Journal ArticleDOI
Effects of crystal and electronic structures of ANb2O6 (A=Ca, Sr, Ba) metaniobate compounds on their photocatalytic H2 evolution from pure water
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TLDR
In this paper, the authors used X-ray diffraction, field-emission electron microscopy (FE-SEM), and UV-vis diffuse reflectance spectroscopy, and fluorescence spectra to investigate the electronic band structures and photocatalytic activities of alkali-earth metaniobate compounds.About:
This article is published in International Journal of Hydrogen Energy.The article was published on 2010-12-01. It has received 69 citations till now.read more
Citations
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Niobium oxides and niobates physical properties: Review and prospects
TL;DR: In this paper, a short review on different types of niobates, namely columbite and rare earth, and the relation of the properties of these materials with niobium oxides is presented.
Journal ArticleDOI
Red light emitting BaNb2O6:Eu3+ phosphor for solid state lighting applications
Amit K. Vishwakarma,Kaushal Jha,M. Jayasimhadri,A.S. Rao,Kiwan Jang,B. Sivaiah,B. Sivaiah,D. Haranath +7 more
TL;DR: In this article, Eu 3+ doped barium niobate (Eu 3 + :BaNb 2 O 6 ) phosphors were successfully synthesized by conventional solid state reaction method.
Journal ArticleDOI
Perovskite oxide-based photocatalysts for solar-driven hydrogen production: Progress and perspectives
Van-Huy Nguyen,Ha Huu Do,Tuan Van Nguyen,Pardeep Singh,Pankaj Raizada,Ajit Sharma,Siva Sankar Sana,Andrews Nirmala Grace,Mohammadreza Shokouhimehr,Sang Hyun Ahn,Changlei Xia,Soo Young Kim,Quyet Van Le +12 more
TL;DR: In this paper, the most recent advances in the development of fabrication methods, surface modification, and structural engineering to achieve high catalytic activity and practical applicability for hydrogen evolution reaction (HER) are discussed.
Journal ArticleDOI
Self-doped Ti3+@TiO2 visible light photocatalyst: Influence of synthetic parameters on the H2 production activity
Fan Zuo,Le Wang,Pingyun Feng +2 more
TL;DR: In this paper, the authors systematically studied various experimental parameters, such as the amount of reducing agent imidazole, types of imidaze and Ti sources, and determined effects of these parameters on the combustion process and final materials.
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Pr3+ doped BaNb2O6 reddish orange emitting phosphor for solid state lighting and optical thermometry applications
TL;DR: In this article, BaNb2O6: Pr3+ phosphor was synthesized by conventional solid-state reaction method and its structural, morphological, optical properties and temperature dependent photoluminescence properties were investigated.
References
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Journal ArticleDOI
Size dependence of optical properties in solution-grown Pb1?xFexS nanoparticle films
TL;DR: The optical band gap of Pb1−xFexS solution-grown nanoparticle films was varied from 2.65 to 2.22 eV with an increase in iron concentration 0.25 ≤ x ≤ 0.75 as discussed by the authors.
Journal ArticleDOI
Luminescence and energy transfer in the columbite structure
G. Blasse,M.G.J. van Leur +1 more
TL;DR: In this article, the luminescence properties of undoped and Eu/sup 3 +/- and Dy/Sup 3 +/doped CdNb/sub 2/O/sub 6/ and CaNb+O/Sub 6/ are reported and discussed in connection with the luminecence of niobates and tungstates with wolframite and columbite structure.
Journal ArticleDOI
Possibilities to Design a Cheap Red Lamp Phosphor. A Study of CaNb2O6 : Eu3+
TL;DR: Several possibilities to design a cheap red lamp phosphor are reviewed in this paper, where it appears to be possible to increase the amount of energy transfer from the niobate group in CaNb2O6 to Eu3+ on calcium sites by suitable substitutions.
Journal ArticleDOI
Preparation, Characterization, and Photocatalytic Properties of CaNb2O6 Nanoparticles
TL;DR: In this article, CaNb2O6 nanoparticles with a size range of 30-50 nm were synthesized by heat treatment at 600°C after a solvothermal process and their optical and photocatalytic properties were investigated.
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