Results 71 to 80 of about 44,269 (256)

Study on adsorption of kaolinite and gold thiosulfate

Scientific Reports
The adsorption behavior of gold thiosulfate ions on the surface of kaolinite was studied using a combination of experimental research and quantum chemical calculations.
Zhonghang Chen, Pengcheng Li, Qianqian Wang, Shujuan Dai   +3 more
doaj   +1 more source

Kaolinite and Cd2+ Transport and Interaction in Sand Media: Batch and Column Experiments

Terrestrial, Atmospheric and Oceanic Sciences, 2016
Batch sorption and column transport experiments were used to investigate kaolinite colloids and Cd(II) ions (Cd2+) co-transport in water-saturated sand media.
Rakkreat Wikiniyadhanee, Srilert Chotpantarat, Say Kee Ong   +2 more
doaj   +1 more source

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

Journal of Metamorphic Geology, EarlyView.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa, Martin Racek, Petr Jeřábek, Benjamin Paddon   +3 more
wiley   +1 more source

Encapsulated Urea-Kaolinite Nanocomposite for Controlled Release Fertilizer Formulations

Journal of Chemistry, 2015
Urea controlled release fertilizer (CRF) was prepared via kaolinite intercalation followed by gum arabic encapsulation in an attempt to reduce its severe losses associated with dissolution, hydrolysis, and diffusion.
Siafu Ibahati Sempeho, Hee Taik Kim, Egid Mubofu, Alexander Pogrebnoi, Godlisten Shao, Askwar Hilonga   +5 more
doaj   +1 more source

Microbially generated ferruginous crusts: A potential biosignature of continental input in coastal settings

Sedimentology, EarlyView.
ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder, Renata Guimarães Netto, Alisson Klayton Martins   +2 more
wiley   +1 more source

Climate conditions on the South‐Iberian Palaeomargin during the latest Pliensbachian to early Toarcian: A mineralogical and geochemical study from hemipelagic deposits

Sedimentology, EarlyView.
ABSTRACT The integrated analysis of lithofacies, mineralogy and geochemistry of the hemipelagic marine succession exposed in La Cerradura section (South‐Iberian Palaeomargin) provides new information to characterise the palaeoenvironmental conditions during the latest Pliensbachian to early Toarcian, including the Jenkyns Event.
Chaima Ayadi, Isabel Abad, Elisa Laita, Ali Mokhtar Samet, Matías Reolid   +4 more
wiley   +1 more source

Design and Evaluation of a Zingiber officinale–Kaolinite–Maltodextrin Delivery System: Antioxidant, Antimicrobial, and Cytotoxic Activity Assessment

Pharmaceutics
Background/Objectives: Zingiber officinale Roscoe (Zingiberaceae) is widely recognized for its diverse biological activities; however, the stability and bioavailability of its bioactive compounds remain significant challenges.
Adina-Elena Segneanu, Ionela Amalia Bradu, Gabriela Vlase, Titus Vlase, Cornelia Bejenaru, Ludovic Everard Bejenaru, George Dan Mogoşanu, Maria Viorica Ciocîlteu, Dumitru-Daniel Herea, Eugen Radu Boia   +9 more
doaj   +1 more source

Mid‐infrared spectroscopy applied to a multi‐level cave system (Montmaurin, SW France): An innovative method for assessing sediment provenance

Sedimentology, EarlyView.
ABSTRACT Deciphering sediment provenance is essential to understand depositional patterns and dynamics. This question is particularly important in archaeological contexts to constrain the sedimentological history of unearthed material—an information critically needed, for example, to estimate the age of the deposits—or to apprehend sediment movement ...
Fuchs Coraline, Rambeau Claire, Ertlen Damien, Rixhon Gilles, Perrenoud Christian, Ponche Jean‐Luc, Trautmann Martine, Benarioumlil Sylvain, Vialet Amélie   +8 more
wiley   +1 more source

Equilibrium and Kinetic Studies of the Adsorption of Zn(II) Ions onto Natural and Activated Kaolinites

Adsorption Science & Technology, 2009
The removal of Zn(II) ions from aqueous solution was studied using natural, thermally-activated and acid-activated kaolinite samples at different temperatures.
Ali Riza Kul, Necla Caliskan
doaj   +1 more source

Source‐to‐sink sediment transport reversals during glacial sea‐level lowstands sustain soil formation on pericoastal carbonate terrains

Sedimentology, EarlyView.
ABSTRACT Understanding the processes that drive soil formation is crucial for developing sustainable land‐use strategies, as changing land‐use practices and climate change exacerbate soil erosion. The formation of substantial arable soils on carbonate bedrock requires substantial dust accretion as the underlying bedrock lacks siliciclastic material. In
Daniel Palchan, Yael Jacobi Glass, Olga Berlin, Yoav Ben Dor   +3 more
wiley   +1 more source