| Title |
Iron oxide/poly (vinylidene fluoride-hexafluoropropylene) membranes for lithium-ion battery separator and arsenic removal applications |
| ID_Doc |
27150 |
| Authors |
Serra, JP; Salazar, H; Fidalgo-Marijuan, A; Gonçalves, R; Martins, PM; Lanceros-Mendez, S; Costa, CM |
| Title |
Iron oxide/poly (vinylidene fluoride-hexafluoropropylene) membranes for lithium-ion battery separator and arsenic removal applications |
| Year |
2023 |
| Published |
Journal Of Environmental Chemical Engineering, 11.0, 6 |
| DOI |
10.1016/j.jece.2023.111371 |
| Abstract |
The here presented experiments report on bi-functional iron oxide (Fe3O4)/poly (vinylidene fluoride-hexafluoropropylene) -PVDF-HFP porous membranes prepared through thermal-induced phase separation (TIPS) for As(III) and As(V) adsorption and posterior second life as a lithium-ion battery (LIB) separator considering a circular economy paradigm. The bi-functional membranes' physical-chemical properties, their ability to remove arsenic species from aqueous solution, and subsequent performance as a battery separator for LIB were assessed. A highly porous structure characterises the membranes, and the incorporation of nano-particles (NPs) does not change the chemical and thermal properties of the polymeric membrane. The membrane with 10 wt% of Fe3O4 revealed the ability to remove approximately 81% and 82% of arsenite and arsenate from water, presenting equally remarkable reusability after five cycles, with an efficiency loss below 12%. The second life of this material as a battery separator revealed an ionic conductivity of 2.3 mS.cm-1 and a discharge capacity of 60 mAh.g-1 at 2 C-rate. This work proves the multifunctionality of the membranes and the possibility of a second life. |
| Author Keywords |
Arsenic removal; Circular economy; Lithium-ion battery separator; Nanocomposites; Sustainability |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001110785400001 |
| WoS Category |
Engineering, Environmental; Engineering, Chemical |
| Research Area |
Engineering |
| PDF |
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