Magnetite/reduced graphene oxide nanocomposites: One step solvothermal synthesis and use as a novel platform for removal of dye pollutants

被引：563

作者：

Sun, Hongmei ^{[1
,2
]}

Cao, Linyuan ^{[1
,2
]}

Lu, Lehui ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Electroanalyt Chem, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

NANO RESEARCH | 2011年 / 4卷 / 06期

关键词：

Magnetic nanoparticles; graphene; nanocomposites; dye pollutants; removal; AQUEOUS-SOLUTION; WASTE-WATER; GOLD NANOPARTICLES; MALACHITE GREEN; METHYLENE-BLUE; IONIC DYES; ADSORPTION; FABRICATION; ISOTHERMS; COMPOSITE;

D O I：

10.1007/s12274-011-0111-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple one step solvothermal strategy using non-toxic and cost-effective precursors has been developed to prepare magnetite/reduced graphene oxide (MRGO) nanocomposites for removal of dye pollutants. Taking advantage of the combined benefits of graphene and magnetic nanoparticles, these MRGO nanocomposites exhibit excellent removal efficiency (over 91% for rhodamine B and over 94% for malachite green) and rapid separation from aqueous solution by an external magnetic field. Interestingly, the performance of the MRGO composites is strongly dependent on both the loading of Fe3O4 and the pH value. In addition, the adsorption behavior of this new adsorbent fits well with the Freundlich isotherm and the pseudo-second-order kinetic model. In further applications, real samples-including industrial waste water and lake water-have been treated using the MRGO composites. All the results demonstrate that the MRGO composites are effective adsorbents for removal of dye pollutants and thus could provide a new platform for dye decontamination.

引用

页码：550 / 562

页数：13

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