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Removal of Cr(VI) through calixarene based polymer inclusion membrane from chrome plating bath water
Scopus
Toplam 161 atıf DOI
In this study, a calixarene based polymer inclusion membrane was employed for the removal of Cr(VI) from chrome plating bath water. The prepared polymer inclusion membrane was characterized by using Fourier transform infrared (FTIR) spectroscopy, atomic force microscopy (AFM) and contact angle measurements. The effects of carrier concentration, plasticizer type and temperature on the transport, the membrane's stability and thickness were examined. The transport efficiency of Cr(VI) using the polymer inclusion membrane was approximately 97.69%. The kinetic results demonstrated that Cr(VI) can be transported from the chrome plating bath water to the acceptor phase with high selective and efficiency. The experimental results showed the prepared polymer inclusion membrane (PIM) can be used effectively for the removal of Cr(VI) from the industrial wastewater.
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Synthesis and investigation of catalytic affinities of water-soluble amphiphilic calix[n]arene surfactants in the coupling reaction of some heteroaromatic compounds
Scopus
Havuzumuzda 21 atıf almış
Six water-soluble calix[n]arene-based Brønsted acid-type catalysts with amphiphilic groups were successfully synthesized by incorporating sulfonic acid moieties. Their structures were characterized using FTIR,1H NMR,13C NMR, APT-NMR, and elemental analysis techniques. Moreover, their catalytic capabilities were evaluated in the coupling reaction of 2-methylfuran and/or N-methylindole with some sec-alcohols in aqueous media. The association of their surfactant abilities, and the effects of water amount used and reaction durations on the catalytic activities of these amphiphilic calix[n]arene derivatives were also investigated. Observations indicated that these amphiphilic calix[n]arene catalysts exhibited high catalytic activities in the coupling reactions of 2-methylfuran and N-methylindole with some alcohols in water.
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Kurumlar (2)
Giresun Üniversitesi
Giresun, Turkey
Selçuk Üniversitesi
Selçuklu, Turkey