Showing papers in "Polyhedron in 2020"

TL;DR: In this article, the NiO-NPs were examined with FT-IR, UV-Vis, XRD, FESEM/EDX/PSA, and TGA analyses.

TL;DR: In this paper, the constructed MOF-based composites and their performance in electrochemical and luminescent-based detection performances are considered. But the authors do not consider the performance of the constructed composites with modification of MOF.

TL;DR: In this article, magnetic multi-walled carbon nanotubes were functionalized with polyamidoamine (PAMAM) dendrimers and modified with butylsulfonate to afford MMWCNTs-D-(CH2)4-SO3H.

TL;DR: In this paper, praseodymium-doped cadmium tungstate (CdWO4) nanoparticles were synthesized, characterized and used as catalysts in a sonocatalytic process to degrade the toxic synthetic azo dye Remazol Black B (RBB).

TL;DR: In this article, a new copper catalyst was supported on its surface (Cu-ABA@biochar) as reusable and environmental biocatalyst, which has been characterized by SEM, EDS, WDX, XRD, TGA, N2 adsorption-desorption isotherms, FT-IR and AAS techniques.

TL;DR: In this paper, three coordination polymers of Zn(II) and Co(II), namely, {[Zn(beb)(dmglut)]}n (1), {Co2(bb)2 (hipt)2(H2O)1.5(MeOH)}]n (2) and {Zn2(Beb)-2(fum)2]}n (3) have been synthesized from flexible beb ligand and three different dicarboxylates.

TL;DR: In this paper, the adsorption of hydrolyzed polyacrylamide modified diatomite waste (HPAM-DW) for methylene blue (MB) and reactive yellow (RY) were severally studied and compared.

TL;DR: In this article, the DNA binding activity of an ONS donor ligand and its three complexes with CT-DNA was investigated. And the ligand showed a very good intercalative mode of DNA interaction with Kb values of 1.56(± 0.03)× 105 for 1 and 1.02(±0.09)×-105 for 3.

TL;DR: The results of chemical characterization confirm that the Strawberry fruit can be consumed to produce copper nanoparticles with a remarkable amount of remedial effects without any cytotoxicity against HUVECs.

TL;DR: In this paper, the adsorption process of the cationic dye Malachite Green (MG) and the anionic dye Methyl Orange (MO) onto an MOF, namely MIL-53(Al), was studied using several experimental parameters.

TL;DR: In this article, five new copper(II) chelates were synthesized and characterized by different physicochemical techniques like CHNS analysis, molar conductivity and magnetic studies, IR, UV/Vis and EPR spectral studies.

TL;DR: In this paper, a mixed ligand Cu(II) complex [Cu2(C8H4O2SF3) 2(C9H6NO)2] has been synthesized using a metal salt and the above ligands in a 1:1:1-M ratio and characterized by FT-IR, UV-visible, SEM and EDAX techniques.

TL;DR: A cobalt ferrite/graphene magnetic nanocomposite (CoFe2O4/GMNC) was synthesized via the hydrothermal method using inorganic salts and graphene sheets.

TL;DR: A 3D Eu-based coordination polymer, ([Eu(L)(H 2O)3]Cl·H2O)n (1) (H2L= (4-(pyridyl-Noxide)methylphosphonic acid), was successfully self-assembled via diffusion method at room temperature and characterized by single-crystal X-ray diffraction, elemental analyses, powder Xray diffract, thermogravimetric analyses and FT-IR as mentioned in this paper.

TL;DR: In this paper, the ternary nanocomposite CuS-g-C3N4/Ag as a visible-light-responsive photocatalyst with optimum Ag and CuS contents was synthesized through a reliable and effective method to modify the photocatalytic performance of bare g-C 3N4.

TL;DR: In this paper, 17 vanadium complexes with hydrazido-hydrazone Schiff bases, formed from 5-bromosalicylaldehyde and different hydrazides, are described and characterized by elemental analysis, IR, UV-Vis (in solution and as reflectance spectra) and EPR spectroscopy, cyclic voltammetry and thermogravimetric measurements.

TL;DR: In this paper, the authors provide new platforms for anion recognition using metal-organic frameworks (MOFs), a class of porous materials that can act as a sensor for anions in the aqueous media.

TL;DR: In this article, a selective and sensitive chemical optical sensor was prepared based on citrate capped gold nanoparticles growth in polyvinyl-alcohol holding matrix and congo red (CR)-functionalized (PVA-Au-Citrate-NPs-CR), while consequently applied for the determination of trace amount of Cr(III) ion in aqueous media.

TL;DR: In this paper, a sonochemical method was proposed for the synthesis of spherical shape ErVO4/MnWO4 heterostructures with optima morphology by changing power and time ultrasound irradiation without any capping agent.

TL;DR: In this paper, the performance of various bimetallic cobalt-nickel catalysts supported on the magnetic substrates was studied to understand their catalytic performances, which indicated that the co-precipitation along with hydrazine is an appropriate method for the synthesis of the superparamagnetic nanoparticles over the porous substrates with sizes less than 30nm.

TL;DR: In this paper, a polyamide (PA)-zinc oxide (ZnO) nanocomposite membrane was fabricated by embedding various amounts of ZnO nanoparticles (ranging from zero to 1.0 ) into the membrane matrix.

TL;DR: In this paper, a new coordination polymer of nickel(II) involving bridging fumarato viz. catena has been synthesized in purely aqueous medium at room temperature and the crystal structure of the polymer has been determined by single crystal X-ray Diffraction analysis.

TL;DR: In this paper, the acidic agent (BuSO3H) coated on core-shell Fe3O4 nanomagnetic particles was successfully designed and synthesized, and it was characterized and confirmed by different techniques such as FT-IR spectroscopy, scanning electron microscopy vibrating sample magnetometer, X-Ray diffraction, energy dispersive X-ray and Thermogravimetric analysis.

TL;DR: Thymol encapsulated into MOFs indicated more inhibition of cell livability, when compared to the non-encapsulated drug, and among of applied hosts, MIL-53 shows not only high loading capacity but also controlled release.

TL;DR: In this paper, Samarium molybdate nanoparticles (Sm2(MoO4)3) were prepared through a hydrothermal procedure and were used to form various composites with graphene oxide (GO) and carbon nitride (C3N4).

TL;DR: In this paper, the removal of sarafloxacin (SRF) has performed using a magnetized metal-organic framework (Fe3O4/MIL-101(Fe)). Response surface methodology (RSM) was employed to achieve optimized removal efficiency.

TL;DR: In this article, the authors showed that BNPs@SiO2(CH2)3NHSO3H is a sustainable, recoverable and effective heterogeneous catalyst for multicomponent reactions.

TL;DR: A dinuclear copper(II) complex has been synthesized and characterized by several analytical techniques including single crystal X-ray diffraction analysis as discussed by the authors, where interesting supramolecular interactions are observed in the solid state of the complex.

TL;DR: In this article, a single-crystal X-ray analysis was performed on the Schiff base and two binuclear complexes were evaluated by singlecrystal x-ray analyses and the electron paramagnetic spectra were reported as well.

TL;DR: In this paper, two new isostructural coordination compounds of cobalt and zinc involving 2,2′-bipyridine and 2,5-pyridine dicarboxylate were synthesized in purely aqueous medium at room temperature.