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

页码：34 / 40

页数：7

共 52 条

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