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Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1723-z

Abstract:

● Au, Ag and Pd were recovered from WPCBs with high efficiencies.

Keywords： Thiosulfate     Printed circuit boards     Precious metals     Leaching     Hydrometallurgy    

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NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 1973-1985 doi: 10.1007/s11705-023-2364-2

Abstract: converting NO to NH3, achieving an NO conversion rate exceeding 80% and an NH3 selectivityenergy barrier for NH3 desorption, thereby resulting in improved NO conversion and enhanced selectivity

Keywords： NO hydrogenation     synthetic ammonia     10Fe-xCu/TiO2     high selectivity    

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CuAlCl

Yixiu WANG,Chao LI,Fanchao MENG,Shuling LV,Jintao GUO,Xiaoqin LIU,Chongqing WANG,Zhengfei MA

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 340-345 doi: 10.1007/s11705-014-1438-6

Abstract: The selectivity for CO over N improved from 4.64 to 31.5 at 298 K and 1 bar.

Keywords： metal organic framework     CO adsorbent     high stability     high selectivity     CuAlCl4    

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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: However, electrocatalysts for this reaction usually suffer from a poor product selectivity and a largeHere we report that tunable catalytic selectivity for hydrocarbon formation could be achieved on Cu nanomaterials

Keywords： electrochemical CO2 reduction     Cu oxide     nanostructure     selectivity     hydrocarbon formation    

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An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 950-962 doi: 10.1007/s11705-022-2162-2

Abstract: The Cu–Ce–Zr catalyst with 2 wt% Ce loading shows higher CO selectivity (SCO = 0.0%mml:mn> = 5.4%–15.6%) and CH3OH selectivityHence, the Cu–Ce–Zr catalyst with 8 wt% Ce loading favors CH3OH selectivity and CO2high-pressure in situ diffuse reflectance infrared Fourier transform spectroscopy shows

Keywords： CO2 hydrogenation     Cu–Ce–Zr     hydroxyls     CO/CH3OH selectivity    

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A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 3, doi: 10.1007/s11783-023-1633-0

Abstract:

● pz-UiO-66 was synthesized facilely by a solvothermal method.

Keywords： Pyrazine     Metal-organic frameworks     Copper removal     Strong acidity     High selectivity    

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Solar fuel from photo-thermal catalytic reactions with spectrum-selectivity: a review

Sanli TANG, Jie SUN, Hui HONG, Qibin LIU

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 437-451 doi: 10.1007/s11708-017-0509-z

Abstract: The review begins with the meaning of synergetic effects, and the mechanisms of spectrum-selectivityIn addition, these works are summarized and tabulated based on the operating conditions, spectrum-selectivityfinally presented concerning future development of photo-thermal catalytic reactions with spectrum-selectivity

Keywords： photo-thermal catalysis     spectrum-selectivity     solar fuel     full-spectrum    

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Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared by an electrodeposited method via tuning applied voltage

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: The dendritic nano-structured Cu catalysts obtained at high applied voltages exhibited an excellent efficiencyand selectivity toward the reduction of nitrobenzene to aniline.A high rate constant of 0.0251 min and 97.1% aniline selectivity were achieved.

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

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Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1801-1808 doi: 10.1007/s11705-023-2325-9

Abstract: Improving the aromatic selectivity in the alkane aromatization process is of great importance for itspractical utilization but challenge to make because the high H/C ratio of alkanes would lead to a seriousintroduced into the cyclohexane conversion process on the HZSM-5 zeolite, which can improve the aromatic selectivity), 450 °C, and 1.7 h−1, which is better than that without CO2 (aromatic selectivityThis study may open a green, economic, and promising way to improve the aromatic selectivity for alkane

Keywords： aromatics     carbon dioxide     aromatization     coupling reaction     ZSM-5 zeolite    

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Catalysis of semihydrogenation of acetylene to ethylene: current trends, challenges, and outlook

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 7,   Pages 1031-1059 doi: 10.1007/s11705-021-2113-3

Abstract: The specific role(s) that each process parameter plays to achieve high acetylene conversion and ethyleneselectivity is discussed.An increase in the reaction temperature affords high acetylene conversion and ethylene selectivity to

