The leaching behavior of copper sulfides in concentrated cupric chloride solution at 95 °C and at ambient pressure was studied in order to scrutinize the leaching behavior of a single bornite and four different chalcopyrite concentrates obtained from various mines around the world. The highest ...

Small amount of cupric silicate was incorporated into copper-based catalyst to produce a series of modified ternary Cu–Zn–Al catalysts for methanol synthesis from synthesis gas. The test results showed that the Cu-based catalyst modified with 1% CuSiO3 exhibits the highest activity. The cupric...

Anodic porous alumina (APA) with its positively charged surface can be dyed by electrostatic interactions with negatively charged dye molecules. In this study, an anionic surfactant, sodium dodecyl sulfate (SDS) was found to allow such use of cationic dyes as well, using rhodamine B (RB) as a te...

Suppression of electrochemical activity (cathodic activity) on CFRP surface at cathodic potentials consistent with galvanic coupling of CFRP with active metals like aluminium and zinc have been demonstrated by electrochemical treatment of CFRP surface in the presence of sodium dodecyl sulphate (...

A coprecipitation method using sodium dodecyl sulfate (SDS) and aluminum hydroxide was designed for the efficient removal of three cationic dyes: methylene blue (MB), malachite green (MG), and crystal violet (CV), from water. The coprecipitation occurred by the hydrolysis of Al(III) ions in the ...

In a broad environmental study in St. Joseph County, Indiana, elemental data from ∼2000 soil samples and ∼800 paint samples were collected with X-ray Fluorescence (XRF) spectroscopy. The observed lead concentrations were compared to other elemental concentrations in these data. A strong correl...

The issue of obtaining heterostructures from strontium bismuthate and strontium carbonate is discussed. Effect of increase of photocatalytic activity of such heterostructures at the certain weight ratio of strontium carbonate is discovered. It is shown that increase of photocatalytic activity is...

Synthesis of high-efficiency photocatalysts and revealing the photocatalytic mechanism are of far-reaching significance for its commercial applications. Therefore, we design and favorably fabricate the carbonate intercalated Bi2WO6 with oxygen vacancies via employing a mild hydrothermal method w...

The growth behavior of anodic porous alumina formed via anodizing in a new electrolyte, squaric acid (3,4-dihydroxy-3-cyclobutene-1,2-dione), is reported for the first time. A high-purity aluminum foil was anodized in a 0.1 M squaric acid solution at 293 K and a constant applied potential of 100...

The growth behavior of anodic porous alumina formed by anodizing in novel electrolyte solutions, the cyclic oxocarbon acids croconic and rhodizonic acid, was investigated for the first time. High-purity aluminum specimens were anodized in 0.1 M croconic and rhodizonic acid solutions at various c...

Conversion of the ester substituents on the cyclobutene π-bond of dimethyl tricyclo[4.2.1.02,5]nona-3,7-diene-3,4-dicarboxylate to the corresponding acid chloride increases the cycloaddition reactivity toward quadricyclane so dramatically that the reaction temperature can be dropped from 180 °...

(O-acyl) ω-hydroxy fatty acids (OAHFAs) are a recently found group of polar lipids in meibum. Since these lipids can potentially serve as a surfactant in the tear film lipid layer, the surface properties of a molecule of this lipid class was investigated and compared with a structurally related...

Strontium fluoride (SrF2) nanoparticles were synthesized using strontium chloride-choline chloride-water deep eutectic system at 80 °C. XRD, FESEM, TEM, EDS and Raman spectroscopy were employed to characterize the synthesized nanoparticles. The analytical results confirmed the synthesis of SrF2...

The hydrozirconation of 9-(Z)-octadecenylmethyl-sulphide, 9-(Z)-octadecenyl phenyl sulphide and 9-(Z)-octadecenyl phenyl sulphone have been studied. These compounds underwent substantial elimination of the functional group, yielding after hydrolysis, along with saturated and unsaturated sulphide...

The hydrogenation of methyl-9-octadecenoate (methyl oleate) into 9-octadecen-1-ol (oleyl alcohol) was carried out in the presence of RuSnBAl2O3 catalysts at 8.0 MPa and 270°C. The selectivity to unsaturated alcohol (oleyl alcohol) was enhanced significantly by adding tin to ruthernium and r...

An ion chromatographic method for rapid and direct determination of iodide in seawater samples is reported. Separation was achieved using a laboratory-made C30 packed column (100 mm × 0.32 mm i.d.) modified with polyoxyethylene oleyl ether, with an aqueous solution of 300 mM sodium chloride as ...

Compared with quaternary ammonium cationic surfactants with saturated alkyl chains, quaternary ammonium cationic surfactants with one double-bond in their alkyl chains, when mixed with appropriate counterions (in certain molar concentration ratios, ξ), can reach much lower effective drag-reduct...

Liquid–liquid extractions using the mixtures of aliphatic acids and oleyl alcohol as extractants are investigated to improve isopropanol and butanol (IB) production in fed-batch fermentation. Extractive fermentation with a mixture of tetradecanoic acid (30%) and oleyl alcohol improved IB produc...

Retrospective in silico screening of analytical data for the identification of new or emerging disinfection by-products in drinking waters could be useful to assess quality and potential hazards, as well as help implement mitigation procedures more rapidly. Herein, the first study coupling ion e...

The spin trapping behavior of several ethyl-substituted EMPO derivatives, cis- and trans-5-ethoxycarbonyl-3-ethyl-5-methyl-pyrroline N-oxide (3,5-EEMPO), 5-ethoxycarbonyl-4-ethyl-5-methyl-pyrroline N-oxide (4,5-EEMPO), cis- and trans-5-ethoxycarbonyl-5-ethyl-3-methyl-pyrroline N-oxide (5,3-EEMPO...