Results 41 to 50 of about 3,194 (203)

Influence of luminous intensity on textile effluent photodegradation = Influência da intensidade luminosa na fotodegradação de efluente têxtil

Acta Scientiarum: Technology, 2005
Degradation tests were carried out to determine the luminous intensityinfluence on textile industry effluent photodegradation. TiO2, Nb2O5, Nb2O5-TiO2 and Nb2O5/TiO2 were used as photocatalysts.
Veronice Slusarski Santana, André Luís Alberton, Nádia Regina Camargo Fernandes Machado   +2 more
doaj  

Mechanochemical synthesis of NaNbO3, KNbO3 and K0.5Na0.5NbO3 [PDF]

Science of Sintering, 2005
Mechanochemical synthesis of the K0.5Na0.5NbO3 solid solution (KNN) is studied. In order to explore the mechanochemical interactions between the constituents in the Na2CO3 - K2CO3 - Nb2O5 system, NaNbO3 and KNbO3 as the boundary compositions of the KNN ...
Rojac T., Kosec M., Malič B., Holc J.
doaj   +1 more source

A 2D/1D g-C3N4/Nb2O5 heterostructure in HPEI template with the potential for water treatment

Materials Letters: X, 2021
A heterostructure of graphitic carbon nitride/niobium oxide (g-C3N4/Nb2O5) was synthesised by hydrothermal treatment. Morphological and structural properties show an orthorhombic phase of Nb2O5 with evenly dispersed crystalline nanoparticles having an ...
V.P. Letswalo, L.N. Dlamini, S.P. Malinga   +2 more
doaj   +1 more source

Coarsening‐Resistant Ag Sinter Composites: Mechanistic Insights From Different Ag–Additive Systems

Advanced Electronic Materials, EarlyView.
An Ag–WC sintered composite exhibiting superior resistance to thermal coarsening. Different particle‐reinforced Ag sinter composites showed markedly different microstructural responses to thermal aging. The comparison revealed that robust Ag–additive interfaces maintain grain‐boundary pinning, whereas insufficient interfacial stability results in the ...
Yang Liu, Chuantong Chen, Ran Liu, Akitsu Shigetou, Katsuaki Suganuma   +4 more
wiley   +1 more source

Avaliação da atividade fotocatalítica de Nb2O5 = Evaluation of the photocatalytic activity of Nb2O5

Acta Scientiarum: Technology, 2010
Como a fotocatálise heterogênea é um dos métodos de tratamento de efluentes mais promissores, o estudo da atividade fotocatalítica de novos catalisadores é de primordial interesse.
Veronice Slusarski Santana, Eduardo Ossamu Mitushasi, Nádia Regina Camargo Fernandes-Machado   +2 more
doaj  

Evaluation of Nb2O5 and Ag/Nb2O5 in the photocatalytic degradation of dyes from textile industries

Brazilian Journal of Chemical Engineering, 2002
The textile industries are distinguished by the use of dyes that are applied to textiles. Dyes are pollutant materials that are difficult to decompose by microbiological treatment. An alternative way to prevent contamination of the environment by dyes is the oxidation of these materials through photocatalysis, a process by which illumination of an ...
Silva, M.K., Marques, R.G., Machado, N.R.C.F., Santos, O.A.A.   +3 more
openaire   +3 more sources

Discovery of Novel Materials with Giant Dielectric Constants via First‐Principles Phonon Calculations and Machine Learning

Advanced Intelligent Discovery, EarlyView.
We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake, Kazuki Shitara, Rie Yokoi, Takeharu Kato, Isao Tanaka, Ayako Yamamoto, Kimitoshi Murase, Yosuke Hamasaiki, Yoshitaka Ehara, Mitsuru Itoh   +9 more
wiley   +1 more source

A Highly Sensitive Enzyme-Amplified Immunosensor Based on a Nanoporous Niobium Oxide (Nb2O5) Electrode

Sensors, 2010
We report on the development of an enzyme-amplified sandwich-type immunosensor based on a thin gold film sputtered on an anodic nanoporous niobium oxide (Au@Nb2O5) electrode.
Chang-Soo Lee, Dohyoung Kwon, Jeng Eun Yoo, Byung Gun Lee, Jinsub Choi, Bong Hyun Chung   +5 more
doaj   +1 more source

Prediction‐Guided Two‐Step Solid‐State Exploration of Unknown Pseudo‐Ternary Oxides

Advanced Intelligent Discovery, EarlyView.
Prediction‐guided selection combined with two‐step solid‐state exploration enables efficient search of unknown pseudo‐ternary oxides. Broad robotic slurry screening followed by manual single‐phase isolation leads to the discovery of a new oxide, Ba5SnV6O22, showing how data‐guided experiments connect unexplored composition regions to new materials ...
Hiroyuki Hayashi
wiley   +1 more source

Influence of niobium pentoxide addition on the properties of glass ionomer cements

Acta Biomaterialia Odontologica Scandinavica, 2016
Objective: To determine the influence of niobium pentoxide (Nb2O5) addition on the physical and chemical properties of glass ionomer cements (GICs). Materials and methods: Five, 10 or 20 wt.% of Nb2O5 were incorporated into commercial GICs (Maxxion R ...
Isadora Martini Garcia, Vicente Castelo Branco Leitune, Gabriela De Souza Balbinot, Susana Maria Werner Samuel, Fabrício Mezzomo Collares   +4 more
doaj   +1 more source