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Monovalent Cation Exchange Membranes with Janus Charged Structure for Ion Separation Article

Wenguang Wang, Yanqiu Zhang, Xiaobin Yang, Haixiang Sun, Yadong Wu, Lu Shao

Engineering 2023, Volume 25, Issue 6,   Pages 204-213 doi: 10.1016/j.eng.2021.09.020

Abstract:

Monovalent cation exchange membranes (M-CEMs) have been extensively applied in environmental remediationpositively-charged trimesic acid/polyethylenimine surface thin layer and a negatively charged commercial cationexchange membrane (CEM).CEMs, thereby enabling the novel Janus-charged M-CEMs to possess high perm-selectivity and high total cation

Keywords： Monovalent cation exchange membranes     Janus charged structure     Selectrodialysis     Perm-selectivity     “Upper    

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Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1625-0

Abstract:

● IEM ion/ion selectivities of charge, valence, & specific ion are critically assessed.

Keywords： Ion-exchange membranes     Selectivity     Separations    

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Analysis of statistical thermodynamic model for binary protein adsorption equilibria on cation exchange

ZHOU Xiaopeng, SU Xueli, SUN Yan

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 103-112 doi: 10.1007/s11705-007-0020-x

Abstract: A study of nonlinear competitive adsorption equilibria of proteins is of fundamental importance in understanding the behavior of preparative chromatographic separation. This work describes the nonlinear binary protein adsorption equilibria on ion exchangers by the statistical thermodynamic (ST) model. The single-component and binary protein adsorption isotherms of bovine hemoglobin (Hb) and bovine serum albumin (BSA) on SP Sepharose FF were determined by batch adsorption experiments in 0.05 mol/L sodium acetate buffer at three pH values (4.5, 5.0 and 5.5) and three NaCl concentrations (0.05, 0.10 and 0.15 mol/L) at pH 5.0. The ST model was found to depict the effects of pH and ionic strength on the single-component equilibria well, with model parameters depending on the pH and ionic strength. Moreover, the ST model gave acceptable fitting to the binary adsorption data with the fitted single-component model parameters, leading to the estimation of the binary ST model parameter. The effects of pH and ionic strength on the model parameters are reasonably interpreted by the electrostatic and thermodynamic theories. Results demonstrate the availability of the ST model for describing nonlinear competitive protein adsorption equilibria in the presence of two proteins.

Keywords： fundamental importance     single-component equilibria     acceptable fitting     hemoglobin     chromatographic separation    

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Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 462-467 doi: 10.1007/s11705-009-0011-1

Abstract: EVAL hollow fiber membrane adsorbents filled with powder D061-type cation exchange resin were preparedThe results showed that EVAL hollow fiber membrane adsorbents filled with D061-type cation exchange resins

Keywords： substrate     copolymer EVAL     exchange     EVAL hollow     resin-filled content    

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Cation exchange resin supported nanoscale zero-valent iron for removal of phosphorus in rainwater runoff

XIE Bangmi,ZUO Jiane,GAN Lili,LIU Fenglin,WANG Kaijun

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 463-470 doi: 10.1007/s11783-013-0575-3

Abstract: Self-made cation exchange resin supported nanoscale zero-valent iron (R-nZVI) was used to remove phosphorusthe dosage of R-nZVI is 8 g per liter rainwater, while only 26% of phosphorus was removed when using cationexchange resin without supported nanoscale zero-valent iron under the same condition.The adsorption capacity of R-nZVI increased up to 185 times of that of the cation exchange resin at a

Keywords： nanoscale zero-valent iron(R-nZVI)     cation exchange resin     rainwater runoff     phosphorus adsorption    

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performance of EDI device in dealing with Ni2 solution with dilute departments filled with cationexchange resins

Niu Yubiao,Xu Xiaoqing,Zhao Haiyang,Zhou Zhijun

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 62-67

Abstract: text-align: justify;">Study on the feasibility of EDI device, whose dilute departments were filled with cationexchange resins and feed water was low concentration Ni2 solution, for the treatment of low-concentration

Keywords： Electrodeionization (EDI)     cation exchange resin     heavy-metal     Ni2    

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Sulfonated poly(ether ether ketone)/zirconium tricarboxybutylphosphonate composite proton-exchange membranes

GAO Qijun, HUANG Mianyan, WANG Yuxin, CAI Yuquan, XU Li

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 95-101 doi: 10.1007/s11705-008-0012-5

Abstract: However, with a fairly high degree of sulfonation (DS), SPEEK membranes can swell excessively and evenThis restricts membranes from working above a high tolerable temperature to get high proton conductivityemployed to make a composite with SPEEK polymer in an attempt to improve temperature tolerance of the membranesSPEEK/Zr(PBTC) composite membranes were obtained by casting a homogeneous mixture of Zr(PBTC) and SPEEKThe membranes containing 30 wt-% ∼ 40 wt-% of Zr(PBTC) had their methanol permeability around 10 cm·s

Keywords： homogeneous mixture     PBTC     zirconium tricarboxybutylphosphonate     Nafion115     DMFC    

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Comparison of the removal of monovalent and divalent cations in the microbial desalination cell

Shanshan CHEN,Haiping LUO,Yanping HOU,Guangli LIU,Renduo ZHANG,Bangyu QIN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 317-323 doi: 10.1007/s11783-013-0596-y

Abstract: The objectives of this study were to investigate the desalination performance of monovalent and divalent

Keywords： divalent ion     electrodialysis     ion characteristic     microbial desalination cell     monovalent ion    

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Study on the preparation and applications of novel and common use ion exchange membranes

Wang Yaoming,Wu Liang,Xu Tongwen

Strategic Study of CAE 2014, Volume 16, Issue 12,   Pages 76-86

Abstract:

Due to the special ion transfer characteristic in ion exchange membranes，the electro-membrane processes based on ion exchange membranes can achieve the separation and classificationThe ion exchange membranes processes meet with the demands of energy-saving，reuse of raw material，andHowever，the preparation and applications of homogenous in exchange membranes are still at infant stageA one-step preparation route of homogenous exchange membranes by polyacylation of ionized monomers was

Keywords： ion exchange membrane     electrodialysis     organic acid     amino acid     heavy metal wastewater    

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Novel 1,2,3-triazole-based compounds: Iodo effect on their gelation behavior and cation response

Yaodong Huang, Shuxue Liu, Zhuofeng Xie, Zipei Sun, Wei Chai, Wei Jiang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 252-261 doi: 10.1007/s11705-017-1683-6

Abstract: Two new series of 1,2,3-triazole derivatives, with and without iodo substitution, were synthesized and their gelation properties were measured. It was found that the iodo substitution at position 5 of triazole ring could greatly enhance the gelation ability. Scanning electron microscopy and X-ray diffraction reveal that the structures of the organogels from iodo and hydrogenous gelators are totally different. Iodo gels are selectively responsive to the stimuli of Hg , whereas hydrogenous gels can respond to Hg and Cu . Moreover, the reversible gel-sol transition of hydrogenous gels can be controlled by redox reaction or tuned with suitable chemicals. The single crystal analysis of reference compound ( ) suggests that there are intermolecular and intramolecular non-classical hydrogen bonding interactions but no π-π interaction in hydrogenous gelator. The great difference between the two series of compounds results from the iodo effect and implies the existence of halogen bonding interaction in the iodo compounds.

Keywords： organogelator     1     2     3-triazole derivatives     self-assembly     halogen bonding     cation response    

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Heat, mass, and work exchange networks

Zhiyou CHEN, Jingtao WANG

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 484-502 doi: 10.1007/s11705-012-1221-5

Abstract: The application of heat exchange networks (HENs), mass exchange networks (MENs), water allocation heatexchange networks (WAHENs) and work exchange networks (WENs) have resulted in the significant savingreview inspires researchers to propose more efficient and convenient methods for the design of existing exchange

Keywords： process system engineering     integration methods     heat exchange network     mass exchange network     work exchange    

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A new regeneration approach to cation resins with aluminum salts: application of desalination by its

