Results 101 to 110 of about 17,623 (218)

Variabilidade espacial de atributos mineralógicos de um latossolo sob diferentes formas do relevo: I - mineralogia da fração argila Spatial variability of mineralogical attributes of an oxisol under different relief forms: I - clay fraction mineralogy

Revista Brasileira de Ciência do Solo, 2008
A distribuição dos minerais da fração argila depende de condições pedoambientais específicas. O estudo das relações entre atributos desses minerais e locais específicos de sua ocorrência na paisagem torna-se importante para o entendimento das relações ...
Livia Arantes Camargo, José Marques Júnior, Gener Tadeu Pereira, Renata Alves Horvat   +3 more
doaj   +1 more source

Towards Building a Unified Adsorption Model for Goethite Based on Variable Crystal Face Contributions: III Carbonate Adsorption

Colloids and Interfaces
Goethite, a ubiquitous Fe(III) oxyhydroxide mineral, typically occurs in very small particle sizes whose interfacial properties critically influence the fate and transport of ionic species in natural systems.
Mario Villalobos, América Xitlalli Cruz-Valladares   +1 more
doaj   +1 more source

DATA.GCMS data: Goethite pyrolysed at 650oC (blank)

, 2019
DATA.GCMS data: Goethite pyrolysed at 650oC ...
Samuel Royle (4095433)
core   +1 more source

Mechanism of groundwater arsenic removal by goethite-coated mineral sand

, 2023
Skye sand (Vic, Australia) has been considered for arsenic removal from groundwater. Analysis showed that the silica sand is coated with poorly crystalline goethite, hematite and clay minerals.
S A Khan (13347195), J D Cashion (13616215), A F Patti (13493338), Will Gates (13070694), S Adeloju (9863714)   +4 more
core  

Ultimate Eradication of Acid Orange 7 from Contaminated Liquid via Synthesised Mesoporous Goethite

Journal of the Turkish Chemical Society Section B: Chemical Engineering, 2021
This paper carried out the study on the adsorption of Acid Orange 7 (ACO7) from aqueous solutions by mesoporous goethite (MPG). The adsorbent was characterized by XRD, FE-SEM, BJH desorption and BET.
Davoud BALARAK, Fatemeh GANJİ, Periakaruppan RAJİV, Chinenye IGWEGBE, Joshua IGHALO   +4 more
doaj  

Visible light to switch on desorption from goethite

, 2019
Switching adsorption–desorption by visible light could provide the possibility for a wide range of applications that require controlled release-on-demand.
Visnapuu, Meeri, utka, A., Käämbre, T., Visnapuu, M., Käämbre, Tanel, Gross, Karlis Agris, Trefalt, G., Šutka, Andris, Šutka, Anna, Gross, K.A., Järvekülg, Martin, Trefalt, Gregor, Kook, Mati, Kook, M., Järvekülg, M.   +14 more
core   +1 more source

Geochemical Properties of Structurally Incorporated Pentavalent Uranium in Goethite

Yuanzineng kexue jishu
Pentavalent uranium ((U(Ⅴ)) has historically been overlooked in environmental geochemistry due to its inherent instability and susceptibility to oxidation and disproportionation under ambient conditions.
XIA Qingyin1, 2, NIU Yuqing1, 2, YUAN Yuan1, 2, YU Baomin1, 2, LIU Kang1, 2, CHEN Meifang1, 2, JIA Xiumin1, 2, SU Xuebin2, 3
doaj   +1 more source

Arsenate adsorption on waste eggshell modified by goethite, alpha-MnO2 and goethite/alpha-MnO2

, 2014
An efficient adsorbents for arsenate removal was developed by modification of calcined eggshell with goethite (calcined eggshell/goethite; sorbent 1), alpha-MnO2 (calcined eggshell/alpha-MnO2; sorbent 2) and hybride system goethite/alpha-MnO2 (calcined ...
Đokić, Veljko, Marinković, Aleksandar D., Markovic, Dana D., Markovski, Jasmina, Onjia, Antonije, Marinković, Aleksandar, Đokić, Veljko R., Mitrić, Miodrag, Onjia, Antonije E., Markovski, Jasmina S., Ristić, Mirjana   +10 more
core   +1 more source

Spectroscopic Evidence for the α-FeOOH-to-ε-FeOOH Phase Transition: Insights from High-Pressure and High-Temperature Raman Spectroscopy

Crystals
We conducted in situ Raman spectroscopy measurements on goethite (α-FeOOH) under simultaneous high-pressure and high-temperature conditions using an externally heated diamond anvil cell (EHDAC). Our study investigates spectral changes associated with the
Shanece S. Esdaille, Vadym Drozd, Andriy Durygin, Wenhao Li, Jiuhua Chen   +4 more
doaj   +1 more source