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Preconcentration of trace elements by adsorption onto a niobium wire for electrothermal atomization atomic

Satoshi KANECO, Hiroaki KITANAGA, Hideyuki KATSUMATA, Tohru SUZUKI

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 4,   Pages 432-435 doi: 10.1007/s11705-012-1219-z

Abstract: In the present work, a new preconcentration method of trace elements by adsorption onto a niobium wire

Keywords： preconcentration     adsorption onto niobium wire     electrothermal atomization atomic absorption spectrometry    

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Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1579-7

Abstract:

● Adsorption of environmental deoxyribonucleic acid on biochar was

Keywords： Environmental deoxyribonucleic acid     Antibiotic resistance genes     Biochar     Adsorption thermodynamics    

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Adsorption property of direct fast black onto acid-thermal modified sepiolite and optimization of adsorption

Chengyuan SU, Weiguang LI, Yong WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 503-511 doi: 10.1007/s11783-012-0477-9

Abstract: The adsorption of direct fast black onto acid-thermal modified sepiolite was investigated.Batch adsorption experiments were performed to evaluate the influences of experimental parameters suchas initial dye concentration, initial solution pH and adsorbent dosage on the adsorption process.three-level Box-Behnken response surface methodology (RSM) was utilized for modeling and optimization of the adsorptionconditions for direct fast black onto the acid-thermal modified sepiolite.

Keywords： direct fast black     acid-thermal modified sepiolite     adsorption     response surface methodology    

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Adsorption characteristics of ciprofloxacin onto g-MoS2<

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-019-1218-0

Abstract: The coated g-MoS2 greatly increased the adsorption ability of biochar.The adsorption mechanisms of CIP on g-MoS2-BC were proposed.As a result, the g-MoS2-BC composites showed faster adsorption rate and greater adsorption capacity forgreater CIP adsorption capacity than the original biochar.In addition, the adsorption of CIP onto g-MoS2-BC composites also exhibited strong dependence on the

Keywords： Adsorption     Ciprofloxacin     g-MoS2 nanosheets     Biochar     Soil remediation    

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Comparing the adsorption behaviors of Cd, Cu and Pb from water onto Fe-Mn binary oxide, MnO

Wei XU,Huachun LAN,Hongjie WANG,Hongming LIU,Jiuhui QU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 385-393 doi: 10.1007/s11783-014-0648-y

Abstract: The adsorption potential of FMBO, FeOOH, MnO for the removal of Cd , Cu and Pb in aqueous systemsThe adsorption behaviors of the three metal ions on the three adsorbents were all significantly affectedThe Langmuir and Freundlich adsorption models were used to describe the adsorption equilibrium of thethree metal ions onto the three adsorbents.that adsorption of metal ions occurred on the three metal oxides adsorbents limited to the formation

Keywords： heavy metals     Fe-Mn binary oxide     manganese dioxide     ferric hydroxide     adsorption    

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A ternary mechanism for the facilitated transfer of metal ions onto metal–organic frameworks: implications

Frontiers of Chemical Science and Engineering   Pages 1632-1642 doi: 10.1007/s11705-022-2187-6

Abstract: Although metal–organic frameworks offer a new platform for developing versatile sorption materials, yet coordinating the functionality, structure and component of these materials remains a great challenge. It depends on a comprehensive knowledge of a “real sorption mechanism”. Herein, a ternary mechanism for U(VI) uptake in metal–organic frameworks was reported. Analogous MIL-100s (Al, Fe, Cr) were prepared and studied for their ability to sequestrate U(VI) from aqueous solutions. As a result, MIL-100(Al) performed the best among the tested materials, and MIL-100(Cr) performed the worst. The nuclear magnetic resonance technique combined with energy-dispersive X-ray spectroscopy and zeta potential measurement reveal that U(VI) uptake in the three metal–organic frameworks involves different mechanisms. Specifically, hydrated uranyl ions form outer-sphere complexes in the surface of MIL-100s (Al, Fe) by exchanging with hydrogen ions of terminal hydroxyl groups (Al-OH2, Fe-OH2), and/or, hydrated uranyl ions are bound directly to Al(III) center in MIL-100(Al) through a strong inner-sphere coordination. For MIL-100(Cr), however, the U(VI) uptake is attributed to electrostatic attraction. Besides, the sorption mechanism is also pH and ionic strength dependent. The present study suggests that changing metal center of metal–organic frameworks and sorption conditions alters sorption mechanism, which helps to construct effective metal–organic frameworks-based sorbents for water purification.

Keywords： U(VI)     metal–organic frameworks     adsorption mechanism     metal node    

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Effect of co-existing organic compounds on adsorption of perfluorinated compounds onto carbon nanotubes

Shubo DENG,Yue BEI,Xinyu LU,Ziwen DU,Bin WANG,Yujue WANG,Jun HUANG,Gang YU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 784-792 doi: 10.1007/s11783-015-0790-1

Abstract: Co-existing organic compounds may affect the adsorption of perfluorinated compounds (PFCs) and carbonAdsorption of perfluorooctane sulfonate (PFOS), perfluorooctane acid (PFOA), perfluorobutane sulfonateThe effect of co-existing organic compounds on PFOS adsorption followed the decreasing order of humicenergy and effective adsorption sites on the three MWCNTs decreased, resulting in the decrease of PFOSadsorption.

