Results 81 to 90 of about 39,824 (274)
Goethite (α‐FeOOH) photocatalytic activity at natural concentrations by the addition of H2O2 at neutral pH and the simultaneous presence of fluoride and bicarbonate [PDF]
John J. Alvear‐Daza +9 more
openalex +1 more source
Microalgae‐Derived Metal Nanostructures: Biosynthesis, Characterization, and Applications
This review highlights the eco‐friendly biosynthesis of silver, gold, iron, and copper nanoparticles using microalgae. It details mechanisms, optimization parameters, and characterization methods, while emphasizing potent biomedical applications including antioxidant, antimicrobial, and anticancer effects.
Jaya Lakkakula +4 more
wiley +1 more source
Phyllosilicate-based adsorbents decorated with iron oxyhydroxides: Application for lead, chromates and selenites removal [PDF]
Expanded vermiculite (EVer) was acid activated and silanized in order to obtain suitable substrate’s surface for decoration with iron oxyhydroxides (IO).
Bugarčić Mladen +6 more
doaj +1 more source
Goethite is a naturally anisotropic, antiferromagnetic iron oxide. Following its atomic structure, crystals grow into a fine needle shape that has interesting properties in a magnetic field.
Stephan Hinrichs +7 more
doaj +1 more source
Abstract Aluminum (Al) is one of the most abundant elements in soils. As poorly crystalline Al hydroxides are reactive toward soil organic matter (SOM), they are thought to be involved in SOM stabilization. This is also inferred from correlations between soil organic carbon contents and those of Al extracted by acid oxalate in darkness (AOD), although ...
Thilo Rennert +2 more
wiley +1 more source
The removal of the As(V) and Iprodione fungicide onto EGS@APTES-GT, obtained by amino-modified expanded glass spheres (EGS) modified with goethite, was studied in this work. Material characterization was performed using SEM/EDS, XRD, and FTIR techniques.
Ali Abdussalam Almazoug +7 more
doaj +1 more source
Ochre is a natural pigment of yellow or red color, mainly consisting of iron minerals. Along with determining the origin of mineral dyes, one of the main problems of studying natural pigments in archaeology is identifying the origin of the so-called “red”
Pavel I. Kalinin +3 more
doaj +1 more source
The Role of Fe(II) Minerals in Carbon Stabilization in Coastal and Estuarine Anoxic Environments
Abstract Fe(III) (oxyhydr)oxides are well‐known for their role in organic carbon (OC) stabilization in terrestrial soils. Coastal and estuarine soils typically act as iron sinks and receive a high input of OC. However, tidal submersion induces anoxic and reducing conditions that favor the microbial reductive dissolution of Fe(III) (oxyhydr)oxides ...
Jan Jagode +2 more
wiley +1 more source
Soil CO2 emission (FCO2) is one of the main sources of carbon release into the atmosphere. Moreover, FCO2 is related to soil attributes governing the transfer of gases from soil to the atmosphere.
Angélica Santos Rabelo de Souza Bahia +6 more
doaj +1 more source
Read the free Plain Language Summary for this article on the Journal blog. Abstract Mixed dipterocarp lowland tropical rain forests on Oxisols and Ultisols and heath forests on Spodosols are considered distinct vegetation types in Borneo. Here we present the endmember hypothesis of ecosystem diversification, which describes a continuum of forest ...
Kanehiro Kitayama +4 more
wiley +1 more source

