Transport and Separation of the Silver Ion with n–decanol Liquid Membranes Based on 10–undecylenic Acid, 10–undecen–1–ol and Magnetic Nanoparticles

Autor:	Aurelia Cristina Nechifor, Paul Constantin Albu, Constantin Bungau, Ovidiu Oprea, Gheorghe Nechifor, Szidonia-Katalin Tanczos, Florentina Mihaela Păncescu, Mihail-Răzvan Ioan, Alexandra Raluca Grosu, Vlad-Alexandru Grosu
Rok vydání:	2021
Předmět:	magnetic nanoparticles 10-undecenol carrier Silver ion transport Materials science bulk liquid membranes silver separation Chemical technology Process Chemistry and Technology Analytical chemistry 10-undecilenic acid carrier Nanoparticle Filtration and Separation TP1-1185 silver transport oxide nanoparticles turbulence promotors Separation process Chemical engineering Membrane Differential scanning calorimetry Phase (matter) Chemical Engineering (miscellaneous) Magnetic nanoparticles TP155-156 Fourier transform infrared spectroscopy
Zdroj:	Membranes; Volume 11; Issue 12; Pages: 936 Membranes, Vol 11, Iss 936, p 936 (2021)
ISSN:	2077-0375
DOI:	10.3390/membranes11120936
Popis:	This paper presents a transport and recovery of silver ions through bulk liquid membranes based on n–decanol using as carriers 10–undecylenic acid and 10–undecylenyl alcohol. The transport of silver ions across membranes has been studied in the presence of two types of magnetic oxide nanoparticles obtained by the electrochemical method with iron electrodes in the electrolyte with and without silver ions, which act as promoters of turbulence in the membrane. Separation of silver ions by bulk liquid membranes using 10–undecylenic acid and 10–undecylenyl alcohol as carriers were performed by comparison with lead ions. The configuration of the separation module has been specially designed for the chosen separation process. Convective-generating magnetic nanoparticles were characterized in terms of the morphological and structural points of view: scanning electron microscopy (SEM), high-resolution SEM (HR–SEM), energy dispersive spectroscopy analysis (EDAX), Fourier Transform InfraRed (FTIR) spectroscopy, thermal gravimetric analysis (TGA), differential scanning calorimetry and magnetization. The process performance (flux and selectivity) was tested were tested for silver ion transport and separation through n–decanol liquid membranes with selected carriers. Under the conditions of the optimized experimental results (pH = 7 of the source phase, pH = 1 of the receiving phase, flow rate of 30 mL/min for the source phase and 9 mL/min for the receiving phase, 150 rot/min agitation of magnetic nanoparticles) separation efficiencies of silver ions of over 90% were obtained for the transport of undecenoic acid and about 80% for undecylenyl alcohol.
Databáze:	OpenAIRE
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