مشخصات پژوهش

عنوان	Novel polyethersulfone nanocomposite membrane prepared by PANI/Fe 3 O 4 nanoparticles with enhanced performance for Cu(II) removal from water
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	PES, Nanocomposite membrane,PANI/Fe 3 O 4 nanoparticles, Cu(II) removal, Adsorption isotherms
چکیده	A novel mixed matrix polymeric membrane was prepared from polyethersulfone (PES) and self-produced polyaniline/iron(II, III) oxide (PANI/Fe 3 O 4 ) nanoparticles by phase inversion method. The core-shell structured PANI/Fe 3 O 4 nanoparticles were verified and characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and fourier transform infrared spectroscopy (FTIR). Three different amounts of nanoparticles were introduced into the casting solutions to obtain the optimum value. According to the performance test, the membrane with 0.1 wt% nanoparticles indicated the highest Cu(II) ion removal but the lowest pure water flux. This is caused by nanoparticles located in the superficial pores of the membrane during preparation i.e., surface pore blockage. Morphological analysis including field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) as well as membrane performance tests revealed that adsorption is the most possible separation mechanism by the membranes. For better investigation of the adsorption mechanism, several isotherm models such as Langmuir, Freundlich and Redlich-Peterson were tested. Based on the isothermal results, the Redlich-Peterson model offered superior fitness indicating relatively complex adsorption mechanism. The reusability of the nanocomposite membrane was confirmed for several sequential adsorption-desorption processes using EDTA as regenerator.
پژوهشگران	احسان صالحی (نفر چهارم)، رستم مرادیان (نفر ششم به بعد)، محمد علی خدیوی (نفر پنجم)، نگین قائمی (نفر سوم)، سید سیاوش مداعنی (نفر دوم)، پریسا دارایی (نفر اول)، بندر آستین چپ (نفر ششم به بعد)