Электронный каталог

Статья

Tshisano, K.
Functionalized Polyethylene Terephthalate Nanofiber Adsorbents for Prospective Metal Recovery from Spent Lithium-Ion Batteries / K.Tshisano, A.Rossouw, N.Drozhzhin, A.Nechaev, [a.o.]. – Text : electronic // Water, Air and Soil Pollution. – 2025. – Vol. 236, No. 6. – P. 350. – URL: https://doi.org/10.1007/s11270-025-07992-2. – Bibliogr.: P.350-(13-15).

The lack of economically viable and environmentally friendly recycling processes to recover valuable metals from spent lithium-ion batteries (LIBs) has resulted in an environmental pollution and a high risk of metal resource shortage. Among various approaches, adsorption using electrospun nanofber adsorbents has attracted research interest due to several distinctive properties. This study synthesized electrospun polyethylene terephthalate (PET) nanofber adsorbent which was functionalized with Di-2-ethylhexyl phosphoric acid (DEHPA) to recover Ni, Co, or Mn metal ions. The pristine and modifed electrospun nanofbers were characterized using Fourier Transform Infrared spectroscopy (FTIR)- Attenuated Total Refection (ATR), X-ray Photoelectron Spectroscopy (XPS), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), Thermogravimetric Analysis (TGA), and X-ray Difraction (XRD). The adsorption kinetics and capacity of the modifed PET-DEHPA nanofbers were obtained at optimum pH 4; 60 min of contact time and 100 mg/L initial metal concentration. The adsorption capacity of PET-DEHPA nanofbers for Ni, Co and Mn metal ions was 80 mg/g, 98 mg/g, and 118 mg/g, respectively. The selectivity of Mn over Ni and Co metal ions was also examined at pH 4 and showed that the recovery efciencies were 5%; 11% and 58% for Ni, Co and Mn, respectively. Thus, indicating that the modifed PET-DEHPA nanofber was selective for Mn ions. The desorption and regeneration were also studied in solutions of nitric acid and Ni, Co and Mn ions, and results showed that PET-DEHPA nanofber was able to withstand over 5 cycles, highlighting its potential in economic viability and sustainability. Overall, this study presents a new and promising approach for recycling Mn ions from solutions of spent LIBs



ОИЯИ = ОИЯИ (JINR)2025
Спец.(статьи,препринты) = С 350 - Приложения методов ядерной физики в смежных областях
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей