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Enhanced Fenton-like process over Cu/L(+)-ascorbic acid co-doping mesoporous silica for toxicity reduction of emerging contaminants

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 4, doi: 10.1007/s11783-024-1804-7

Abstract:

● Cu-C-MSNs are developed via a co-doping step of Cu with L(+)-ascorbic acid.

Keywords： Cation-π structures     Polarization electric field     Fenton-like process     Contaminants cleavage    

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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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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: Scanning electron microscopy and X-ray diffraction reveal that the structures of the organogels from

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

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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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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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Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from and

Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 120-132 doi: 10.1007/s11705-018-1730-y

Abstract: In this work, we have synthesized two polymer-grafted cation exchangers: one via the grafting-from approachProtein adsorption on these two cation exchangers have been also investigated.

Keywords： polymer-grafted ionic exchanger     grafting technique     protein adsorption     atom transfer radical polymerization     γ-globulin    

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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 cationThe 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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Metal cation removal by P(VC-r-AA) copolymer ultrafiltration membranes

Nachuan Wang, Jun Wang, Peng Zhang, Wenbin Wang, Chuangchao Sun, Ling Xiao, Chen Chen, Bin Zhao, Qingran Kong, Baoku Zhu

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 262-272 doi: 10.1007/s11705-017-1682-7

Abstract: A series of amphiphilic copolymers containing poly(vinyl chloride-r-acrylic acid) (P(VC-r-AA) ) was synthesized and used to prepare membranes via a non-solvent induced phase separation method. The prepared membranes were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and water contact angle and zeta potential measurements. The copolymer P(VC-r-AA) chains did not dissolved in a coagulation bath, indicating that the AA segments were completely retained within the membrane. Enriching degree of AA segments in surface layer was 2 for copolymer membrane. In addition, the introduction of AA segments made the membrane electronegative and hydrophilic so that the membrane was sensitive to the solution pH. The fouling resistance, adsorption of Cu(II), Cr(III) and Ce(IV) ions and the desorption properties of the membranes were also determined. The copolymer membranes exhibited good antifouling performance with a fouling reversibility of 92%. The membranes also had good adsorption capacities for Cu(II), Cr(III) and Ce(IV) ions. The optimal pH for Cu(II) adsorption was 6 and the copolymer membrane has potential applications for low concentration Cu(II) removal.

Keywords： poly(vinyl chloride-r-acrylic acid)     negatively charged PVC membrane     anti-fouling     heavy metal adsorption     Cu(II) removal    

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Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 224-239 doi: 10.1007/s11709-012-0166-6

Abstract: Modern long-span space structures, developed during the 1970s and 1980s, are light and effective structuresThese structures include air-supported membrane structures, cable-membrane structures, cable truss structures, beam string structures, suspen-domes, cable domes, composite structures of cable dome and single-layersteel structures and so forth., modern flexible space structures and modern rigid-flexible combined space structures.

Keywords： modern long-span space structures     rigid space structures     flexible space structures     rigid-flexible combinedspace structures     application and development    

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Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 557-568 doi: 10.1007/s11709-018-0497-z

Abstract: This paper addresses practical sizing optimization of deployable and scissor-like structures from a newThese structures have been recently highly regarded for beauty, lightweight, determine behavior, properAt this time, there is a few studies done considering practical optimization of these structures.In foldable scissor-like structures, connections have a complex behavior.are not affordable because they need more material than steel structures and cause more environmental

Keywords： optimization     scissor-like structures     deployable structures     genetic algorithm     ABAQUS    

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

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 cation

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

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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 remediationHowever, owing to the limitations of membrane structures and materials, M-CEMs have a low perm-selectivitypositively-charged trimesic acid/polyethylenimine surface thin layer and a negatively charged commercial cationCEMs, 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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Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Frontiers of Chemical Science and Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11705-023-2375-z

Abstract: mixtures (denoted as mix-decalin), in order to clarify the effects of the cis-/trans-structuresThis work demonstrates the relationship between the cis/trans structures and the pyrolysis

Keywords： endothermic fuel     decalin     pyrolysis     heat sink     molecular structure    

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Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Frontiers of Structural and Civil Engineering   Pages 1117-1131 doi: 10.1007/s11709-023-0939-0

Abstract: Sheathed post-and-beam wooden structures are distinct from light-wood structures.coefficients were all greater than 2.5, which satisfied the deformation requirements of residential structuresBased on the test and FE analysis results, the shear strength of the post-and-beam wooden structures

Keywords： post-and-beam wooden structures with sheathed walls     low reversed cyclic loading     bearing capacity     stiffness    

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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: A numerical framework was proposed for the seismic analysis of underground structures in layered groundNumerical results show that SV-waves are more destructive to underground structures than P-waves, andthe responses of underground structures are significantly affected by the incident angles.

Keywords： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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Title Author Date Type Operation

Enhanced Fenton-like process over Cu/L(+)-ascorbic acid co-doping mesoporous silica for toxicity reduction of emerging contaminants

Journal Article

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

ZHOU Xiaopeng, SU Xueli, SUN Yan

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

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

Zhigang LIU, Shaomin ZHU, Yansheng LI

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

Fabrication of high-capacity cation-exchangers for protein adsorption: Comparison of grafting-from and

Ming Zhao, Run Liu, Jian Luo, Yan Sun, Qinghong Shi

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

Metal cation removal by P(VC-r-AA) copolymer ultrafiltration membranes

Nachuan Wang, Jun Wang, Peng Zhang, Wenbin Wang, Chuangchao Sun, Ling Xiao, Chen Chen, Bin Zhao, Qingran Kong, Baoku Zhu

Journal Article

Application and development of modern long-span space structures in China

Shilin DONG, Yang ZHAO, Dong XING

Journal Article

Practical optimization of deployable and scissor-like structures using a fast GA method

M. SALAR, M. R. GHASEMI, B. DIZANGIAN

Journal Article

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

Niu Yubiao,Xu Xiaoqing,Zhao Haiyang,Zhou Zhijun

Journal Article

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

Effect of / molecular structures on pyrolysis performance and heat sink of decalin isomers

Journal Article

Lateral shear performance of sheathed post-and-beam wooden structures with small panels

Journal Article

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffness

Journal Article