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electrolysis cells with biocathodes and driven by microbial fuel cells for simultaneous enhanced Co(II) and Cu(II) removal

Jingya SHEN,Yuliang SUN,Liping HUANG,Jinhui YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1084-1095 doi: 10.1007/s11783-015-0805-y

Abstract: Cobalt and copper recovery from aqueous Co(II) and Cu(II) is one critical step for cobalt and copperPrevious tests have primarily examined Cu(II) and Co(II) removal in microbial electrolysis cells (MECsHowever, Cu(II) and Co(II) removal rates were still slow.removal rates of Cu(II) (115.7 mg?and efficient Cu(II) and Co(II) wastewaters treatment without any external energy consumption.

Keywords： biocathode     microbial electrolysis cell     microbial fuel cell     Cu(II) removal     Co(II) removal    

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Approaching the binding between Cu(II) and aerobic granules by a modified titration and µ-XRF

Hongwei LUO,Longfei WANG,Zhonghua TONG,Hanqing YU,Guoping SHENG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 362-367 doi: 10.1007/s11783-015-0803-0

Abstract: study, a modified titration method with a dynamic mode was developed to investigate the binding of Cu(II), a typical heavy metal, onto aerobic granules.results demonstrated that the distribution of metals on the granular surface was heterogeneous, and CuIon exchange and complexing were the main mechanisms for the biosorption of Cu(II) by aerobic granulesThese results would be beneficial for better understanding of Cu(II) migration and its fate in wastewater

Keywords： aerobic granules     Cu(II)     modified titration     µ-XRF analysis    

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Removal of Cu(II) and Fe(III) from aqueous solutions by dead sulfate reducing bacteria

Hong’en QUAN, He BAI, Yang HAN, Yong KANG, Jiao SUN

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 2,   Pages 177-184 doi: 10.1007/s11705-013-1324-7

Abstract: The biosorption properties of dead sulfate reducing bacteria (SRB) for the removal of Cu(II) and Fe(III(II) and Fe(III) by the SRB were investigated.For both Cu(II) and Fe(III), an increase in the SRB biosorbent concentration resulted in an increaseg at pH 4.5 for Cu(II) and 88.29 mg?g at pH 3.5 for Fe(III).For both the single metal and binary metal systems, the biosorption of Cu(II) and Fe(III) onto a SRB

Keywords： sulfate reducing bacteria     biosorption     Cu(II)     Fe(III)    

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Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 4,   Pages 493-497 doi: 10.1007/s11783-012-0416-9

Abstract: (cyanobacterium) with Cu(II) was investigated using fluorescence spectroscopy.Fluorescence of peaks A, B, and C could be quenched by Cu(II).(II) binding capacity than the protein-like substances.The binding site number, , in EPS-Cu(II) complexes for peaks A, B, and C was less than 1.suggests the negative cooperativity between multiple binding sites and the presence of more than one Cu

Keywords： biosorption     conditional binding constant     extracellular polymeric substances (EPS)     fluorescence quenching    

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Optimizing synthesis conditions of nanoscale zero-valent iron (nZVI) through aqueous reactivity assessment

Yanlai HAN,Michael D. Y. YANG,Weixian ZHANG,Weile YAN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 813-822 doi: 10.1007/s11783-015-0784-z

Abstract: properties of the resultant nanoparticles were assayed independently using two model aqueous contaminants, Cu(II) and nitrate.The two probing reactions (i.e., Cu(II) and nitrate reduction) are able to generate consistent and quantitativeAdditional insights including the structural and chemical makeup of nZVI can be garnered from Cu(II)reduction assessments.

Keywords： iron nanoparticles     nanoscale iron particles (nZVI)     synthesis     characterization     Cu(II) reduction     nitratereduction    

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Selective removal of Cu(II) from contaminated water using molecularly imprinted polymer

QI Jingyao, LI Xin, LI Ying, ZHU Jianhua, QIANG Liangsheng

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 109-114 doi: 10.1007/s11705-008-0019-y

Abstract: imprinted polymer (MIP) was prepared by noncovalent imprinting technique for the selective removal of CuIn the preparation of imprinted polymer, Cu was used as the template, oleic acid as the functional monomerIn general, the removal efficiency of Cu increased rapidly with pH from 2 to 7 and decreased at a pHThe removal efficiency of Cu increased with temperature from 25°C to 50°C.adsorption studies showed that the coexisting cations have no obvious influence on the adsorption of Cu

