Showing papers in "Arabian Journal of Chemistry in 2018"

TL;DR: In this article, a chitosan nano ZnO composite film was prepared by a simple one-pot procedure and the composite materials were ably characterized by various physico-chemical methods.

TL;DR: In this article, the potential of Phytolacca americana L. as a biosorbent for Pb(II) removal from aqueous solutions was investigated, and experiments were performed to evaluate the effect of biosorbency dosage, pH, initial Pb (II) concentration and contact time on the Pb-II removal.

TL;DR: In this article, a simple method has been developed for preparation of silver nanoparticles (AgNPs) based on the use of graphene quantum dots (GQDs) as a reducing agent and a stabilizer.

TL;DR: In this article, the photocatalytic treatment of pollutants in waste water using methylene blue (MB) and methyl orange (MO) as the model dyes was investigated.

TL;DR: In this paper, a suitable orthopedic implant hybrid material (M-HAP/PCL/GO) was synthesized by using positively charged calcium ions of mineralized HAP combined with Polycaprolactone-negatively charged graphene oxide (PCL-GO).

TL;DR: In this paper, a concept of silver nanoparticles (AgNPs) as "nano-bullets" can act for a dual mode like root enhancer and pathogen destroyer on the target site.

TL;DR: In this paper, a solvothermal method was used to precipitate metal-organic frameworks (MOFs) in well-dispersed carboxy functionalized multiwalled carbon nanotubes (FMWCNTs).

TL;DR: In this paper, the essential oil and aqueous distillate composition of Origanum vulgare L. were analyzed by GC/MS and the results revealed that all three samples showed significant antibacterial activity against all tested strains.

TL;DR: In this article, the Zolitic imidazole framework 8 (ZIF-8) nanoparticles were successfully synthesized in an aqueous solution at the ambient condition with a relatively low molar ratio of zinc salt and an organic ligand.

TL;DR: In this article, the photocatalytic reduction of hexavalent chromium using visible light irradiation was assessed by UV-vis by following the decrease of the characteristic absorbance at ∼352 nm in the presence of CuS NSs.

TL;DR: In this article, the main phenolic composition of hydroethanolic extracts from stems and leaves of E. africanus, along with the assessment of their antioxidant properties were described.

TL;DR: In this paper, a copolymer microgel was generated by in situ reduction of copper nitrate followed by the air oxidation process, their fabrication is confirmed by powdered X-ray diffraction analysis and the average size of CuO NPs was found to be 24 nm having monoclinic shapes.

TL;DR: In this article, the effect of physicochemical properties of the catalyst on photocatalytic activity enhancement was investigated with the information obtained from XRD, DRUV, PL, FESEM and XPS.

TL;DR: In this paper, a series of OMS-2 doped with Co, Cu, and Ce were tested in heterogeneous activation of peroxymonosulfate (PMS) for diclofenac (DCF) degradation in aqueous solutions.

TL;DR: In this paper, the authors reported on the preparation of electrochemically reduced graphene oxide (ERGO)-poly(eriochrome black T) assembled gold nanoparticles for the simultaneous determination of ascorbic acid (AA), dopamine (DA) and uric acid(UA) in PBS pH 6.0.

TL;DR: In this article, a metal oxide/metal sulphide-based nanoheterostucture mediated with graphene nanosheets was constructed and the specific capacitance of the single rGO, binary and ternary CdS/rGO/CeO2 heterostructures were measured.

TL;DR: In this article, the authors applied different monomer ratios (1:1 and 1:9) to determine the suitable chain composition to synthesize the copolymer in lithium perchlorate containing acetonitrile.

TL;DR: Wang et al. as discussed by the authors investigated constitutive phenolic compositions and evaluated antioxidant activities of Acer truncatum leaves (ATL) through its whole growing season, and found that all seasonal ATL samples contained remarkable phenols, tannins and flavonoids, and exhibited high antioxidant capacities.

TL;DR: In this article, the photocatalytic degradation of chrysene in polluted seawater was successfully achieved under illumination of natural sunlight using carbon modified titanium oxide (C-TiO2) nanoparticles.

TL;DR: The promising results obtained by in vivo experiments point out that silica nanoparticle derivatives are an efficient permeable delivery vehicle that are able to cross the BBB and reach the brain tissues via specific and non-specific mechanisms.

TL;DR: In this paper, 1% Pt/CeO 2 (30%)/Clinoptilolite was synthesized via HNO 3 treatment and co-precipitation methods and then 1% Pt was dispersed over support by ultrasound assisted wet impregnation.

TL;DR: In this paper, the effect of hue, lightness and chroma on the color of natural citrines was analyzed, and it was shown that the effects of hue and lightness on the colour of a natural citrine are positively correlated with its color.

TL;DR: In this article, a new, facile, cost-effective and environment-friendly protocol is reported for the synthesis of 1-amidoalkyl-2-naphthols exploring tannic acid as a novel, cheap and biodegradable catalyst.

TL;DR: In this article, the effects of initial concentration, temperature, and pH on the adsorption of NPX on γ-FeOOH were studied, and it was found that the equilibrium time of γ -FeOH adsorbed NPX was 240 min.

TL;DR: In this paper, a green synthetic route developed toward unveiling a mechanism of formation of single crystalline gold (Au) nanoplates, with a flat surface using an aqueous extract of red beetroot waste (BRW) i.e. peel, at room temperature, the first time.

TL;DR: In this paper, a nanocomposite of alumina (Al2O3) nanoparticles confined graphene oxide (GO) sheet acts as a modifier for carbon paste electrode (CPE) for a sensitive detection of NADH level in a mediatorless detection scheme.

TL;DR: In this article, the authors evaluated the effect of salicornia ramosissima (J. Woods) ethanolic extract on carbon tetrachloride (CCl 4 )-induced testicular damage in a mouse model and identified secondary metabolites present in the tested extract.

TL;DR: A new series of azo reactive dyes containing free chlorine atoms have been synthesized in this article, where the diazotization of 4′4-diamino diphenylamine-2-sulfonic acid is followed by azo coupling with 1-amino-8-naphthol-3,6-disulfonic acids in alkaline medium to yield intermediate dye.

TL;DR: In this paper, the Tribological properties of FeCrNi/CBN composite coatings with high velocity arc spraying are studied by means of images and components and cross-section microstructure of coatings.

TL;DR: In this article, the concentrations of various elements in these two plants are examined and the total and water extractable elemental concentrations were determined in both the plants, and the levels of selected elements in L. javanica leaves collected from ten different locations around the KwaZulu-Natal province were also investigated.