46140-16-3Relevant articles and documents
A facile route to the synthesis of BiFeO3 at low temperature
Liu, Ting,Xu, Yebin,Feng, Shangshen,Zhao, Jingyuan
, p. 3060 - 3063 (2011)
A facile sol-gel methodology based on the glycerol-gel reaction was used to prepare single-phase BiFeO3 crystallites. The particle size and morphologies of BiFeO3 crystallites were characterized by field-emission scanning electron mi
Single crystal growth and characterization of a new bismuth indium niobate compound, Bi5In2Nb3O18-x
Zou, Zhigang,Ye, Jinhua
, p. 72 - 76 (1999)
Single crystals of a new bismuth indium niobate, Bi5In2Nb3O18-x, were grown by subsolidus reaction method. Differential thermal analysis measurements indicate that the compound has a melting point of 1224 °C. Single crystal and powder X-ray diffraction methods show that the compound has the tetragonal system; P4/mbm space group, and lattice constants are a = 12.6548(5), and c = 3.9231(3) angstroms. The magnetic susceptibilities of compound Bi5In2Nb3O18-x indicate Curie-Weiss behavior with an effective magnetic moment μeff = 0.72(1) μB.
Standard molar enthalpy of formation of [(C12H8N2)2Bi(O2NO)3] and its biological activity on Schizosaccharomyces pombe
Li, Chuan-Hua,Jiang, Yong,Jiang, Jian-Hong,Li, Xu,Xiao, Sheng-Xiong,Tao, Li-Ming,Yao, Fei-Hong,Zhang, Hui,Xia, Xian-Ming,Yao, Long-Hua,Zhou, Hua,Xiang, Ying-Hui,Tian, Yuan,Li, Qiang-Guo
, p. 1743 - 1751 (2017)
The title complex [(C12H8N2)2Bi(O2NO)3] was synthesized by reaction of 1,10-phenanthroline (phen) and Bi(NO3)3·5H2O. The structure of the complex was charac
Enhanced red light emission from LaBSiO5:Eu3+,R 3+ (R = Bi or Sm) phosphors
Xue,Xiao,Zhang
, p. 607 - 611 (2011)
Polycrystalline LaBSiO5:Eu3+,R3+ (R = Bi or Sm) phosphors have been synthesized by a facile sol-gel method. The phosphors have been characterized by thermogravimetric analysis/different scanning calorimeter, scanning electron microscopy, X-ray diffractometer and fluorescence measurements. It was found that the emission intensity of LaBSiO5:Eu phosphors increases clearly and reaches a maximum at 30 mol% with increasing of Eu3+ concentration. The incorporation of Bi3+ ions and/or Sm3+ ions have greatly enhanced the emission intensity of Eu 3+ upon excitation with 391 nm light. The possible sensitization mechanisms of Sm3+ and/or Bi3+ on Eu3+ emission intensity have been investigated and discussed. The high brightness and short luminescence decay times make it promising red-emitting candidates for white light-emitting diodes.
Energy transfer study in GdVO4: Bi3+, Yb3+ obtained by microwave-assisted hydrothermal method
Lenczewska, Katarzyna,Ptak, Maciej,Boiko, Vitalii,Ledwa, Karolina,Hreniak, Dariusz
, (2021)
Influence of dopants on the structure, morphology and luminescence properties, and in particular the energy transfer mechanism of GdVO4 co-doped with Bi3+ and Yb3+ ions is discussed. Submicro- and microcrystals were prepared by the microwave-assisted hydrothermal method. Phase purity, size and structure of obtained samples were characterized by the X-ray powder diffraction and the transmission electron microscopy. Luminescence properties were investigated by analyzing photoluminescence and excitation spectra and decay time curves. Intense yellow-green luminescence from Bi3+ ions in the range of 400–800 nm and the near-infrared emission from Yb3+ ions about 1000 nm upon an indirect excitation via the (O2?–V5+) charge transfer state at 266 nm and via the (Bi3+–V5+) charge transfer state at 330 nm was recorded. No concentration quenching effect was observed in the samples doped with up to 7 mol% of Yb3+ ions. The near-ultraviolet sensitized near-infrared emission has been explained by the energy transfer from the GdVO4 host and Bi3+ ions to Yb3+ ions. The energy transfer processes between the host and dopants ions have been characterized in detail. The impact of phonon-assisted processes on the near infrared Yb3+ emission has been investigated. The obtained spectroscopic characteristics prove that GdVO4 co-doped with Bi3+ and Yb3+ ions is a promising candidate for use as the phosphor in luminescent concentrators in photovoltaic applications, which can increase the efficiency of silicon-based solar cells.
