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Nanosized magnetite in low cost materials for remediation of water polluted with toxic metals, azo- and

María Fernanda HORST,Verónica LASSALLE,María Luján FERREIRA

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 746-769 doi: 10.1007/s11783-015-0814-x

Abstract: Nanosized magnetite has emerged as an adsorbent of pollutants in water remediation.

Keywords： nanomagnetite     water remediation     toxic metals     dyes     supported magnetite    

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Adsorption of phosphate on magnetite-enriched particles (MEP) separated from the mill scale

Muhammad Kashif Shahid, Yunjung Kim, Young-Gyun Choi

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 5, doi: 10.1007/s11783-019-1151-2

Abstract: In present study, the phosphate adsorption on novel magnetite-enriched particles (MEP) was comprehensivelyThe XRD and XRF analysis of MEP identified the dominant existence of crystalline magnetite.Furthermore, the morphological analysis of MEP confirmed the agglomerate porous morphology of magnetiteOxygen and iron, the main constituents of magnetite were acknowledged during the elemental analysis using

Keywords： Adsorption     Magnetite     Mill-scale     Phosphate     Wastewater treatment    

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Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1547-2

Abstract:

• DPAA sorption followed pseudo-secondary and intra-particle diffusion models.

Keywords： Diphenylarsinic acid (DPAA)     Sorption     Magnetite     Siderite     Sequential extraction     EXAFS    

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Development of a magnetite-gene complex for gene transfection

Jian XIN BM, Ze-Feng XIA MD, Kai-Xiong TAO MD, Kai-Lin CAI PhD, Gao-Xiong HAN MD, Xiao-Ming SHUAI MD, Ji-Liang WANG MD, Han-Song DU MD, Guo-Bin WANG PhD, Yan LUO MM,

Frontiers of Medicine 2010, Volume 4, Issue 2,   Pages 241-246 doi: 10.1007/s11684-010-0032-7

Abstract: The key to successful gene therapy is to find a suitable method and carrier for transfection to allow a gene to be transferred into a cell and integrated into the target gene. The aim of this study was to determine whether biomagnetic material could be combined with the nucleic acid for gene transfection. Dextran-coated iron oxide nanoparticles (DCIONPs) were prepared and mixed with the plasmid pGenesil-1 containing the test gene, which expresses enhanced green fluorescent protein (eGFP). PGenesil-1 empty vector was used as a control. The binding ability was assessed by electrophoresis of the DNA on agarose gels and quantification using BANDSCAN software. Using different gene carriers, Lipofectamine 2000, Sofast, and DCIONPs, the large intestine cancer (Lovo) cell line was transfected with or without a magnetic field. The expression of eGFP was observed by fluorescence microscopy, and the transfection efficiency was compared. The results showed there was a rapid increase in combining rate when the quality ratio of DCIONPs and pGenesil-1 ascended from 1∶1 to 5∶1. However, the combining rate increased less rapidly as the quality ratio continued ascending. The expression of eGFP showed that the early transfection rate could be improved by applying a magnetic field. In conclusion, the DCIONPs we synthesized are able to carry plasmid DNA and enhance the early transfection efficiency when using a magnetic field.

Keywords： nanoparticle     magnetite     gene therapy     magnetofection    

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Vibration analysis of a simply supported beam under moving mass based on moving finite element method

Zhuchao YE, Huaihai CHEN,

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 4,   Pages 397-400 doi: 10.1007/s11465-009-0044-7

Abstract: paper, a moving finite element (MFE) method is proposed to perform the dynamic analysis of a simply supportedshow that the inertial effects of the MM significantly affect the transverse responses of the simply supported

Keywords： simply supported beam     moving mass (MM)     transverse vibration     moving finite element (MFE)    

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A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 450-459 doi: 10.1007/s11705-020-1930-0

