Results 71 to 80 of about 4,305 (211)

Degradation of Methyl Blue Using Fe-Tourmaline as a Novel Photocatalyst

open access: yesMolecules, 2013
This study investigated the photocatalytic activity of tourmaline by itself. Under irradiation of a 13 W, 254 nm UV lamp, 50% of methyl blue disappeared in the presence of 130 mg·L−1 tourmaline. The reaction was inhibited by the addition of ethanol, Cl−,
Rong Ji, Jianqiu Chen, Xuesen Bian
doaj   +1 more source

Bond valence constraints on the composition of 3d-elements bearing tourmalines [PDF]

open access: bronze, 2014
Oleg S. Vereshchagin   +2 more
openalex   +1 more source

Chemical and boron isotope composition of tourmaline from the Kiaka orogenic gold deposit (Burkina Faso, West African Craton) as a proxy for ore-forming processes

open access: green, 2020
Judith Gauriau   +9 more
openalex   +2 more sources

Chemical Composition of the Tourmaline from Stratiform Tourmalinites of the Passagem de Mariana Gold Mine, Southeastern Quadrilátero Ferrífero (Minas Gerais, Brazil) [PDF]

open access: yesGeologia USP. Série Científica, 2009
The Passagem de Mariana Mine in the southeastern part of the Quadrilátero Ferrífero, Minas Gerais, Brazil, is one ofthe oldest Brazilian gold mines. Gold is associated with stratiform tourmalinites and tourmaline-bearing quartz and carbonateveins and ...
Gianna Maria Garda   +5 more
doaj  

Pyroelectricity of Tourmaline Containing Fe Mediated by Iron Speciation Under Gamma Irradiation

open access: green, 2022
Lin Zhou   +7 more
openalex   +1 more source

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