Precipitation of bismuth(III) salicylates from mineral acid solutions
Timakova,Udalova,Yukhin
, p. 873 - 880 (2009)
Powder X-ray diffraction, IR spectroscopy, Raman spectroscopy, thermogravimetry, and chemical analysis were used to study the precipitation of bismuth(III) salicylates from perchloric, nitric, and hydrochloric acid solutions as dependent on the salicylate
Dual-center thermochromic Bi2MoO6:Yb3+, Er3+, Tm3+ phosphors for ultrasensitive luminescence thermometry
Zheng, Teng,Runowski, Marcin,Stopikowska, Natalia,Skwierczyńska, Ma?gorzata,Lis, Stefan,Du, Peng,Luo, Laihui
, (2021/09/10)
Optical thermometers are of great interest due to their non-contact, high-sensitivity and fast measurement characteristics. In this work, a series of dual-center Bi1.96?xMoO6: 0.02Er3+, 0.02Tm3+, xYb3+ (x = 0.10–0.35) upconverting materials were prepared by a sol-gel synthesis method. Upon 975 nm excitation, the prepared materials exhibit bright color-tunable (from yellow to orange) upconversion (UC) emissions, as the Yb3+ content increases. The thermometric properties of the synthesized materials associated with different thermally-coupled and non-thermally coupled levels of Tm3+ and Er3+ were systematically investigated. Based on the temperature-dependent emissions originating from the non-thermally coupled levels of Tm3+ (3F2,3) and Er3+ (4F9/2), i.e., their band intensity ratios 700/670 nm, the developed optical thermometers were found to exhibit an exceptional relative thermal sensitivity (Sr), up to 5.90% K?1 at 293 K. Importantly, in the whole T-range of 293–623 K, the Sr values are larger than 2% K?1. Furthermore, it is revealed that the position of the Tm3+ emission band, centered around 800 nm is highly dependent on temperature, and, so, it can be utilized as a second thermometric parameter, which is important for a multi-parameter temperature sensing in the T-range of 293–623 K. These results suggest that Er3+/Tm3+/Yb3+-doped Bi2MoO6 materials are promising candidates for ultra-sensitive, dual mode optical thermometers and safety sign applications.
Preparation and Photocatalytic Properties of β-Bi2O3/Bi2SiO5 Heterostructures
Arefieva, O. D.,Lukiyanchuk, I. V.,Pisartseva, A. I.,Sedinkina, E. S.,Vasilyeva, M. S.,Zemnukhova, L. A.
, p. 943 - 949 (2021/07/30)
Abstract: Oxide heterostructure photocatalysts Bi2O3/Bi2SiO5 have been prepared by mechanical stirring of anhydrous bismuth nitrate and biogenic silica from rice husk (BiSi?X, Х = 1–50% SiO2) followed
Preparation method of bismuth subgallate
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Paragraph 0031, (2017/05/27)
The invention provides a preparation method of bismuth subgallate, comprising the following steps: Step (1), adding bismuth trioxide into concentrated nitric acid to dissolve bismuth trioxide, and then adding deionized water to obtain a bismuth nitrate solution; Step (2) adding deionized water into gallic acid to dissolve gallic acid so as to obtain a gallic acid aqueous solution; Step (3), adding the gallic acid aqueous solution into the bismuth nitrate solution at the molar ratio of gallic acid in the gallic acid aqueous solution to bismuth nitrate in the bismuth nitrate solution being 1.1:1-1.2:1, so as to obtain a yellow precipitate; and Step (4) filtering the yellow precipitate to obtain a filter cake, washing the filter cake with deionized water and finally drying so as to obtain bismuth subgallate. The preparation method of bismuth subgallate is simple to operate and is cost-saving.
Mixed metal oxide catalysator doped with one of Mo, Nb, V, W, Zr, Ta or Bi
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, (2008/06/13)
A method for producing a catalyst by contacting a mixed metal oxide catalyst with water; and optionally, an aqueous metal oxide precursor to produce a modified mixed metal oxide, and calcining the modified mixed metal oxide.
