Showing papers in "Arabian Journal of Chemistry in 2017"

TL;DR: A detailed overview of the synthesis, properties and applications of nanoparticles exist in different forms NPs are tiny materials having size ranges from 1 to 100nm They can be classified into different classes based on their properties, shapes or sizes.

TL;DR: In this paper, activated carbon was developed from Ficus carica bast (FCBAC), and experiments were carried out to explore methylene blue (MB) uptake by FCBAC.

TL;DR: In this article, the preparation of activated carbon from coconut husk with H 2 SO 4 activation (CSAC) and its ability to remove textile dyes (maxilon blue GRL, and direct yellow DY 12), from aqueous solutions were reported.

TL;DR: In this paper, the effect of the parameters such as pH, initial dye concentration and temperature on the removal of an anionic dye, tartrazine, from aqueous solutions has been investigated.

TL;DR: In this paper, the development status of treatment methods was summarized from six aspects, which contains flotation, coagulation, biological treatment, membrane separation technology, combined technology and advanced oxidation process.

TL;DR: In this paper, the role of analytical instrumentation and the analytical methods in assessing the quality of the drugs is highlighted and a review highlights a variety of analytical techniques such as titrimetric, chromatographic, spectroscopic, electrophoretic, and electrochemical and their corresponding methods that have been applied in the analysis of pharmaceuticals.

TL;DR: In this paper, the authors compared ultrasound and microwave assisted solvent extraction with the conventional extraction method, and determined the antioxidant activity of the extracts using DPPH and ABTS methods of antioxidant assay.

TL;DR: In this paper, the use of low-cost, abundantly available, highly efficient and eco-friendly adsorbent wood apple shell (WAS) has been reported as an alternative to the current expensive methods of removing of malachite green (MG) dye from aqueous solution.

TL;DR: The synthesis of gold nanoparticles (Au) using Galaxaura elongata (powder or extract) is demonstrated and the nanoparticles were evaluated for their antibacterial activities which showed better antibacterial effects with maximum inhibition zones of 17-16 mm by AuNPs synthesized by ethanolic extract.

TL;DR: A new method appears promising for green biosynthesis of pure Ag NPs with potent antimicrobial activity, and inhibited biofilm formation by both Escherichia coli and S. aureus.

TL;DR: The experimental results show that the CuO NPs can induce apoptosis and suppress the proliferation of HeLa cells.

TL;DR: In this article, the authors used 1H NMR, fluorescence spectroscopy, and infrared spectrography to obtain structural and physicochemical properties of Moroccan Laminaria digitata brown seaweed.

TL;DR: In this paper, the first time, silver nanoparticles were successfully synthesized using Calliandra haematocephala leaf extract in the current investigation, and the as-formed silver particles were characterized by UV-Vis spectrophotometer and the characteristic surface plasmon resonance peak was identified to be 414nm.

TL;DR: In this article, the effect of initial pH, dosages of Fe 2+ and H 2 O 2, dye concentration and temperature on the color and Chemical Oxygen Demand (COD) removal was studied in a batch reactor.

TL;DR: In this paper, four factors at three level central composite face centered design were employed to study and optimize the process variables on extraction of bioactive compounds (total anthocyanin, phenolic and flavonoid content) from Nephelium lappaceum L. fruit peel.

TL;DR: In this paper, the adsorption of methyl orange (MO) from aqueous solutions on protonated cross-linked chitosan was studied in a batch system.

TL;DR: In this paper, the response surface methodology (RSM) was employed for the removal of fluoride on Brushite and the process parameters were optimized using the statistical Box-Behnken design.

TL;DR: In this paper, a review of the QbD approach, its historical background, and regulatory needs are discussed, in detail explanation of elements of QdD i.e. method intent, design of experiment, and risk assessment is given.

TL;DR: In this article, the authors evaluated the possibility of applying advanced photo-oxidation technique (Fenton oxidation process) for removal of the residuals organic pollutants present in cosmetic wastewater.

TL;DR: In this article, the copolymers were characterized by infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), dynamic rheology and swelling measurements.

TL;DR: In this paper, the authors studied the fourth multiplicative atom-bond connectivity indices of some special molecular structures which commonly appeared in the compound of nanomaterials, and their specific expressions are given.

TL;DR: In this paper, a review of the literatures related to the biosorption capacity of water hyacinth in reducing the concentration of dyestuffs, heavy metals and minimising certain other physiochemical parameters like TSS (total suspended solids), TDS (total dissolved solids) and BOD (biological oxygen demand) in textile wastewater is presented.

TL;DR: A total of five new metal complex derivatives of 2N-salicylidene-5-(p-nitro phenyl)-1,3,4-thiadiazole, HL with the metal ions Vo(II), Co(II, Rh(III), Pd(II) and Au(III) have been successfully prepared in alcoholic medium as discussed by the authors.

TL;DR: In this article, the authors focused on achievements on landfill leachate treatment by different technology, which contains biological treatment and membrane technology, and predicted the development and prospect of landfill leACHate treatment were predicted.

TL;DR: Guar gum-nano zinc oxide (GG/nZnO) was used as an adsorbent for enhanced removal of Cr(VI) from aqueous solution as discussed by the authors.

TL;DR: In this paper, the authors used FT-IR spectroscopy to evaluate the degree of oxidation after heating and frying processes, and found that due to the temperature change in the oil there is a notable difference in the spectral band which showed that the proportions of the fatty acids were changed.

TL;DR: The benzimidazole derivatives exhibit pharmacological activities such as antimicrobial, antiviral, anticancer, anti-inflammatory, analgesic, etc. as mentioned in this paper, which is a very important role as a therapeutic agent e.g. antiulcer and anthelmintic drugs.

TL;DR: In this paper, the effects of reaction time, acid concentration, H2O2 concentration, liquid/solid mass ratios and reaction temperature on the leaching rate were investigated to remove Al, Cu, Mn, Ni, Co, and Li and about 65% Cu are leached in two stages.

TL;DR: This study evidenced that biogenic nanoparticles could affect the bacterial replication, protein leakage and eventually cell death, and might be used for active antimicrobial agents for the chronic infections.

TL;DR: In this paper, a green and simple procedure for biosynthesis of ZnO nanoparticles using Candida albicans as eco-friendly reducing and capping agent was described, which was used as catalyst for the fast and efficient synthesis of steroidal pyrazolines (4−9) from α, β-unsaturated steroidal ketones (1−3).