This work studies the degradation of azo dye Reactive Black 5 by Ca-Al metallic particles prepared by melt-spinning and ball-milling. The morphology and the phase structure of the metallic powders were characterized and the decolorization efficiency of Reactive Black 5 solutions were assessed by...

The removal of textile azo dye, Reactive Black from the aqueous solutions by catalytic wet air oxidation in the presence of LaNiO3 perovskite catalyst has been investigated. The most suitable reaction conditions were determined by testing various the catalyst loadings, reaction temperature and p...

Nitration of N,N-diethylaniline in concentrated sulphuric acid afforded a readily separable mixture of the 3- and 4-nitro derivatives, the former being the major product. Reduction and subsequent reaction of 3-amino-N,N-diethylaniline with acid chlorides, chloroformates, isocyanates and sulphony...

Direct cycloauration of 2-phenoxypyridines with different substituents at the 5-position of the pyridine ring was carried out in an CH3CN/H2O medium, leading to isolation of cycloaurated compounds AuCl2(L) (HL=substituted 2-phenoxypyridine ligand) with alkyl, substituted alkyl, phenyl, halo, est...

Both 6-substituted aminocarbonyl and acylamino benzimidazole derivatives were designed and synthesized as nonpeptidic angiotensin II AT1 receptor antagonists. Compounds 6f, 6g, 11e, 11f, 11g, and 12 showed nanomolar AT1 receptor binding affinity and high AT1 receptor selectivity over AT2 recepto...

Cr-TiO2 supported on Fe3O4 material was synthesized using a sonochemical method. By TEM images it was possible to observe cubic morphologies and by XRD and Raman spectroscopy the anatase phase was evaluated, showing that no subsequent thermal treatment was necessary. XPS analysis shows a decreas...

Coffee husk treated with sulfuric acid (ACH) is used as a low-cost adsorbent for batch adsorptive removal of malachite green (MG) from synthetic dye solution. Structural and morphological characteristics of the prepared ACH adsorbent were analyzed by powder X-ray diffraction, Raman spectroscopy,...

New series of brilliant yellow colorants with high NIR reflectance in rare earth doped scheelite type oxides, [(LiRE)0.125Bi0.75][W0·25V0.75]O4 (RE = La–Yb) and [(LiLa)x/2Bi1-x][WxV1-x]O4 (x = 0–0.3) were developed by the ceramic route. Different advanced techniques were used to examine the s...

The highly dispersed NiTiO3@TiO2 yellow pigments with core-shell structure were prepared through calcinations of precursors obtained from the precipitation of Ni2+ on the surface of TiO2 particles. The synthesized pigments were characterized by XRD, SEM, TEM, Uv–vis spectroscopy and colorimetry...

The large yellow croaker (Larimichthys crocea) is one of the most valuable economic mariculture fish in China, and its yellowness in skin is considered as the most important traits that determine the market value. The fish skin colors present naturally silvery white during the daytime and golden...

Extraction of disperse blue 79, red 153, and yellow 119 with supercritical carbon dioxide was investigated, respectively, at 393.2 K and 30 MPa over a wide range of contact times. The dissolution rates of these three dyestuffs were compared. Equilibrium solubilities were also measured over the t...

Synthetic azo dyes have increasingly become a matter of great concern as a result of the genotoxic and mutagenic potential of the products derived from azo dye biotransformation. This work evaluates the manner in which reducing enzymes produced by Escherichia coli (E. coli) act on three disperse...

For the first time, a series of highly efficient [email protected] nanocomposite catalysts were synthesized by a one-step reduction process, subsequently characterized by inductively coupled plasma atomic emission spectroscopy (ICP-AES), powder X-ray diffraction (PXRD), scanning electron microsc...

Three series of synergistic pigments of the disazoacetoacetanilide yellow type, mainly related to C.I. Pigment Yellow 12,13,14,17, and 63, were synthesized. The synergistic effect was examined and comparison of the color properties of the synergistic pigments with those of the corresponding phys...

We reported herein the studies on in situ metal-ion complexation and H2O2 oxidation for a pyridine-2,6-dione based heterocyclic dye (C.I. Disperse Yellow 211) in the hydrazone-tautomeric form. Our results reveal that four kinds of compounds can be isolated successfully by treating this dye with ...

AbstactThe long-lived radioactive iodine (129I) is a useful geochemical tracer of radioactivity in the atmospheric environment. Although the behavior of 129I in the atmosphere is still not fully known because of lack of continuous monitoring, we recently observed clear seasonal trends in air con...

The gut microbiome is sensitive to diet and environmental exposures and is involved in the regulation of host metabolism. Additionally, gut inflammation is an independent risk factor for the development of metabolic diseases, specifically atherosclerosis and diabetes. Exposures to dioxin-like po...

Numerous methods are available for obtaining reduced graphene oxide (rGO), however, the agglomeration of rGO flakes is a major challenge for different applications. Incorporation of additives (as anti-agglomerating chemicals) along with reducing agents modifies the chemical properties of graphen...

The cooling solutions of chiral trifluoroacetylated α-aminoalcohols (TFAAA) gelate due to the formation of supramolecular fibers (strings). The strings get formed at concentrations exceeding some critical threshold, while the dispersed phase particles were constantly present in the TFAAA soluti...

Selective photoreduction of nitrophenols comes important for synthesis of pharmaceutical intermediates. Nowadays, metal-organic frameworks (MOFs) play an important role in preparation of photocatalysts because MOFs make shift from using photocatalyst in UV to visible light and upgrade photocatal...