Keywords： perfluorinated compounds     carbon nanotubes     competitive adsorption     humic acid     perfluorooctane sulfonate    

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Effects of phosphorus concentration on Cr(VI) sorption onto phosphorus-rich sludge biochar

DING Wenchuan,PENG Wenlong,ZENG Xiaolan,TIAN Xiumei

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 379-385 doi: 10.1007/s11783-013-0606-0

Abstract: To investigate effects of phosphorus content on Cr(VI) sorption onto phosphorus-rich biochar, sewageThe adsorption kinetics of phosphorus-rich biochar could be described by the pseudo-second-order modelThen, a portion of Cr(III) in form of various phosphate precipitates was bound onto biochar surface and

Keywords： phosphorus     biochar     sewage sludge     hexavalent chromium     adsorption    

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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: column-feeding experiments involving different solutes and sorbents were carried out to investigate the adsorptionTheir adsorption isotherms onto such hypercrosslinked polymeric adsorbents as NDA-100 and NDA-99 couldThe adsorption towards NDA-100 mainly depended on the π-π interaction, while that towards NDA-99 wasIn conclusion, the adsorption selectivity of salicylic acid onto NDA-100 was obviously larger than thatonto NDA-99 with the existence of 5-sulfosalicylic acid in the adsorptive environment.

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

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Evaluation of global niobium flow modeling and its market forecasting

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 286-293 doi: 10.1007/s11708-022-0823-y

Abstract: Niobium (Nb) is considered a unique earth metal as it is related to many emerging technologies.

Keywords： niobium (Nb)     sustainability     substance flow analysis     recycling     industrial ecology    

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Elevated temperature creep model of parallel wire strands

Frontiers of Structural and Civil Engineering   Pages 1060-1071 doi: 10.1007/s11709-023-0981-y

Abstract: Parallel wire strands (PWSs), which are widely used in prestressed steel structures, are typically in

Keywords： parallel wire strands     experimental study     elevated temperature creep model    

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Progress of Tantalum & Niobium Industry in China

He Jilin

Strategic Study of CAE 2003, Volume 5, Issue 5,   Pages 40-46

Abstract:

This article introduces the development of tantalum & niobium industry in China and in the world, especially reviews the metallurgical and working technology development of tantalum & niobium inInview of the development condition and economic status of Chinese tantalum & niobium industry in

Keywords： tantalum & niobium industry     technology     continuative development     market    

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Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Frontiers of Chemical Science and Engineering   Pages 1672-1680 doi: 10.1007/s11705-022-2205-8

Abstract: Droplet impacting on the stainless steel wire mesh is very common in chemical devices, like a rotatingSurface wettability of wire mesh significantly affects the liquid flow pattern and liquid dispersionThe dynamic behavior of liquid film on the surface of wire mesh can be divided into the following threeCompared to the hydrophilic wire mesh, the final wetting area of hydrophobic wire mesh is zero in mostof hydrophobic wire mesh is 41.76–237.37 μm.

Keywords： stainless steel wire mesh     computational fluid dynamics     surface wettability     liquid film     impacting    

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Grafting of PEG400 onto the surface of LLDPE/SMA film

CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 128-131 doi: 10.1007/s11705-007-0024-6

Abstract: Results show that PEG400 can be grafted onto the surface of the films via esterification with SMA.The immersion of PEG promotes the enrichment of SMA onto the surface of the films.The water contact angle data show that grafting of PEG400 onto PE can greatly improve the hydrophilicity

Keywords： hydrophilicity     temperature     effective     immersion     reflection accessory    

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Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 4,   Pages 503-509 doi: 10.1007/s11709-011-0132-8

Abstract: This paper experimentally investigated wire breakage detection in a steel cable by acoustic emissionthe attenuation laws of waveform amplitudes were discussed based on stress wave propagation in the wire, which was generated by kNocking and wire breakage.Compared with the other source, the wire breakage source contained a much higher energy, and thus, thewire breakage signal can be distinguished from the other source by comparing the non-attenuation energy

Keywords： acoustic emission (AE)     waveform     wire breakage     attenuation factor     wave velocity    

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Title Author Date Type Operation

Preconcentration of trace elements by adsorption onto a niobium wire for electrothermal atomization atomic

Satoshi KANECO, Hiroaki KITANAGA, Hideyuki KATSUMATA, Tohru SUZUKI

Journal Article

Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution

Journal Article

Adsorption property of direct fast black onto acid-thermal modified sepiolite and optimization of adsorption

Chengyuan SU, Weiguang LI, Yong WANG

Journal Article

Adsorption characteristics of ciprofloxacin onto g-MoS2<

Zhenyu Yang, Rong Xing, Wenjun Zhou, Lizhong Zhu

Journal Article

Comparing the adsorption behaviors of Cd, Cu and Pb from water onto Fe-Mn binary oxide, MnO

Wei XU,Huachun LAN,Hongjie WANG,Hongming LIU,Jiuhui QU

Journal Article

A ternary mechanism for the facilitated transfer of metal ions onto metal–organic frameworks: implications

Journal Article

Effect of co-existing organic compounds on adsorption of perfluorinated compounds onto carbon nanotubes

Shubo DENG,Yue BEI,Xinyu LU,Ziwen DU,Bin WANG,Yujue WANG,Jun HUANG,Gang YU

Journal Article

Effects of phosphorus concentration on Cr(VI) sorption onto phosphorus-rich sludge biochar

DING Wenchuan,PENG Wenlong,ZENG Xiaolan,TIAN Xiumei

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

Evaluation of global niobium flow modeling and its market forecasting

Journal Article

Elevated temperature creep model of parallel wire strands

Journal Article

Progress of Tantalum & Niobium Industry in China

He Jilin

Journal Article

Numerical studies of dynamic behavior of liquid film on single-layer wire mesh with different wettabilities

Journal Article

Grafting of PEG400 onto the surface of LLDPE/SMA film

CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei

Journal Article

Experimental study on wire breakage detection by acoustic emission

Limin SUN, Ji QIAN

Journal Article