Although the Middle Eocene sediments at the Nile Valley, Egypt have been extensively studied, the origin of glauconites in these sediments is still questionable. In this paper, the glauconites that occur in the Qarara Formation were subjected to petrographical and mineralogical studies to assess...

The Oligocene Maniyara Fort Formation in western India exhibits two distinct glauconite types with different maturation states, which are characterized by their spectral response in the visible to infrared spectrum of electromagnetic radiation. Spectral signatures of Maniyara Fort glauconites di...

The purpose of the study was to investigate glauconite weathering in regolith profile developed on Santonian marls in Zabierzów (South Poland) most likely during Paleogene. Because of the high carbonates content the studied regolith appears to constitute a unique case where glauconite underwent...

This study presents a detailed crystallo-chemical characterization of glauconites occurring at different stratigraphic intervals within the phosphorite-bearing Campanian Duwi Formation. While authigenic glauconites occur within the shallow marine, transgressive deposits of Abu Tartur Phosphate a...

The aim of the present study was to investigate the process of glauconite weathering in an alkaline soil under temperate climatic conditions. Calcaric Cambisol developed on Miocene sand in eastern Poland, and the sand containing parent glauconite, were sampled and analyzed using optical microsco...

Many Nanoparticles (NPs) were reported to significantly enhance the production of biogas from the anaerobic digestion of organic wastes. Herein, two types of NPs (Ni-Ferrite and Ni-Co-Ferrite) were synthesized using the co-precipitation method and characterized using X-ray diffraction (XRD), and...

We systematically research the structural, magnetic, electric and microwave absorption properties of Li0.25+x/3Zn0.5Fe2.25-xTi2x/3O4 ferrites prepared by sol-gel method. The analysis of X-ray diffraction patterns confirms the formation of cubic Fd-3m phase, and the lattice parameters decrease fr...

SrCo1.5Ti1.5Fe9O19 ferrite was sintered at900 °C with B2O3 and BBSZ glass as sintering additives. The impacts of additives on the densification, microstructure, dielectric and magnetic properties of the ferrite have been studied. The bulk densities of 4.0 and 4.3 g/ccwere observed in 5 wt% B2O3...

Ferrite-ferroelectric composites having general formula (1-x)Na0.5Bi0.5TiO3-(x)Ni0.25Mg0.5Zn0.25Fe2O4 were developed by conventional solid state reaction method. The structural, dielectric and magnetic properties were studied for all the prepared samples. The crystalline phases of samples were v...

Multiferroics materials have been used widely in various fields such as ceramic supercapacitors, active and multifunctional devices due to their high relative permittivity with magnetic and ferroelectric behavior even at room temperature. The composites of cobalt ferrite, barium titanate have be...

The effect of octanol in cassiterite flotation using benzohydroxamic acid (BHA) as a collector was investigated. The adsorption mechanism of octanol and BHA on the surface of cassiterite was analyzed by adsorption experiments and infrared spectra analysis. Micro-flotation results indicated that ...

The detection of the identities and concentrations of sulfur hexafluoride, SF6, decomposition products is important for evaluating the conditions of SF6-gas-insulated equipment. This study is a preliminary test of the use of cassiterite (110) for detecting SF6 and SF6 decomposition gases, includ...

Thermoluminescence (TL) and radioluminescence (RL) have been exploited to study the optical properties of a few glass tesserae of the baroque mosaics of the vault of San Pietro cathedral in Rome. Recent results gave evidence that the dosimetric properties of mosaic glass depend on the presence o...

Transition metal sulfides have been considered as the promising electroactive materials for the supercapacitors with high specific capacitances. Herein, cobalt sulfide foam (CSF) with three-dimensional (3D) porous hierarchical structure was controllably synthesized on the electrode by the facile...

Morphology and phase have significant role in the performance of catalysts. Herein, we fabricated various novel and highly hierarchical flower-like copper sulfide superstructures of CuS and Cu1.8S phase through self-assembly of nanoplates or nanosheets via solvothermal reaction by adjusting the ...

A proof-of-concept of copper sulfide mineral bioleaching assisted by microbial fuel cells (MFCs) was demonstrated in current study. Simultaneous copper extraction and electricity generation were obtained in this bioleaching process, providing a novel approach for copper sulfide mineral bioleachi...

Sulfoximines and sulfilimines have attracted considerable interest among organic chemists. The Cu(II)-catalyzed imination of sulfoxides and sulfides using various N-fluoro benzenesulfonamides was investigated in this study. The scope of the reaction was demonstrated by using several substituted ...

The reaction between the ligand di(4-pyridyl)sulfide(dps) and two salts of divalent first row transition metals (M= Co2+, and Cu2+) resulted in three new compounds with formula: [Co(dps)4(H2O)2](ClO4)2⋅H2O (1), [Cu(dps)2(dmso)2]n(ClO4)2n (2) and [{Cu(dps)2(dmso)2}{Cu(dps)2(dmso)(H2O)}]n(ClO4)4n⋅...

A novel poly vinyl alcohol supported cupric oxide nanocomposite (CuO/PVA) modified glassy carbon electrode (GCE) was developed for determination of mercury (II) ions by electrochemical methods. The CuO/PVA nanocomposite was synthesized by sonochemical method and characterized by spectral, analyt...

Over the past few decades, nanofluids have emerged as prospective heat transfer fluids. Studies of nanofluids suggest that based on the dispersoids chosen, thermal conductivity and other measures of heat transfer properties could be substantially improved when compared to the conventional fluids...