TY - JOUR
T1 - Crown ether-immobilized cellulose acetate membranes for the retention of GD (III)
AU - Serbanescu, Oana Steluta
AU - Pandele, Andreea Madalina
AU - Oprea, Madalina
AU - Semenescu, Augustin
AU - Thakur, Vijay Kumar
AU - Voicu, Stefan Ioan
PY - 2021/11/17
Y1 - 2021/11/17
N2 - This study presents a new, revolutionary, and easy method of separating Gd (III). For this purpose, a cellulose acetate membrane surface was modified in three steps, as follows: firstly, with aminopropyl triethoxysylene; then with glutaraldehyde; and at the end, by immobilization of crown ethers. The obtained membranes were characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS), through which the synthesis of membranes with Gd (III) separation properties is demonstrated. In addition, for the Gd (III) separating process, a gadolinium nitrate solution, with applications of moderator poison in nuclear reactors, was used. The membranes retention performance has been demonstrated by inductively coupled plasma mass spectrometry (ICP-MS), showing a separation efficiency of up to 91%, compared with the initial feed solution.
AB - This study presents a new, revolutionary, and easy method of separating Gd (III). For this purpose, a cellulose acetate membrane surface was modified in three steps, as follows: firstly, with aminopropyl triethoxysylene; then with glutaraldehyde; and at the end, by immobilization of crown ethers. The obtained membranes were characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS), through which the synthesis of membranes with Gd (III) separation properties is demonstrated. In addition, for the Gd (III) separating process, a gadolinium nitrate solution, with applications of moderator poison in nuclear reactors, was used. The membranes retention performance has been demonstrated by inductively coupled plasma mass spectrometry (ICP-MS), showing a separation efficiency of up to 91%, compared with the initial feed solution.
KW - Cellulose acetate
KW - Crown ether
KW - Gadolinium retention
UR - http://www.scopus.com/inward/record.url?scp=85119720364&partnerID=8YFLogxK
U2 - 10.3390/polym13223978
DO - 10.3390/polym13223978
M3 - Article
C2 - 34833276
AN - SCOPUS:85119720364
SN - 2073-4360
VL - 13
JO - Polymers
JF - Polymers
IS - 22
M1 - 3978
ER -