The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extract...The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extracting Li from spent LIBs would be a strategic and perspective approach,especially with the low energy consumption and eco-friendly membrane separation method.However,current membrane separation systems mainly focus on monotonous membrane design and structure optimization,and rarely further consider the coordination of inherent structure and applied external field,resulting in limited ion transport.Here,we propose a heterogeneous nanofluidic membrane as a platform for coupling multi-external fields(i.e.,lightinduced heat,electrical,and concentration gradient fields)to construct the multi-field-coupled synergistic ion transport system(MSITS)for Li-ion extraction from spent LIBs.The Li flux of the MSITS reaches 367.4 mmol m^(−2)h^(−1),even higher than the sum flux of those applied individual fields,reflecting synergistic enhancement for ion transport of the multi-field-coupled effect.Benefiting from the adaptation of membrane structure and multi-external fields,the proposed system exhibits ultrahigh selectivity with a Li^(+)/Co^(2+)factor of 216,412,outperforming previous reports.MSITS based on nanofluidic membrane proves to be a promising ion transport strategy,as it could accelerate ion transmembrane transport and alleviate the ion concentration polarization effect.This work demonstrated a collaborative system equipped with an optimized membrane for high-efficient Li extraction,providing an expanded strategy to investigate the other membrane-based applications of their common similarities in core concepts.展开更多
The synergistic extraction of U(VI) and TI(IV) from nitric acid solution by HBMPPT (4-benzoyl-2,4-dihydrChs-methyl- andTBP (tributylphosphate ) in toluene was studied. The extraction ability of HBMPPTfor U(VI) and TI(...The synergistic extraction of U(VI) and TI(IV) from nitric acid solution by HBMPPT (4-benzoyl-2,4-dihydrChs-methyl- andTBP (tributylphosphate ) in toluene was studied. The extraction ability of HBMPPTfor U(VI) and TI(IV) was not so high, but when a little TBP was added in, theability to extract U(VI) and TI(IV) was improved. The extracted complexes maybe presented as UOZNO3.BMPPT.TBP and UOZ(BMPPT)2.TBP for U(VI), andTI(NOs)s.BMPPT.TBp and TI(NOs)z (BMPPT)z.TBP for TI(IV), respectively, inthe. synergistic extraction system. The synergistic effect of HBMPPT and TBP makesthe separation coefficient of U(VI) /TI(IV) or U(VI)/Eu(lll) reach a high value.展开更多
Some sulfoxides (petroleum sulfoxide - PSO, di-n-octyl sulfoxide - DOSO, etc.) were chosen as synergists to study the synergistic effect on the extraction reaction with HBMPPT (4-benzoy1-2,4-dihydro-5-menthy1-2-pheny1...Some sulfoxides (petroleum sulfoxide - PSO, di-n-octyl sulfoxide - DOSO, etc.) were chosen as synergists to study the synergistic effect on the extraction reaction with HBMPPT (4-benzoy1-2,4-dihydro-5-menthy1-2-pheny1-3H-pyrazol1-3-thione) for Am(III), and the synergistic separation for Am(III) and Ln(III). The synergistic extraction ability of PSO is greater than that of DOSO for Am(III). The synergistic complexes may be presented as Am.NO3.(BMPPT)2.HBMPPT.S2 (S indicates PSO or DOSO).展开更多
The synergistic extraction of uranium (VI) from nitric acid aqueous solution with a mixture of tri-n-butyl phosphate (TBP) and petroleum sulfoxides(PSO) in benzene was studied. It has been found that the maximum syner...The synergistic extraction of uranium (VI) from nitric acid aqueous solution with a mixture of tri-n-butyl phosphate (TBP) and petroleum sulfoxides(PSO) in benzene was studied. It has been found that the maximum synergistic extraction effect occurs where the molar ratio of PSO to TBP is one to two. The composition of the complex of synergistic extraction is UO2(NO3)2-TBP.PSO. The formation constant of the complex KTp=57.44.展开更多
基金supported by the National Key R&D Program of China(2022YFB3805904,2022YFB3805900)the National Natural Science Foundation of China(22122207,21988102,21905287)CAS Project for Young Scientists in Basic Research(YSBR-039).
文摘The global carbon neutrality strategy brings a wave of rechargeable lithium‐ion batteries technique development and induces an ever-growing consumption and demand for lithium(Li).Among all the Li exploitation,extracting Li from spent LIBs would be a strategic and perspective approach,especially with the low energy consumption and eco-friendly membrane separation method.However,current membrane separation systems mainly focus on monotonous membrane design and structure optimization,and rarely further consider the coordination of inherent structure and applied external field,resulting in limited ion transport.Here,we propose a heterogeneous nanofluidic membrane as a platform for coupling multi-external fields(i.e.,lightinduced heat,electrical,and concentration gradient fields)to construct the multi-field-coupled synergistic ion transport system(MSITS)for Li-ion extraction from spent LIBs.The Li flux of the MSITS reaches 367.4 mmol m^(−2)h^(−1),even higher than the sum flux of those applied individual fields,reflecting synergistic enhancement for ion transport of the multi-field-coupled effect.Benefiting from the adaptation of membrane structure and multi-external fields,the proposed system exhibits ultrahigh selectivity with a Li^(+)/Co^(2+)factor of 216,412,outperforming previous reports.MSITS based on nanofluidic membrane proves to be a promising ion transport strategy,as it could accelerate ion transmembrane transport and alleviate the ion concentration polarization effect.This work demonstrated a collaborative system equipped with an optimized membrane for high-efficient Li extraction,providing an expanded strategy to investigate the other membrane-based applications of their common similarities in core concepts.
文摘The synergistic extraction of U(VI) and TI(IV) from nitric acid solution by HBMPPT (4-benzoyl-2,4-dihydrChs-methyl- andTBP (tributylphosphate ) in toluene was studied. The extraction ability of HBMPPTfor U(VI) and TI(IV) was not so high, but when a little TBP was added in, theability to extract U(VI) and TI(IV) was improved. The extracted complexes maybe presented as UOZNO3.BMPPT.TBP and UOZ(BMPPT)2.TBP for U(VI), andTI(NOs)s.BMPPT.TBp and TI(NOs)z (BMPPT)z.TBP for TI(IV), respectively, inthe. synergistic extraction system. The synergistic effect of HBMPPT and TBP makesthe separation coefficient of U(VI) /TI(IV) or U(VI)/Eu(lll) reach a high value.
文摘Some sulfoxides (petroleum sulfoxide - PSO, di-n-octyl sulfoxide - DOSO, etc.) were chosen as synergists to study the synergistic effect on the extraction reaction with HBMPPT (4-benzoy1-2,4-dihydro-5-menthy1-2-pheny1-3H-pyrazol1-3-thione) for Am(III), and the synergistic separation for Am(III) and Ln(III). The synergistic extraction ability of PSO is greater than that of DOSO for Am(III). The synergistic complexes may be presented as Am.NO3.(BMPPT)2.HBMPPT.S2 (S indicates PSO or DOSO).
基金Supported by the National Natural Science Foundation of China (20171029)
文摘The synergistic extraction of uranium (VI) from nitric acid aqueous solution with a mixture of tri-n-butyl phosphate (TBP) and petroleum sulfoxides(PSO) in benzene was studied. It has been found that the maximum synergistic extraction effect occurs where the molar ratio of PSO to TBP is one to two. The composition of the complex of synergistic extraction is UO2(NO3)2-TBP.PSO. The formation constant of the complex KTp=57.44.
