Rhenium (Re) is a good nonradioactive alternative of technetium-99 (99Tc), which is a β emitter causing long-term radioactive toxicity due to its long half-life and high yield in nuclear reactors. TcO4−, the dominant form of 99Tc, is very easy to migrate in the environment because of its high s...

A simple, metal-free protocol for unsymmetrical biaryl coupling using H5IO6 is reported. H5IO6 was evaluated for a novel application in the oxidative cross-coupling of phenol-arene, phenol-phenol, and phenol-naphthol compounds. In this work, most of the couplings were completed within 30 min at ...

Nanostructure cerium–titanium catalysts including fluoride (F−) doped ones were prepared by impregnation (Ce/TiO2 and Ce/F–TiO2) and co-precipitation (CeTi and CeTiF) method, and tested as ozonation catalysts for low-temperature NOX removal ranging from 40 to 180 °C. Interestingly, the doping...

The effects of inulin-type fructans (ITF)-containing yacon flour (YF) on Fe bioavailability from ferric pyrophosphate (FP) were evaluated in Fe-deficient rats using the Hb repletion efficiency (HRE) assay. Weanling male Wistar rats were fed a low-Fe diet (12 mg/kg) for 15 days followed by 2 week...

Ferric iron is commonly used for sulfide precipitation in sewers, thus achieving corrosion and odour control. Its impact on the activities of sulfate-reducing bacteria and methanogens in anaerobic sewer biofilms is investigated in this study. Two lab-scale rising main sewer systems fed with real...

Ferric salts will influence the thermophilic anaerobic digestion of waste activated sludge (WAS). FeCl3 was found to contribute to the anaerobic digestion process with a cumulative biogas production of 357 mL/gVS, 79.6% higher than that in the control group, and Fe2(SO4)3 had no distinct impact,...

An investigation into the effect of ferric chloride (FeCl3) on the disinhibition of excessive volatile fatty acids (VFAs) in sludge thermophilic anaerobic digestion (AD) system was performed. The optimum dosing time of FeCl3 was tested with the time interval of 0 h, 36 h, 72 h, 108 h and 144 h. ...

Ferric oxide nanoparticles (FONPs) were used to facilitate dark hydrogen fermentation using Enterobacter aerogenes. The hydrogen yield of glucose increased from 164.5 ± 2.29 to 192.4 ± 1.14 mL/g when FONPs concentration increased from 0 to 200 mg/L. SEM images of E. aerogenes demonstrated the ...

This study systematically evaluated the effect of ferric iron on sulfate reduction to sulfide, feed digestion and fermentation, methane production, and populations of select ruminal microbes using in vitro rumen cultures. Ferric oxide (Fe2O3) and ferric citrate (C6H5FeO7) at six concentrations (...

Iron-based materials have been suggested as environmentally-friendly additives that can enhance methane production during anaerobic digestion (AD). In this study, the effects of ferric oxide (Fe2O3) addition on methane production were investigated during swine manure AD. In addition, the effects...

Besides undergoing O-demethylation in vivo the triarylethylene antiestrogen nitromifene [1(4-(2-pyrrolidinylethoxy)phenyl)-1(4-methoxy)-phenyl-2-phenyl-2-nitroethene, 1] undergoes biotransformation via nitroreduction, ethene bond cleavage, and pyrrolidine ring oxidation affording ketone metaboli...

Intensities of [M + 1]+ ions in mass spectra of methyl esters of C8–C14 acids exceeded theoretical values, deviation was greatest for the shortest chain esters and for methyl decanoate was four times the calculated intensity. Similar effects were also observed in spectra of decanoates of C2–C6...

In the present investigation, an attempt has been made to study the fuel properties, engine performance and emission of a diesel engine by mixing ethyl hexyl nitrate (EHN) with n-butanol-diesel-biodiesel blends. The engine test was carried out at full throttle opening in a single cylinder direct...

Each year in France, about 1300 tons of spent Ni–Cd batteries are collected. Their treatment consists of crushing, physical separation, acidic leaching of electrode materials, separation and recovery of metals leached with different processes. In this work, the selective precipitation of cadmiu...

The aim of this work is to develop and discuss a lumped kinetic model to simulate the pyrolysis and combustion behavior of methyl decanoate. Validation of the lumped kinetic model of methyl decanoate in a very wide range of conditions, with temperature ranging from 500 to more than 2000 K, press...

Specifically 13C-labeled quinoline-2-carboxylate derivatives were synthesized from quinoline and used to study the biosynthesis of thiostrepton in a strain of Streptomyces laurentii. 13C NMR analysis of thiostrepton recovered after feeding methyl (RS)-[11-13C]-4-(1-hydroxyethyl)quinoline-2-carbo...

We have demonstrated three component reaction of isatin, enaminone and ethyl cyanoacetate leading to sprirooxindole scaffold without catalyst in water. The synthetic protocol has several advantages like wide substrate scope, atom-economy and operationally simple experimental procedures which pro...

(S)-(+)-1-(4-{2-[Bis(4-fluorophenyl)methoxy]ethyl}piperazin-1-yl)-2-phenyl-2-propanol, which is a promising candidate as a cocaine abuse therapeutic agent, is prepared in several steps. The key asymmetric step is the catalytic enantioselective addition of dimethylzinc to either 2-chloro or 2-bro...

New 1:1 alternating copolymers of 2-methyl-2-oxazoline with (i) α-chloroacrylic acid and (ii) α-bromoacrylic acid were synthesized and characterized by i.r., n.m.r. and the products of alkaline hydrolysis. The copolymerization occurred at a temperature of 60°C without any added catalyst or in...

Zwitterion copolymerization without initiator of α-bromoacrylic acid as an electrophilic monomer with 2-methyl-2-oxazoline or 2-ethyl-2-oxazoline as a nucleophilic monomer was investigated. The copolymerizations were performed under various experimental conditions. Copolymers were characterized...