Comparison of nitrate removal from water via graphene oxide coated Fe, Ni and Co nanoparticles

被引：35
作者：
Motamedi, E. [1 ]
Atouei, M. Talebi [2 ]
Kassaee, M. Z. [1 ]
机构：
[1] Tarbiat Modares Univ, Dept Chem, Tehran, Iran
[2] Tarbiat Modares Univ, Dept Soil Sci, Tehran, Iran
来源：
MATERIALS RESEARCH BULLETIN | 2014年 / 54卷
关键词：
Composites; Magnetic materials; Nanostructures; Raman spectroscopy; X-ray diffraction; COBALT OXIDE; PALLADIUM NANOPARTICLES; IRON NANOPARTICLES; ZEROVALENT IRON; NANOSCALE IRON; REDUCTION; CATALYSTS; KINETICS; REACTIVITY; NITRITE;
D O I：
10.1016/j.materresbull.2014.02.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Coating Ni and Co nanoparticles (NPs) with graphene oxide (GO) make them comparable to FeNPs in removing nitrate from water. Specifically, NaBH4 reduction of Fe3+, Ni2+ and Co2+, in the presence of GO affords quantitative yields of their corresponding magnetically functionalized nanocomposites: Ni@r-GO, Co@r-GO as well as Fe@r-GO. Efficiencies of Ni@r-GO and Co@r-GO prove comparable to that of Fe@r-GO in the removal of nitrate from water. The latter demonstrates a superior efficiency over the previously reported unanchored FeNPs. Characterizations are carried out by SEM, AFM, FT-IR, UV vis, XRD, RAMAN and VSM. Considering the advantages of Ni and Co over Fe, this approach opens up the availability of a new class of graphene-based composites, with unique properties and outstanding performance, for nitrate removal from water. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：34 / 40
页数：7
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