction of the corresponding trivalent lanthanide salts and isophthalic acid under mild hydrothermal conditions. The La (I),...
متن کاملSOLVOTHERMAL SYNTHESIS AND OPTICAL PROPERTIES OF WURTZITE-TYPE CdS NANORODS
Cadmium sulfide (CdS) nanorods were synthesized by simple solvothermal reactions at 200 C for 12-24 h using Cd(NO3)2·4H2O and NH2CSNH2 as starting materials and (C2H5)2NH as solvent. XRD and TEM analysis show a hexagonal-phase single crystalline CdS nanorods with diameter of 20 nm and length of 100-200 μm. UV-visible absorption of as-prepared CdS nanorods presented an absorption peak of around ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chimica techno acta
سال: 2021
ISSN: ['2411-1414', '2409-5613']
DOI: https://doi.org/10.15826/chimtech.2021.8.2.04