Published in Chemical Papers
AbstractThe main purpose of this manuscript was to study the electropolymerization using cyclodextrin as a monomer for application as electrochemical sensors. This process was first studied by Morales et al. and will be discussed in this work using a systematic and descriptive approach. For that, the voltammetric behavior of a β-cyclodextrin electr...
Published in Chemical Papers
In the present work, a process concept is proposed and assessed for the separation of per- and poly-fluoroalkyl components referred to as “PFAS” from the activated carbon used in the process of water filtration and further utilization of fluorine as sodium fluoride. PFAS components are highly toxic materials, which have been spread in soil and wate...
Published in Chemical Papers
The solubility of crude oil residue in contaminated soil (logSs\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \log S_{\text{s}} $$\end{document}) from six locations i...
Published in Chemical Papers
For the first time in this work, 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (Purpald®) polymer film on the surfaces of disposable pencil graphite electrodes (PGEs) were successfully electrosynthesized. The optimized conditions of electropolymerization of Purpald® film were also investigated. Electrochemical deposition was carried out by cyclic v...
Published in Chemical Papers
Triterpenic methylketones, known earlier and obtainable as a result of oxidative transformation of double bond(s) in 2-cyano-3,4-secoderivatives of the lupane and 18αH-oleanane types, can be regarded as promising intermediates for synthetic transformation. This study has demonstrated the acid-catalyzed α-bromination of methylketones as capable of p...
Published in Chemical Papers
Fluorocarbon surfactants are a key ingredient of aqueous film-forming foam (AFFF) extinguishing agent. As is well known, the most widely used fluorocarbon surfactants are perfluorooctane sulfonates (PFOS) and theirs derivatives. However, PFOS has been restricted due to its drawbacks such as toxicity, bio-accumulation and resistance to biodegradatio...
Published in Chemical Papers
A series of Mo/ZSM-5 catalysts prepared by solid-state ion exchange at different Mo/Al molar ratios were characterized and tested in ethane and ethylene ammoxidation into acetonitrile. It has been concluded that the low-exchanged solid (Mo/Al = 0.2) stabilized MoO3, [Mo2O7]2− and [Mo7O24]6− species. However, besides these species, the solids prepar...
Published in Chemical Papers
Lu(OH)CO3:Ln3+/LuBO3:Ln3+ (Ln = Eu, Tb) nanospheres have been synthesized by the soft chemistry route. This synthesis process does not require the addition of any organic solvents and surfactant. The whole process consists of homogeneous precipitation and hydrothermal process. First, uniform spherical Lu(OH)CO3:Ln3+ (Ln = Eu, Tb) nanoparticles with...
Published in Chemical Papers
Noncovalent dimer and trimer adducts obtained from interaction of nido-C4B2H6 with one and two HF molecules were investigated at MP2/aug-cc-pVTZ computational method. In the trimer adducts, two types of geometrical structures were observed. In one kind, no interaction occurred among HF molecules, while in the other ones HF molecules affected the cl...
Published in Chemical Papers
The polymer of m-phenylenediamine (poly(m-PDA)) which was synthesized by mild laccase catalysis in an aqueous buffer (10 mM citrate phosphate, pH 3) was investigated for the adsorption of several heavy metal ions including Pb2+, Cu2+, Co2+, and Cr3+. In the preliminary study for the adsorption of Pb2+ by poly(m-PDA), the adsorbed amount of Pb2+ was...
