Showing papers in "Applied Clay Science in 2020"

TL;DR: In this article, the main characteristics of clays and clay minerals in nitrate uptake are evaluated and the known shortcomings of their application discussed, leading to suggestions for further research, and a review aims to assemble the available literature research on the application of Clays and Clay minerals as well as the mechanisms that lead to successful removal of nitrate from water.

TL;DR: In this article, the in-situ growth of zeolite imidazolate frameworks (ZIF-67) on layered double hydroxides (LDH) to form porous composites to develop materials for removal of methylene blue (MB) and methyl orange (MO).

TL;DR: In this paper, the design and preparation of Mater-Bi/halloysite nanocomposite materials that could be employed as bioplastics alternative to the petroleum derived products were investigated.

TL;DR: In this paper, a review of the catalytic utility of the halloysite nanocomposites/hybrids is presented, which is based on the types of the components that were hybridized with Halloysite.

TL;DR: In this article, industrial wastes such as Granulated Blast Furnace Slag (GBFS) and Basic Oxygen Furnace SLag (BOFS) activated with calcium oxide (CaO) and medium reactive magnesia (MgO) are used for chemical stabilization of a soft clay.

TL;DR: In this article, the authors discuss the thermoplastics-based nanocomposites reinforced with the hybrid of montmorillonite and carbon nanotubes, for high-performance applications.

TL;DR: In this paper, a novel tailor-made TiO2 nanoparticles-bentonite (TNBT) nanocomposite-enhanced drilling mud was tested, which showed excellent performance; lubricity was enhanced, thin and well-intact mud cakes were created, coating was provided on shale and bentonite plugs, and clay and shale swelling were mitigated.

TL;DR: In this article, the phase composition, thermal stability and microstructure of metakaolin-based geopolymer blended with rice husk ash with replacement levels of 5-20% by weight of MK was investigated.

TL;DR: In this article, a review on the use of biopolymer-clays nanocomposites for environmental remediation is presented, where physicochemical and structural properties of clays and biopolymers as well as main characterization and preparation techniques are discussed.

TL;DR: In this article, the authors investigated the effects of precalcination temperatures ranging from 450°C to 1000°C on the microstructures and mechanical properties of halloysite-based geopolymer.

TL;DR: In this paper, the geochemistry, pore structure and fractal characteristics of the Upper Cretaceous Nenjiang shale in the Songliao Basin of NE China were investigated, combining geochemistry experiments, physical property analysis, FE-SEM and nano-CT image observation, CO2/N2 gas adsorption, mercury intrusion porosimetry, and methane methane sorption analysis.

TL;DR: A versatile catalyst based on halloysite and zinc oxide (HNT@ZnO) was prepared, for the first time, starting from ZnO commercial bulk form as Zn precursor source, in a one-pot procedure.

TL;DR: The in-depth analysis presented in this paper shows the unsuitability of the linearized function to evaluate the goodness of the PSO model for adsorption data.

TL;DR: The fabricated chitosan/PEO/HAL membranes exhibited appropriate tensile strength properties to support the growth of osteoblast cells and showed a hydrophilic nature appropriate for bone tissue regeneration.

TL;DR: In this paper, a comparison between the mechanical and microstructural properties of poly(sialate-siloxo) networks based on metakaolins from halloysite and kaolin was made.

TL;DR: In this article, a halloysite-CeOx (x = 1.5-2.0) nanocomposites were prepared using a redox-precipitation method, and the As(III) removal performance of the obtained materials was evaluated.

TL;DR: In this paper, a low-cost adsorbent consisting of lanthanum (La)-doped bentonite and chitosan, with a simple, facile and scalable method combining direct calcination and subsequent blending, was presented.

TL;DR: In this article, the B-MgAl-LDH was employed for enhanced aqueous uptake of methylene blue (MB) and showed good adsorptive performances of MB at varied pH values (4-10).

TL;DR: In this paper, the effects of pH on the structures, compositions, morphologies, Zeta potential, and gel properties of montmorillonite, palygorskite and their composite clays were investigated in the study.

TL;DR: In this paper, the isotherm adsorption curves of CH4 and CO2 on montmorillonite at 288,K, 308,K and 328,K were obtained using gravimetric apparatus.

TL;DR: In this article, the results demonstrated that Zr was successfully introduced to the surface and interlayer of raw CaM in the presence of the [Si O]…[HO Zr ] hydrogen bond and that it increased the specific surface area.

TL;DR: The surface properties and surface contacts of kaolinite (Kaol) particles were found to involve in the formation of aggregates in natural sediments, which shows that they are crucial for nucleation, distribution, and crystallinity of CH4 hydrate as mentioned in this paper.

TL;DR: In this article, the effect of simultaneous incorporation of two silicate-based nanofillers, including montmorillonite (Mt) and halloysite nanotube (Hal), on mechanical and shape memory performance of thermoplastic polyurethane (TPU) nanocomposites was studied.

TL;DR: In this article, batch sorption experiments were conducted to investigate Sb removal from water by a hydroxyl-intercalated, mechanochemically synthesized Mg-Fe-LDH.

TL;DR: In this paper, the authors used the term "hydrotalcite" to describe layered double hydroxides (LDH) composed of Mg, Al, and CO3 (Mg-Al LDH).

TL;DR: A simple and rapid synthesis of hexagonal boron nitride/halloysite-nanotube (h-BN/HNTs) nanocomposite and its potential application towards highly selective electrochemical determination of furazolidone (FZ) was reported in this paper.

TL;DR: In this paper, electrospun fibrous membranes based on polycaprolactone (PCL)/polyethylene oxide (PEO) blended with pure, 3-Aminopropyltriethoxysilane (APTES) or 3-Glycidoxypropyltrimethoxylynne (GPTMS) modified halloysite nanotubes (HNT) were prepared by electrospinning for curcumin (Cur) delivery system.

TL;DR: This formulation of hydrophobic halloysite nanotubes coated with octadecyltrimethoxysilane did not have an apoptosis-inducing effect on the cells, did not increase the activity of NO-synthase and can be employed for intracellular delivery of drugs, proteins and DNA without any toxic side effects.

TL;DR: In this article, the effect of multivalent-ion specificity on the kaolinite surface was analyzed using the measured zeta potential of a sample treated with di- and trivalent chloride salts (up to 100mM).

TL;DR: In this paper, four samples of meta-halloysite from widely available Cameroon halloysite clay calcined at 600, 650, 700 and 750°C, respectively, and the resultant geopolymer binders were systematically characterized.