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Dive into the research topics where Mingzhu Yang is active.

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Featured researches published by Mingzhu Yang.


Journal of Colloid and Interface Science | 2012

High-capacity adsorption of hexavalent chromium from aqueous solution using magnetic microspheres by surface dendrimer graft modification

Qiang Wang; Yueping Guan; Xiang Liu; Xiufeng Ren; Mingzhu Yang

The magnetic poly-(methyl acrylate-divinyl benzene) (MA-DVB) microspheres with micron size were synthesized by modified suspension polymerization method. Through stepwise reaction with methyl acrylate (MA) and ethylenediamine (EDA), the magnetic poly-(MA-DVB) microspheres with surface dendrimer containing amino groups were obtained. The above mentioned magnetic microspheres were applied for the adsorption of hexavalent chromium from aqueous solution. The effects of solution pH value, adsorption temperature, and adsorption and desorption of Cr(VI) were studied. The results showed that the optimum pH value for Cr(VI) adsorption was found at pH=3, and the adsorption capacity increased with the increase in adsorption temperature. The adsorption equilibrium of Cr(VI) was obtained in about 12 min and more than 98% of adsorbed Cr(VI) were desorbed from the magnetic microspheres in about 30 min using Na(2)SO(4) solution. By fitting the experimental data to Langmuir equation, the maximum capacity for Cr(VI) of magnetic poly-(MA-DVB) microspheres was estimated at 231.8 mg/g.


Chinese Journal of Chemical Engineering | 2012

Micron-sized Magnetic Polymer Microspheres for Adsorption and Separation of Cr(VI) from Aqueous Solution *

Qiang Wang; Yueping Guan; Xiang Liu; Mingzhu Yang; Xiufeng Ren

Abstract The magnetic poly-(methacrylate-divinyl benzene) microspheres with micron size were synthesized by modified suspension polymerization method. Adsorption of Cr(VI) from aqueous solution by magnetic poly-(MA-DVB) microspheres with surface amination was investigated. The adsorption processes were carried out under diversified conditions of pH value, adsorption time and temperature to evaluate the performance of the magnetic microspheres. The optimum pH value for Cr(VI) adsorption was found as 3. The adsorption capacity increased with adsorption time and attained an optimum at 60 min. The adsorption processes for magnetic microspheres was endothermic reaction, and the adsorption capacity increased with increasing temperature.


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2014

Synthesis of polyethylenimine modified Fe3O4 nanoparticles with immobilized Cu2+ for highly efficient proteins adsorption

Tingting Xia; Yueping Guan; Mingzhu Yang; Wubin Xiong; Ning Wang; Shen Zhao; Chen Guo


Journal of Colloid and Interface Science | 2013

Peroxidase-like activity of amino-functionalized magnetic nanoparticles and their applications in immunoassay.

Mingzhu Yang; Yueping Guan; Yu Yang; Tingting Xia; Wubin Xiong; Ning Wang; Chen Guo


Separation and Purification Technology | 2011

Rapid extraction of low concentration heavy metal ions by magnetic fluids in high gradient magnetic separator

Qiang Wang; Yueping Guan; Xiufeng Ren; Guoji Cha; Mingzhu Yang


Journal of Colloid and Interface Science | 2012

Removal of low concentration Cr(VI) from aqueous solution by magnetic-fluids fixed bed using the high gradient magnetic separation.

Qiang Wang; Yueping Guan; Xiufeng Ren; Mingzhu Yang; Xiang Liu


Chemical Engineering Journal | 2012

Application of magnetic extractant for the removal of hexavalent chromium from aqueous solution in high gradient magnetic separator

Qiang Wang; Yueping Guan; Xiufeng Ren; Mingzhu Yang; Xiang Liu


Journal of Magnetism and Magnetic Materials | 2012

Application of superparamagnetic microspheres for affinity adsorption and purification of glutathione

Qiang Wang; Yueping Guan; Mingzhu Yang


Journal of Applied Polymer Science | 2012

The surface modification of magnetic poly(methyl acrylate) microspheres with dendron and application in Au(III) adsorption

Xiang Liu; Yueping Guan; Qiang Wang; Xiufeng Ren; Mingzhu Yang


Materials Letters | 2014

A sensitive and rapid immunoassay for mycoplasma pneumonia based on Fe3O4 nanoparticles

Mingzhu Yang; Yueping Guan; Yu Yang; Tingting Xia; Wubin Xiong; Chen Guo

Collaboration


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Yueping Guan

University of Science and Technology Beijing

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Qiang Wang

University of Science and Technology Beijing

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Xiufeng Ren

University of Science and Technology Beijing

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Chen Guo

Chinese Academy of Sciences

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Tingting Xia

University of Science and Technology Beijing

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Wubin Xiong

University of Science and Technology Beijing

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Xiang Liu

University of Science and Technology Beijing

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Ning Wang

Chinese Academy of Sciences

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Shen Zhao

University of Science and Technology Beijing

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Guoji Cha

University of Science and Technology Beijing

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