Results 31 to 40 of about 461,863 (213)

Excellent Performance of Fe78Si9B13 Metallic Glass for Activating Peroxymonosulfate in Degradation of Naphthol Green B

open access: yesMetals, 2017
The functional application of metallic glasses in the catalytic field has widely attracted research attention due to its unique atomic structure compared to crystalline materials.
Xue-Fen Li   +7 more
doaj   +1 more source

Reusable Surface-Enhanced Raman Spectroscopy Substrates Made of Silicon Nanowire Array Coated with Silver Nanoparticles Fabricated by Metal-Assisted Chemical Etching and Photonic Reduction

open access: yesNanomaterials, 2019
Surface-enhanced Raman spectroscopy (SERS) has advanced over the last four decades and has become an attractive tool for highly sensitive analysis in fields such as medicine and environmental monitoring.
Shi Bai   +4 more
doaj   +1 more source

Research on learning objects quality and reusability

open access: yesLietuvos Matematikos Rinkinys, 2010
The paper is aimed to analyse the learning objects quality evaluation model taking into account learning objects reusability principles. Multiple criteria analysis methods and quality evaluation criteria identification principles are used to create the ...
Elvyra Ignaško, Eugenijus Kurilovas
doaj   +1 more source

Cross-Linked Ionic Liquid Polymer for the Effective Removal of Ionic Dyes from Aqueous Systems: Investigation of Kinetics and Adsorption Isotherms

open access: yesMolecules, 2022
In the current study, we have synthesized an imidazolium based cross-linked polymer, namely, 1-vinyl-3-ethylimidazolium bis(trifluoromethylsulfonyl)imide (poly[veim][Tf2N]-TRIM) using trimethylolpropane trimethacrylate as cross linker, and demonstrated ...
A. Vijaya Bhaskar Reddy   +4 more
doaj   +1 more source

Sustainable Removal of BTEX Gas Using Regenerated Metal Containing SiO2

open access: yesNanomaterials, 2022
In the last decades, the removal of benzene, toluene, ethylbenzene, and xylene (BTEX) has been considered a major environmental crisis. In this study, two novel nanocomposite materials (Fe2O3/SiO2 and Fe2O3-Mn2O3/SiO2) that have regeneration ability by ...
Soyoung Beak   +5 more
doaj   +1 more source

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

open access: yesWater Science and Technology, 2023
Although spinel ferrite (MFe2O4, M = Zn, Ni, Mn, etc.) has been reported as a promising catalyst, its low photocatalytic activity under visible light greatly restricts its practical application.
Qiong Wu, Youtao Song
doaj   +1 more source

Magnetic and Hydrophobic Composite Polyurethane Sponge for Oil–Water Separation

open access: yesApplied Sciences, 2020
Crude oil spills from offshore oil fields will cause serious pollution to the marine ecological environment. Many 3D porous materials have been used for oil−water separation, but they cannot be widely used due to complex preparation processes and ...
Peng Jiang   +4 more
doaj   +1 more source

Commentary by Symeon Retalis on Littlejohn, A. (2003) Reusing Online Resources, Chapter 3: Keeping the Learning in Learning Objects, by Dan Rehak and Robin Mason

open access: yesJournal of Interactive Media in Education, 2004
: Recognising the fact that learning objects are still a new concept, D. Rehak and R. Mason have tackled the significant issue of how to make learning objects work in practice in a very interesting and thorough manner.
Symeon Retalis
doaj   +1 more source

FAIR assessment of nanosafety data reusability with community standards

open access: yesScientific Data
Nanomaterials hold great promise for improving our society, and it is crucial to understand their effects on biological systems in order to enhance their properties and ensure their safety.
Ammar Ammar, C. Evelo, E. Willighagen
semanticscholar   +1 more source

A Reusable Metasurface Template [PDF]

open access: yesNano Letters, 2020
Metasurfaces have revolutionized the design concepts for opticalcomponents, fostering an excitingfield offlat optics. Thanks to theflat and ultrathinnature, metasurfaces possess unique advantages over conventional optical components,such as lightweight, high compatibility, among others. To comply with potential appli-cations, further research endeavors
Jianxiong Li   +3 more
openaire   +4 more sources

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