The electropolymerization of pyrrole (Py), 3-(4-tert-butylphenyl)thiophene (TPT) monomer or the mixed Py and TPT monomers on stainless steel mesh substrate were performed in 1 M LiClO4/acetonitrile solution. A much lower potential of 0.75 V was required for the co-electropolymerization of Py and...

The conformational analysis of some 4′-substituted 2-(phenylselanyl)-2-(ethylsulfanyl)-acetophenones bearing the substituents NO2 (1), Br (2), H (3), Me (4) and OMe (5) was performed by νCO IR analysis, B3LYP/6-31+G(d,p) and single point polarisable continuum model (PCM) calculations, along wi...

This work is devoted to the study of the adsorption properties of a food waste “coffee grounds” activated carbon (AC) for the uptake of acid dye orange G (OG). ACs were previously prepared from chemical activation of pyrolysed coffee ground by KOH (1 g of KOH/1 g of biomass). The AC characteri...

Extraction of polyphenolic compounds from orange peel (OP) via solid-liquid extraction (SLE) using deep eutectic solvents (DES) was investigated in this work as a means to develop sustainable separation processes to recover natural antioxidants from food waste biomass. In particular, choline chl...

Starch from orange-fleshed sweet potato cultivar was modified using dual autoclave retrogradation, annealing and lintnering modification treatment and their digestibility properties studied. The rate and extent of digestion were suitably predicted with a first-order kinetic model derived in the ...

A batch equilibrium system has been used to investigate the adsorption of methyl orange (MO) on NiO and CuO nanoparticles (NPs). The effects of experimental conditions such as initial concentration, agitation time, solution pH and temperature were examined. Langmuir and Freundlich's models ...

High-performance nitrogen-doped porous carbon adsorbents were prepared from waste cellulose fibers using the spray-drying method and used to remove methyl orange (MO) from water. The carbon adsorbents possessed a honeycomb-like turbostratic microstructure with hierarchical pores. Such waste-cell...

The present paper reports the synthesis of xanthan gum/titanium dioxide (TiO2) nanocomposite for efficient visible light-induced degradation of highly toxic methyl orange dye. Synthesized xanthan gum/titanium dioxide nanocomposite showed good photocatalytic activity due to its high surface area,...

In this study, chitosan/polyvinyl alcohol/TiO2 nanofiber was fabricated via electrospinning at a pump rate of 1.5 mL/h and voltage 6 kV. Field-emission scanning electron microscopic images showed bead free finer nanofiber. Fourier transform infrared spectra proved the formation of strong bond am...

The present research has been focused on preparation, characterization and acid orange adsorption behavior of a porous activated carbon derived from water fern. Several basic and acidic activation including green approaches have been applied for the activation process. The prepared activated car...

Zero-valent FeNPs was prepared by using ascorbic acid and Fe(NO)3 redox system in presence of cetyltrimethylammonium bromide (CTAB). The morphology of the FeNPs was determined by SEM, TEM, EDX, FT-IR, XRD, and BET of FeNPs. The batch experiments were carried out to determine the effects of adsor...

Mechanisms of cationic azo-dye Basic Orange 2 (BO2) removal by poly-γ-glutamic acid (PGA) biosorbent were quantitatively examined. The contributions of adsorption and complexation/precipitation on BO2 removal by PGA were quantified at pH3−9 and the maximum overall BO2 removal of 99.5% was obtai...

A novel, simple approach to 2-(1-alkoxyprop-1-enyl)-5-ethenylidene-4,5-dihydro-1,3-thiazoles has been disclosed through the reaction of (propargylsulfanyl)-2-aza-1,3,5-trienes (readily available from alkoxyallenes, isothiocyanates, and propargyl bromide) with potassium or sodium tert-butoxide (1...

A new tripodal amine, 3-((4-aminobutyl)(pyridin-2-ylmethyl)amino)propan-1-ol (HL) has been prepared. This has been used to synthesize a new Schiff base complex by template condensation with 2-hydroxy-3-methoxybenzaldehyde in the presence of Zn(II) metal ion in methanol. The complex has been char...

Thiourea derivative,3-(4-methoxyphenyl)-1-(pyridin-2-ylmethyl)thiourea, was synthesized. The structure of the synthesized compound (3) was elucidated by IR, UV–visible, 1H NMR, mass Spectrometry, and X-ray single crystal structure. The computational quantum chemical studies like, IR, UV, NBO an...

Multiple lines of evidence have indicated that pyruvate kinase M2 (PKM2) is upregulated in most cancer cells and it is increasingly recognized as a potential therapeutic target in oncology. In a continuation of our discovery of lead compound 5 and SAR study, the 7-azaindole moiety in compound 5 ...

The present study is dealing with the obtaining of transparent hybrid silica materials encapsulating 5,10,15,20-tetrakis(3,4-dimethoxyphenyl)-21H,23H-porphyrin designated for advanced optoelectronic devices. The porphyrin was synthesized by three methods: an Adler-type reaction between pyrrole a...

Novel 4-(3,4-dimethoxyphenyl)-2-methylthiazole-5-carboxylic acid derivatives (11–23) were synthesized from 3,4-dimethoxyacetophenone (5) in six-step procedure. Their biological activities were evaluated in the greenhouse. Some of the compounds had shown fungicidal and insecticidal activities at...

Several ring-substituted derivatives of previously studied MDR inhibitors 2-(3,4-dimethoxyphenyl)-5-(9-fluorenylamino)-2-(methylethyl)pentanenitrile and 2-(3,4-dimethoxyphenyl)-5-[(9-fluorenyl)-N-methylamino]-2-(methylethyl)pentanenitrile have been synthesised and studied with the aim of optimis...

Two series of novel ether analogs of the sigma (σ) receptor ligand 1-[2-(3,4-dimethoxyphenyl)ethyl]-4-(3-phenylpropyl)piperazine (SA4503) have been prepared. In one series, the alkyl portion of the 4-methoxy group was replaced with allyl, propyl, bromoethyl, benzyl, phenethyl, and phenylpropyl ...