期刊
RSC ADVANCES
卷 4, 期 72, 页码 38192-38198出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra05800c
关键词
-
资金
- National Natural Science Foundation of China [91126020, 41273134, 21107115, 91326202, 21225730]
Graphene oxides (GOs) decorated with Fe3O4 nanoparticles (GOs/Fe3O4) were modified by polyaniline (PANI). Selecting methyl orange (MO) as an organic pollutant model, the hierarchical GOs/Fe3O4/PANI magnetic composites showed high adsorption capacity toward MO (585.02 mg g(-1)), which was superior to that of other adsorbents. The nitrogen-containing functional groups of PANI decorated on GOs/ Fe3O4/PANI provided numerous effective adsorption sites and thus increased the adsorption capacity for MO. Moreover, PANI protected the Fe3O4 nanoparticles from dissolution, and therefore improved the stability of GOs/Fe3O4/PANI in solution. The results show that the GOs/Fe3O4/PANI magnetic composites are promising magnetic nanomaterials for the preconcentration and separation of ionic dye pollutants from aqueous solutions for environmental pollution cleanup.
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