Results 51 to 60 of about 44,269 (256)

Modes of occurrence and influencing factors of lithium in Li-rich coal from the Jungar coalfield, China, insights of LA-ICP-MS

International Journal of Coal Science & Technology
Due to the limitations of widely used energy spectrum and spectral analyses for the determination of trace elements in coal, the modes of occurrence of Li still remains unclear.
Huidi Hao, Bo Jiu, Wenhui Huang, Mingzhe Sun   +3 more
doaj   +1 more source

Molecular dynamics simulations of CH4 diffusion in kaolinite: influence of water content

International Journal of Coal Science & Technology, 2019
Understanding the interaction of CH4 with kaolinite is significant for researchers in the fields of coalbed CH4 and shale gas. The diffusion behaviors of CH4 in kaolinite with water contents ranging from 0 to 5 wt% have been analyzed by molecular ...
Bin Zhang, Jianting Kang, Tianhe Kang, Guanxian Kang, Guofei Zhao   +4 more
doaj   +1 more source

Comparison of microscopic adsorption characteristics of Zn(II), Pb(II), and Cu(II) on kaolinite

Scientific Reports, 2022
In this research, kaolinite was used to investigate the comparative adsorption of copper, lead, and zinc ions through batch control experiments and first principles calculations.
Li Tian, Kai-bin Fu, Shu Chen, Jun Yao, Liang Bian   +4 more
doaj   +1 more source

Interaction Between Nitrogen Forms, Phosphorus Forms, and Mineral Phases Drives Phosphorus Limitation and Uptake by Ryegrass in a Model System

Journal of Plant Nutrition and Soil Science, EarlyView.
Nitrogen addition shifts plant nutrition from nitrogen to phosphorus (P) limitation. Nitrate‐based nitrogen enhances P acquisition more effectively than ammonium through increased phosphatase activity, independently of pH changes. Organic P forms induce stronger P limitation than inorganic P.
Issifou Amadou, Michel‐Pierre Faucon, Josep Peñuelas, Jordi Sardans, David Houben   +4 more
wiley   +1 more source

Molecular dynamic simulation study on interaction mechanism between biopolymer and kaolinite [PDF]

E3S Web of Conferences
The mining industry produces enormous amounts of waste annually. These wastes – mine tailings – predominantly consist of clay size particles with the major clay mineral being kaolinite.
Chandregowda Shreyas Aralumallige, Bhatia Shobha K., Palomino Angelica M.   +2 more
doaj   +1 more source

Estimating Soil Compaction Risk at Regional Scales Using Meteorological Data and Soil Spectroscopy

Land Degradation &Development, EarlyView.
ABSTRACT Soil compaction is a significant form of soil degradation in Europe, reducing agricultural productivity, limiting carbon sequestration and increasing greenhouse gases emissions. In response, the forthcoming European Union Soil Monitoring and Resilience Law requires spatial assessment of topsoil and subsoil compaction risk at district, that is,
Felipe Bachion de Santana, Rebecca. L. Hall, Longnan Shi, Owen Fenton, Victoria Lowe, Giulia Bondi, Lilian O'Sullivan, Karen Daly   +7 more
wiley   +1 more source

Structure of Hydrated Kaolinite Edge Surfaces: DFT Results and Further Development of the ClayFF Classical Force Field with Metal–O–H Angle Bending Terms

Journal of Physical Chemistry C, 2019
Toward the development of classical force fields for the accurate modeling of clay mineral-water systems, we have extended the use of metal–O–H (M–O–H) angle bending terms to describe surface Si–O–H bending for hydrated kaolinite edge structures ...
M. Pouvreau, J. Greathouse, R. Cygan, A. Kalinichev   +3 more
semanticscholar   +1 more source

Polypropylen Composites and Hybrid Composites Reinforced With Sugarcane Bagasse Fibers and Nanoclays: Structure–Processing–Properties Relationships

Polymer Engineering &Science, EarlyView.
Schematic overview of polypropylene biocomposites with multiscale fillers, from compounding to mechanical performance evaluation of injection‐molded and 3D‐printed specimens. ABSTRACT This study investigates the development of environmentally improved hybrid composites by incorporating sugarcane bagasse (SCB) fibers (15 wt.%) and hydrophobic nano‐clay ...
Mohamed Ait Balla, Oumaima Belcadi, Abderrahim Maazouz, Khalid Lamnawar, Fatima Ezzahra Arrakhiz   +4 more
wiley   +1 more source

Synthesis and application of alginate@CuFe2O4 polymeric spheres in 17‐β‐estradiol adsorption processes in Amazonian rivers

Polymer International, EarlyView.
Magnetic alginate beads, functionalized with copper ferrite, effectively remove 17‐β‐estradiol from Amazonian water, exhibiting optimized 238.65 μg g−1 capacity, fast 40 min kinetics, easy recovery, and successful remediation. Abstract The presence of endocrine‐disrupting compounds, such as 17‐β‐estradiol, in aquatic ecosystems poses a significant ...
Dante S Silva, Adriano R. S Silva, Yasmin S Medeiros, José R Santos Neto, Jamily L dos Santos, Ananias L dos Santos, Roberta L. S Bernardino, Giulian César S Sá, Leandro A Pocrifka, Sidnei C dos Santos, Emilly C Silva   +10 more
wiley   +1 more source

Application of Qusaiba Kaolinite Clays as Secondary Cementitious Material in Oil Well Cementing

International Journal of Concrete Structures and Materials
The oil and gas industry, constituting 90% of Saudi Arabia's exports, relies on essential operations, including oil-well cementing. This crucial process ensures zonal isolation and wellbore structural support.
Abdulmalek Ahmed, Ahmed Abdulhamid Mahmoud, Salaheldin Elkatatny, Dhafer Al Shehri, Korhan Ayranci   +4 more
doaj   +1 more source