Keywords： synthetic     divinylbenzene     noncovalent imprinting     imprinting technique     temperature    

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Removal of Cu(II) ions from aqueous solution by activated carbon impregnated with humic acid

LIU Hanchao,FENG Suping,ZHANG Nannan,DU Xiaolin,LIU Yongli

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 329-336 doi: 10.1007/s11783-013-0553-9

Abstract: Humic acid (HA) was impregnated onto powdered activated carbon to improve its Cu(II) adsorption capabilityThe optimum pH value for Cu(II) removal was 6.and FTIR measurements to explain the mechanism behind the humic-acid modification that enhanced the Cu(II) adsorption capacity of activated carbon.

Keywords： adsorption     humic acid     activated carbon     heavy metal ions    

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Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 897-904 doi: 10.1007/s11783-015-0782-1

Abstract: Selective reduction of nitrobenzene to aniline is beneficial to further efficient and cost-effectiveElectrochemical reduction is a promising method and Cu-based catalysts have been found to be an efficientand selectivity toward the reduction of nitrobenzene to aniline.nitrobenzene to aniline using the Cu/Ti electrode were investigated.The fabricated nano-structured Cu catalysts also exhibited good stability.

Keywords： nitrobenzene     nano-structured Cu     electro-reduction     voltage-dependent electrodeposition     high selectivity    

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Highly active and durable Pd-Cu catalysts for oxygen reduction in alkaline exchange membrane fuel cells

Xiong PENG, Travis J. OMASTA, Justin M. ROLLER, William E. MUSTAIN

Frontiers in Energy 2017, Volume 11, Issue 3,   Pages 299-309 doi: 10.1007/s11708-017-0495-1

Abstract: A Pd-Cu catalyst, with primary B2-type phase, supported by VulcanXC-7R carbon was synthesized via a solvothermalDuring the RDE testing, the half-wave potential of the Pd-Cu/Vulcan catalyst was 50 mV higher comparedto that of commercial Pt/C catalyst for the oxygen reduction reaction (ORR) in alkaline media.The Pd-Cu/Vulcan exhibited a specific activity of 1.27 mA/cm and a mass activity of 0.59 A/mg at 0.9The Pd-Cu/Vulcan catalyst also showed higher alkaline exchange membrane fuel cell (AEMFC) performance

Keywords： alkaline exchange membrane (AEM)     fuel cell     Pd-Cu     oxygen reduction     high performance     water    

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

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

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

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Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 861-866 doi: 10.1007/s11783-014-0742-1

Abstract: By tuning the electrochemical parameters, either Cu oxide nanowires or nanoneedles were fabricated andthen electrochemically reduced to the corresponding Cu nanomaterials.The Cu nanowires preferred the formation of C H , while the Cu nanoneedles favored the production ofOur work provides a facile synthetic strategy for preparing Cu-based nanomaterials to achieve selectiveCO reduction.

Keywords： electrochemical CO2 reduction     Cu oxide     nanostructure     selectivity     hydrocarbon formation    

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Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1322-1

Abstract: Abstract • K+ hinder the structural degradation of Cu/SAPO-34 under humid condition<100°C. • K+ on Cuand inferior SCR activity at high temperature. • Fe/Beta was used to compensate the low activity of CuK ions were introduced onto Cu/SAPO-34 catalysts via the ion-exchange process in order to improve theircatalysts upon hydrothermal aging were probed in order to investigate their effects on selective catalytic reductionFor the fresh Cu/SAPO-34 catalysts, K ions had little influence on the chabazite framework but effected

Keywords： Selective catalytic reduction     Cu/SAPO-34 catalyst     Ion-exchanged K     Low-temperature hydrothermal stability    

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Transport and selectivity of indium through polymer inclusion membrane in hydrochloric acid medium

Xiaorong Meng, Conghui Wang, Pan Zhou, Xiaoqiang Xin, Lei Wang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 6, doi: 10.1007/s11783-017-0950-6

