Results 21 to 30 of about 20,330 (287)

Bio-mining of Lanthanides from Red Mud by Green Microalgae

open access: yesMolecules, 2019
Red mud is a by-product of alumina production containing lanthanides. Growth of green microalgae on red mud and the intracellular accumulation of lanthanides was tested. The best growing species was Desmodesmus quadricauda (2.71 cell number doublings/day)
Mária Čížková   +8 more
doaj   +1 more source

Voltammetry in Determination of Trace Amounts of Lanthanides—A Review

open access: yesMolecules, 2023
This paper presents an overview of approaches proposed in the scientific literature for the voltammetric determination of rare earth elements (mainly cerium and europium individually, as well as various lanthanides simultaneously) in manifold kinds of ...
Malgorzata Grabarczyk   +2 more
doaj   +1 more source

Lanthanide contraction in linear lanthanide–oxygen clusters

open access: yesJournal of Coordination Chemistry, 2014
Five coordination polymers containing linear lanthanide–oxygen clusters 1–5 have been synthesized by a hydrothermal reaction of 3-(quinolin-8-yloxy) phthalic acid (H2L) with the respective lanthanide salt. The X-ray single crystal structural analyses revealed that these five crystalline materials belong to two isostructures with formulas [LnHL2(H2O)2]n
Fang, Xin   +3 more
openaire   +1 more source

Selective removal of some heavy metals from Lanthanide solution by graphene oxide functionalized with sodium citrate

open access: yesScientific Reports, 2022
Lanthanides are widely used in several advanced technologies, and the presence of heavy metal ions as traces reduce their efficiencies. Hence, adsorption of some heavy metals from Lanthanides aqueous solution using previously prepared graphene oxide ...
E. M. Abu Elgoud   +3 more
doaj   +1 more source

LANTANIDES (Y, La, Ce, Pr, Nd, Sm) AND ACTINIDS (Th, U) IN SOILS OF THE HIBINO-LOVOZERO PROVINCE

open access: yesБюллетень Почвенного института им. В.В. Докучаева, 2010
In the Khibinsko-Lovozero district of the Kola Peninsula, the territory is divided into three geochemically different areas. In the background area near Umbozero, both mineral and peated samples contain all rare metals below clark: lanthanides and ...
Yu. Vodianitsky   +2 more
doaj   +1 more source

The effect of lanthanides on the accumulation of rubber (1,4-Cis-polyizoprene) in Dandelion Crimean-Sagyz (Taraxacum hybernum) Under adverse climate, and its environmental consequences [PDF]

open access: yesCaspian Journal of Environmental Sciences, 2020
The stimulating effect of lanthanides on the accumulation of rubber in the roots of dandelion Taraxacum hybernum (Krym-saghyz) was demonstrated                                                  along with its environmental consequences.
Vladimir Nikolaevich Vorob’ev   +4 more
doaj   +1 more source

Hydrophilic Sulfonated Bis-1,2,4-Triazine Ligands Are Highly Effective Reagents for Separating Actinides(III) from Lanthanides(III) via Selective Formation of Aqueous Actinide Complexes [PDF]

open access: yes, 2015
We report the first examples of hydrophilic 6,6’-bis(1,2,4-triazin-3-yl)-2,2’-bipyridine (BTBP) and 2,9-bis(1,2,4-triazin-3-yl)-1,10-phenanthroline (BTPhen) ligands, and their applications as actinide(III) selective aqueous complexing agents.
Harwood, Laurence   +10 more
core   +1 more source

Lanthanide Luminescence in Visible-Light-Promoted Photochemical Reactions

open access: yesMolecules, 2020
The excitation of lanthanides with visible light to promote photochemical reactions has garnered interest in recent years. Lanthanides serve as initiators for photochemical reactions because they exhibit visible-light-promoted 4f→5d transitions that lead
Ramiro Barraza, Matthew J. Allen
doaj   +1 more source

New technology for lanthanide recovery from spent Nd-Fe-B magnets

open access: yesSouth African Journal of Chemical Engineering, 2020
A new technology, representing a complete process of recovery of rare earth elements from neodymium-iron-boron permanent magnets scrap by acid dissolution and liquid-liquid extraction, is proposed. This technology is based on basic research of individual
Vaclav Gruber, Milan Carsky
doaj   +1 more source

Study of Ce0.9Tb0.05Ln0.05O1.975 compounds as ceramic pigments [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2008
New inorganic pigments based on CeO2 were synthesized as high-temperature Environment friendly inorganic pigments. This work is focused on mixed oxides based on ceria which are doped by rare earth elements, i.e. compounds with formula Ce0.9Tb0.05Ln0.05O1.
Šulcová P., Vitásková L., Trojan M.
doaj   +1 more source

Home - About - Disclaimer - Privacy