Zhigang LIU, Shaomin ZHU, Yansheng LI

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 45-50 doi: 10.1007/s11783-010-0262-6

Abstract: A novel method for the regeneration of cation exchange resins by aluminum (Al) salts was investigated

Keywords： aluminum (Al) form resins     desalination     mixed bed (MB)     regeneration    

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Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 4,   Pages 775-792 doi: 10.1007/s11705-020-1991-0

Abstract: perspective, a relevant input was given by the membrane-based technology and the production of imprinted membranesFurthermore, the integration of imprinted membranes with traditional or membrane-based approaches isThis work discusses the concept and separation mechanisms of imprinted membranes.Finally, potential applications of imprinted membranes in hybrid processes are highlighted, and a look

Keywords： sustainable processes     membrane separation     molecular recognition     imprinted membranes     water treatment    

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TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

Frontiers in Energy 2022, Volume 16, Issue 5,   Pages 852-861 doi: 10.1007/s11708-021-0811-7

Abstract: Fuel starvation can occur and cause damage to the cell when proton exchange membrane fuel cells operate

Keywords： proton exchange membrane fuel cell (PEMFC)     fuel starvation     cell reverse     reversal tolerance anode    

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Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1725-x

Abstract:

● Effects of AER adsorption and NF on DBP precursors, DBPs, and TOX were examined.

Keywords： Disinfection byproducts     Control     Anion exchange resin     Nanofiltration     Cytotoxicity    

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Title Author Date Type Operation

Monovalent Cation Exchange Membranes with Janus Charged Structure for Ion Separation

Wenguang Wang, Yanqiu Zhang, Xiaobin Yang, Haixiang Sun, Yadong Wu, Lu Shao

Journal Article

Advancing ion-exchange membranes to ion-selective membranes: principles, status, and opportunities

Journal Article

Analysis of statistical thermodynamic model for binary protein adsorption equilibria on cation exchange

ZHOU Xiaopeng, SU Xueli, SUN Yan

Journal Article

Preparation and characterization of EVAL hollow fiber membrane adsorbents filled with cation exchange

Fengli ZHANG, Yuzhong ZHANG, Hong LI, Guangfen LI,

Journal Article

Cation exchange resin supported nanoscale zero-valent iron for removal of phosphorus in rainwater runoff

XIE Bangmi,ZUO Jiane,GAN Lili,LIU Fenglin,WANG Kaijun

Journal Article

performance of EDI device in dealing with Ni2 solution with dilute departments filled with cationexchange resins

Niu Yubiao,Xu Xiaoqing,Zhao Haiyang,Zhou Zhijun

Journal Article

Sulfonated poly(ether ether ketone)/zirconium tricarboxybutylphosphonate composite proton-exchange membranes

GAO Qijun, HUANG Mianyan, WANG Yuxin, CAI Yuquan, XU Li

Journal Article

Comparison of the removal of monovalent and divalent cations in the microbial desalination cell

Shanshan CHEN,Haiping LUO,Yanping HOU,Guangli LIU,Renduo ZHANG,Bangyu QIN

Journal Article

Study on the preparation and applications of novel and common use ion exchange membranes

Wang Yaoming,Wu Liang,Xu Tongwen

Journal Article

Novel 1,2,3-triazole-based compounds: Iodo effect on their gelation behavior and cation response

Yaodong Huang, Shuxue Liu, Zhuofeng Xie, Zipei Sun, Wei Chai, Wei Jiang

Journal Article

Heat, mass, and work exchange networks

Zhiyou CHEN, Jingtao WANG

Journal Article

A new regeneration approach to cation resins with aluminum salts: application of desalination by its

Zhigang LIU, Shaomin ZHU, Yansheng LI

Journal Article

Imprinted membranes for sustainable separation processes

Laura Donato, Enrico Drioli

Journal Article

TiO supported IrO for anode reversal tolerance in proton exchange membrane fuel cell

Journal Article

Control strategies for disinfection byproducts by ion exchange resin, nanofiltration and their sequential

Journal Article