Abstract: And the conditions for the selective separation of In(III) and Cu(II) were optimized.The transport flux of In(III) and Cu(II) was decreased by excessive acidity of feed phase and high concentrationThe selectivity separation coefficient of In(III)/Cu(II) was up to 34.33 when the original concentrationof both In(III) and Cu(II) was 80 mg·L as well as the pH of the feed phase and the concentration ofWithin the range of pH= 1–3, the separation selectivity of In(III)/Cu(II) reached the peak in the case

Keywords： Polymer inclusion membrane     Selective transport     D2EHPA     In(III)     Cu(II)    

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Adsorption performance and physicochemical mechanism of MnO

Xiaoyan Deng, Luxing Wang, Qihui Xiu, Ying Wang, Hong Han, Dongmei Dai, Yongji Xu, Hongtao Gao, Xien Liu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 538-551 doi: 10.1007/s11705-020-1958-1

Abstract: prepared by combining MnO , polyethylenimine and tannic acid, and exhibited efficient performance for Cu(II) and Cr(VI) removal from aqueous solution.The maximum adsorption capacities of MnPT for Cu(II) and Cr(VI) were 121.5 and 790.2 mg·g , respectivelycomplexation formation model was used to elucidate the physicochemical interplay in the process of Cu(II) and Cr(VI) co-adsorption on MnPT.

Keywords： MnO2-polyethylenimine-tannic acid composite     surface complexation formation model     Cu(II)     Cr    

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A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 963-972 doi: 10.1007/s11705-021-2081-7

Abstract: In this paper, we proposed a microextraction approach for the extraction and separation of Mn(II) andCo(II) from sulfate solution simulating leachate of spent lithium-ion battery cathode materials usingWith the help of microextractor, 95% of Mn(II) was extracted with a single theoretical stage at a chosen

Keywords： extraction equilibrium     mass transfer coefficient     microextraction     multicomponent extraction     di-(2-ethylhexyl)phosphoric acid    

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Title Author Date Type Operation

electrolysis cells with biocathodes and driven by microbial fuel cells for simultaneous enhanced Co(II) and Cu(II) removal

Jingya SHEN,Yuliang SUN,Liping HUANG,Jinhui YANG

Journal Article

Approaching the binding between Cu(II) and aerobic granules by a modified titration and µ-XRF

Hongwei LUO,Longfei WANG,Zhonghua TONG,Hanqing YU,Guoping SHENG

Journal Article

Removal of Cu(II) and Fe(III) from aqueous solutions by dead sulfate reducing bacteria

Hong’en QUAN, He BAI, Yang HAN, Yong KANG, Jiao SUN

Journal Article

Biosorption of Cu(II) to extracellular polymeric substances (EPS) from

Xiangliang PAN, Jing LIU, Wenjuan SONG, Daoyong ZHANG

Journal Article

Optimizing synthesis conditions of nanoscale zero-valent iron (nZVI) through aqueous reactivity assessment

Yanlai HAN,Michael D. Y. YANG,Weixian ZHANG,Weile YAN

Journal Article

Selective removal of Cu(II) from contaminated water using molecularly imprinted polymer

QI Jingyao, LI Xin, LI Ying, ZHU Jianhua, QIANG Liangsheng

Journal Article

Removal of Cu(II) ions from aqueous solution by activated carbon impregnated with humic acid

LIU Hanchao,FENG Suping,ZHANG Nannan,DU Xiaolin,LIU Yongli

Journal Article

Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared

Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU

Journal Article

Highly active and durable Pd-Cu catalysts for oxygen reduction in alkaline exchange membrane fuel cells

Xiong PENG, Travis J. OMASTA, Justin M. ROLLER, William E. MUSTAIN

Journal Article

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

Journal Article

Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Journal Article

Promotional effect of ion-exchanged K on the low-temperature hydrothermal stability of Cu/SAPO-34 and

Chen Wang, Jun Wang, Jianqiang Wang, Meiqing Shen

Journal Article

Transport and selectivity of indium through polymer inclusion membrane in hydrochloric acid medium

Xiaorong Meng, Conghui Wang, Pan Zhou, Xiaoqiang Xin, Lei Wang

Journal Article

Adsorption performance and physicochemical mechanism of MnO

Xiaoyan Deng, Luxing Wang, Qihui Xiu, Ying Wang, Hong Han, Dongmei Dai, Yongji Xu, Hongtao Gao, Xien Liu

Journal Article

A microextraction approach for rapid extraction and separation of Mn(II) and Co(II) using saponified

Journal Article