Abstract: In this research, an eco-friendly magnetic adsorbent based on Fe O /salicylic acid nanocomposite was fabricated using a facile one-pot co-precipitation method. The crystalline and morphological characterization of the prepared nanocomposite was performed by field emission scanning electron microscopy, X-ray diffraction, and Fourier transform infrared spectroscopy. The nanocomposite was employed as a magnetic solid-phase extraction agent for separation of Cd(II) ions from synthetic solutions. Some experimental factors affecting the extraction efficiency were investigated and optimized. Following elution with acetic acid (pH 3.5), the pre-concentrated analyte was quantified by flame atomic absorption spectrometry. In optimal conditions, a linear calibration graph was achieved in the concentration range of 0.2‒30 ng·mL with a determination coefficient ( ) of 0.9953. The detection limit, the enhancement factor, inter- and intra-day relative standard deviations (for six consecutive extractions at the concentration level of 10 ng·mL ) were 0.04 ng·mL , 100, 2.38% and 1.52%, respectively. To evaluate the accuracy of the method, a certified reference material (NIST SRM 1643e) was analyzed, and there was a good agreement between the certified and the measured values. It was successfully utilized to determine cadmium in industrial wastewater samples and the attained relative recovery values were between 96.8% and 103.2%.

Keywords： cadmium     magnetic solid-phase extraction     Fe3O4 nanoparticles     Fe3O4/salicylic acid nanocomposite     flame atomic absorption spectrometry    

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Polyethylene glycol-supported ionic liquid as a highly efficient catalyst for the synthesis of propylene

Rui YAO, Hua WANG, Jinyu HAN

Frontiers of Chemical Science and Engineering 2012, Volume 6, Issue 3,   Pages 239-245 doi: 10.1007/s11705-012-1297-y

Abstract: The supported ionic liquid, which has both acidic and basic components, proved to be an active catalyst

Keywords： ionic liquid     PEG-supported ionic liquid     carbon dioxide     propylene carbonate    

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Removal of decabromodiphenyl ether (BDE-209) by sepiolite-supported nanoscale zerovalent iron

Rongbing FU,Na MU,Xiaopin GUO,Zhen XU,Dongsu BI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 867-878 doi: 10.1007/s11783-015-0800-3

Abstract: BDE-209 was rapidly removed by the prepared sepiolite-supported nZVI with a reaction rate that was 5The removal efficiency of BDE-209 increased with increasing dosage of sepiolite-supported nZVI particlesTHF) as a cosolvent at certain volume fractions in water influenced the degradation rate of sepiolite-supportedDebromination pathways of BDE-209 with sepiolite-supported nZVI were proposed based on the identifiedAdsorption on sepiolite-supported nZVI particles also played a role in the removal of BDE-209.

Keywords： sepiolite-supported nanoscale zerovalent iron     decabromodiphenyl ether     debromination     adsorption     mechanism    

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Field testing of geosynthetic-reinforced and column-supported earth platforms constructed on soft soil

Qiangong CHENG,Jiujiang WU,Dongxue ZHANG,Fengping MA

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 124-139 doi: 10.1007/s11709-014-0255-9

Abstract: This paper is focused on the behavior of geosynthetic-reinforced and column-supported (GRCS) earth platforms

Keywords： geosynthetic-reinforced and column-supported (GRCS) earth platforms     soft soil     bearing behavior     settlement    

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Self-supported transition metal phosphide based electrodes as high-efficient water splitting cathodes

Yan Zhang, Jian Xiao, Qiying Lv, Shuai Wang

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 3,   Pages 494-508 doi: 10.1007/s11705-018-1732-9

Abstract: this review, we try to provide a comprehensive analysis of the design and fabrication of various self-supportedThe material structures together with catalytic performances of self-supported electrodes are presentedThe simple and one-step methods to fabricate self-supported TMP electrodes are also highlighted.Finally, the challenges and perspectives for self-supported TMP electrodes in water splitting application

Keywords： transition metal phosphide     self-supported electrode     electrocatalysis     hydrogen evolution reaction    

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Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1289-1300 doi: 10.1007/s11705-023-2299-7

Abstract: large surface area could promote the transport of electrons between NCM and Pd, thereby endowing NCM supportedThe NCM supported Pd catalyst was employed in the degradation of some representative dyes and the chemoselective

Keywords： biowaste chitin     nanofibrous     palladium     nano-catalyst     catalysis    

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Mayenite supported perovskite monoliths for catalytic combustion of methyl methacrylate

Zekai ZHANG, Zhijian KONG, Huayan LIU, Yinfei CHEN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 87-94 doi: 10.1007/s11705-014-1410-5