Keywords： selectivity     hydrogenation     acetylene     ethylene     palladium    

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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: 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 concentrationWithin 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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Nanofiltration for drinking water treatment: a review

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5,   Pages 681-698 doi: 10.1007/s11705-021-2103-5

Abstract: Outlook and perspectives on membrane fouling control, chlorine resistance, integrity, and selectivityare also discussed to provide potential insights for future development of high-efficiency NF membranes

Keywords： nanofiltration     drinking water     disinfection byproducts     micropollutants     selectivity    

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Engineering a High-Selectivity PVDF Hollow-Fiber Membrane for Cesium Removal Article

Shiyuan Ding, Lilan Zhang, Yang Li, Li´an Hou

Engineering 2019, Volume 5, Issue 5,   Pages 865-871 doi: 10.1016/j.eng.2019.07.021

Abstract: The composite membrane showed a high Cs rejection rate and membrane flux at the three layers of CuFCThe Cs selectivity performance was verified by an efficient Cs rejection rate (76.25% and 88.67% in 8

Keywords： Cesium removal     Composite membrane     Copper ferrocyanide     Polyvinylidene fluoride    

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Adsorption selectivity of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents

LIU Fuqiang, CHEN Jinlong, LI Aimin, XIA Mingfang, FEI Zhenghao

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 73-78 doi: 10.1007/s11783-007-0014-4

Abstract: experiments involving different solutes and sorbents were carried out to investigate the adsorption selectivityIn conclusion, the adsorption selectivity of salicylic acid onto NDA-100 was obviously larger than that

Keywords： 5-sulfosalicylic     bottle-point     hypercrosslinked polymeric     satisfactory separation     NDA-100    

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Selective oxidation of o -nitrotoluene to o -nitrobenzaldehyde with metalloporphyrins as biomimetic catalysts

Xinling WANG, Yuanbin SHE,

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 4,   Pages 453-456 doi: 10.1007/s11705-009-0167-8

Abstract: parameters of NaOH concentration, reaction temperature, reaction time and oxygen pressure all affect the selectivityFurther, 82.0% selectivity of -nitrobenzaldehyde was achieved under the optimum conditions: 1.0×

Keywords： -nitrobenzaldehyde     temperature     biomimetic     selectivity     pressure    

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Title Author Date Type Operation

Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit

Journal Article

NO hydrogenation to NH over FeCu/TiO catalyst with improved activity

Journal Article

CuAlCl

Yixiu WANG,Chao LI,Fanchao MENG,Shuling LV,Jintao GUO,Xiaoqin LIU,Chongqing WANG,Zhengfei MA

Journal Article

Tuning the catalytic selectivity in electrochemical CO

Jiafang XIE,Yuxi HUANG,Hanqing YU

Journal Article

An investigation of the CHOH and CO selectivity of CO hydrogenation over Cu–Ce–Zr catalysts

Journal Article

A pyrazine based metal-organic framework for selective removal of copper from strongly acidic solutions

Journal Article

Solar fuel from photo-thermal catalytic reactions with spectrum-selectivity: a review

Sanli TANG, Jie SUN, Hui HONG, Qibin LIU

Journal Article

Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst prepared by an electrodeposited method via tuning applied voltage

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

Journal Article

Enhancing the aromatic selectivity of cyclohexane aromatization by CO2 coupling

Journal Article

Catalysis of semihydrogenation of acetylene to ethylene: current trends, challenges, and outlook

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

Nanofiltration for drinking water treatment: a review

Journal Article

Engineering a High-Selectivity PVDF Hollow-Fiber Membrane for Cesium Removal

Shiyuan Ding, Lilan Zhang, Yang Li, Li´an Hou

Journal Article

Adsorption selectivity of salicylic acid and 5-sulfosalicylic acid onto hypercrosslinked polymeric adsorbents

LIU Fuqiang, CHEN Jinlong, LI Aimin, XIA Mingfang, FEI Zhenghao

Journal Article

Selective oxidation of o -nitrotoluene to o -nitrobenzaldehyde with metalloporphyrins as biomimetic catalysts

Xinling WANG, Yuanbin SHE,

Journal Article