Hydrothermal synthesis of magnetic carbon microspheres for effective adsorption of Cd(II) in water

2013 ◽  
Vol 89 (7) ◽  
pp. 1051-1059 ◽  
Author(s):  
Xuan Zhou ◽  
Shi-Jie You ◽  
Xiu-Heng Wang ◽  
Yang Gan ◽  
Yi-Jian Zhong ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Carbon Microspheres ◽  
Magnetic Carbon

Orientation growth modulated magnetic-carbon microspheres toward broadband electromagnetic wave absorption

Carbon ◽  
2021 ◽  
Vol 172 ◽  
pp. 516-528
Author(s):  
Lei Wang ◽  
Xuefeng Yu ◽  
Mengqiu Huang ◽  
Wenbin You ◽  
Qingwen Zeng ◽  
...  
Keyword(s):  
Electromagnetic Wave ◽  
Carbon Microspheres ◽  
Electromagnetic Wave Absorption ◽  
Wave Absorption ◽  
Magnetic Carbon ◽  
Orientation Growth

Nanofurry magnetic carbon microspheres for separation processes and catalysis: synthesis, phase composition, and properties

2015 ◽  
Vol 50 (22) ◽  
pp. 7353-7363 ◽  
Author(s):  
Tibor Pasinszki ◽  
Melinda Krebsz ◽  
László Kótai ◽  
István E. Sajó ◽  
Zoltán Homonnay ◽  
...  
Keyword(s):  
Phase Composition ◽  
Carbon Microspheres ◽  
Separation Processes ◽  
Magnetic Carbon

Thermo-responsive ion imprinted polymer on the surface of magnetic carbon microspheres for identification and removal of low-concentrations of Cu2+

2018 ◽  
Vol 15 (5) ◽  
pp. 306 ◽  
Author(s):  
Weifeng Liu ◽  
Lei Qin ◽  
Zhuolin An ◽  
Lin Chen ◽  
Xuguang Liu ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Copper Ions ◽  
Selective Recognition ◽  
Infrared Spectrometry ◽  
Order Kinetic ◽  
Carbon Microspheres ◽  
Imprinted Polymer ◽  
Low Concentrations ◽  
Ion Imprinted ◽  
Magnetic Carbon

Environmental contextBecause of the multiple industrial applications of metals, contamination by metal ions is widespread and can at times endanger the environment and the health of human beings. We prepared ion-imprinted adsorbents to achieve selective recognition and smart separation of low-concentrations of copper ions from water. These smart imprinted materials have high potential for selective adsorption and removal of contaminant copper ions, particularly at very low concentrations. AbstractA temperature-responsive magnetic adsorbent (poly(N-propyl acrylamide) grafted magnetic carbon microspheres, Cu2+-IIP) was synthesised by ion imprinting technology for low concentration Cu2+ removal. Cu2+-IIP was prepared by using N-propyl acrylamide as a thermo-sensitive functional monomer, N,N-methylene-bis-acrylamide as a cross-linker and ammonium persulfate as an initiator. The morphologies and microstructures of samples were characterised by transmission electron microscopy, Fourier transform infrared spectrometry, thermogravimetry and vibrating sample magnetometry. Adsorption experiments were conducted in terms of kinetics, isotherms and selective recognition adsorption at low feed concentrations. Results indicate that Cu2+-IIP possesses good recognition selectivity and affinity for Cu2+, and can be separated from the treated solution quickly by applying an external magnetic field. The adsorption capacity towards Cu2+ depends on temperature and reaches a maximum value of 45.46 mg g−1 at 35 °C, higher than that of the non-imprinted polymer. The adsorption behaviour of Cu2+ on Cu2+-IIP can be well defined with both the pseudo-second-order kinetic model and Langmuir isotherm model. Cu2+-IIP performs good adsorption selectivity towards Cu2+ because the relative selectivity factors of Cu2+ with respect to Ni2+, Zn2+ and Cd2+ are 7.14, 7.60 and 6.77, respectively. The adsorption capacity of Cu2+-IIP remained 88.41 % after five cycles.

scholarly journals Acetylacetone functionalized magnetic carbon microspheres for the highly-efficient adsorption of heavy metal ions from aqueous solutions

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 3337-3344 ◽  
Author(s):  
Jie Ma ◽  
Mengya Sun ◽  
Yulan Zeng ◽  
Zhenhua Liu ◽  
Manman Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Solid Phase ◽  
Carbon Microspheres ◽  
Highly Efficient ◽  
Magnetic Carbon

Herein, Acac-C@Fe3O4, a magnetic carbon (C@Fe3O4) modified with acetylacetone (Acac), was first prepared and used as a solid-phase adsorbent for adsorbing some heavy metal ions from aqueous solution.

Enhanced persulfate degradation of PAH-contaminated sediments using magnetic carbon microspheres as the catalyst substrate

2019 ◽  
Vol 125 ◽  
pp. 219-227 ◽  
Author(s):  
Cheng-Di Dong ◽  
Yung-Chi Lu ◽  
Jih-Hsing Chang ◽  
Tsing-Hai Wang ◽  
Chiu-Wen Chen ◽  
...  
Keyword(s):  
Contaminated Sediments ◽  
Carbon Microspheres ◽  
Magnetic Carbon

Nitrogen- and oxygen-containing micro–mesoporous carbon microspheres derived from m-aminophenol formaldehyde resin for supercapacitors with high rate performance

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89744-89756 ◽  
Author(s):  
Siping Liu ◽  
Xiujuan Chen ◽  
Xiaoli Li ◽  
Pengfei Huo ◽  
Yiqun Wang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Mesoporous Carbon ◽  
High Rate ◽  
Formaldehyde Resin ◽  
Rate Performance ◽  
Carbon Microspheres ◽  
Supercapacitor Application ◽  
High Rate Performance

Nitrogen- and oxygen-containing micro–mesoporous carbon microspheres derived from m-aminophenol formaldehyde resin were prepared by the hydrothermal synthesis/carbonization/activation route for high-rate performance supercapacitor application.

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