Abstract: To improve their thermal stability, La Sr MnO cordierite monoliths are washcoated with mayenite, which is a novel Al-based material with the crystal structure of 12MO·7Al O (M= Ca, Sr). The monoliths are characterized by means of nitrogen adsorption/desorption, scanning electron microscopy, and X-ray diffraction. Catalytic performances of the monoliths are tested for methyl methacrylate combustion. The results show that mayenite obviously improves both the physic-chemical properties and the catalytic performance of the monoliths. Because mayenite improves the dispersity of La Sr MnO and also prevents the interaction between La Sr MnO and cordierite or -Al O , both crystal structure and surface morphology of La Sr MnO phase can thereby be stable on the mayenite surface even at high temperature up to 1050 oC. Under the given reaction conditions, La Sr MnO monolith washcoated with 12SrO·7Al O shows the best catalytic activity for methyl methacrylate combustion among all the tested monoliths.

Keywords： mayenite     perovskite     catalytic combustion     methyl methacrylate     monolith    

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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: Herein, Ti4O7 supported IrOx is synthesized by utilizing the

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

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Pt–C interactions in carbon-supported Pt-based electrocatalysts

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1677-1697 doi: 10.1007/s11705-023-2300-5

Abstract: Carbon-supported Pt-based materials are highly promising electrocatalysts.This review summarizes recent progress made in the development of carbon-supported Pt-based catalystsFinally, the current challenges and future prospects in the development of carbon-supported Pt-based

Keywords： Pt–C interactions     Pt-based materials     carbon support     electrocatalysis    

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Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 415-421 doi: 10.1007/s11705-013-1360-3

Abstract: Two catalysts, alumina and manganese oxide supported on alumina, have been prepared by calcination and

Keywords： alumina     manganese oxide deposited on alumina     quinoxaline synthesis    

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Title Author Date Type Operation

Nanosized magnetite in low cost materials for remediation of water polluted with toxic metals, azo- and

María Fernanda HORST,Verónica LASSALLE,María Luján FERREIRA

Journal Article

Adsorption of phosphate on magnetite-enriched particles (MEP) separated from the mill scale

Muhammad Kashif Shahid, Yunjung Kim, Young-Gyun Choi

Journal Article

Sorption mechanisms of diphenylarsinic acid on natural magnetite and siderite: Evidence from sorption

Journal Article

Development of a magnetite-gene complex for gene transfection

Jian XIN BM, Ze-Feng XIA MD, Kai-Xiong TAO MD, Kai-Lin CAI PhD, Gao-Xiong HAN MD, Xiao-Ming SHUAI MD, Ji-Liang WANG MD, Han-Song DU MD, Guo-Bin WANG PhD, Yan LUO MM,

Journal Article

Vibration analysis of a simply supported beam under moving mass based on moving finite element method

Zhuchao YE, Huaihai CHEN,

Journal Article

A magnetic adsorbent based on salicylic acid-immobilized magnetite nano-particles for pre-concentration

Hossein Abdolmohammad-Zadeh, Arezu Salimi

Journal Article

Polyethylene glycol-supported ionic liquid as a highly efficient catalyst for the synthesis of propylene

Rui YAO, Hua WANG, Jinyu HAN

Journal Article

Removal of decabromodiphenyl ether (BDE-209) by sepiolite-supported nanoscale zerovalent iron

Rongbing FU,Na MU,Xiaopin GUO,Zhen XU,Dongsu BI

Journal Article

Field testing of geosynthetic-reinforced and column-supported earth platforms constructed on soft soil

Qiangong CHENG,Jiujiang WU,Dongxue ZHANG,Fengping MA

Journal Article

Self-supported transition metal phosphide based electrodes as high-efficient water splitting cathodes

Yan Zhang, Jian Xiao, Qiying Lv, Shuai Wang

Journal Article

Pd nano-catalyst supported on biowaste-derived porous nanofibrous carbon microspheres for efficient catalysis

Journal Article

Mayenite supported perovskite monoliths for catalytic combustion of methyl methacrylate

Zekai ZHANG, Zhijian KONG, Huayan LIU, Yinfei CHEN

Journal Article

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

Journal Article

Pt–C interactions in carbon-supported Pt-based electrocatalysts

Journal Article

Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines

Rekha M., H. Kathyayini, N. Nagaraju

Journal Article