期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 27, 期 6, 页码 6459-6475出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-019-07315-z
关键词
Dextran; AgNPs; AuNPs; PdNPs; Aromatic pollutant; Nano-catalysis
Nanostructures have great potential in catalysis and their compositions may cause some interferences in the reactivity. Therefore, the present study focuses on comparison between three metallic nanoparticle-based Ag, Au, and Pd as nano-catalyst in reduction of aromatic pollutants. To neglect any interpenetration in their catalytic reactivity, the metallic nanoparticles were prepared via a consistent and reproducible one-step method with alkali-activated dextran. Interestingly, small sized/spherical AgNPs, AuNPs, and PdNPs were successively prepared with particle size of 3.4, 8.3, and 17.1 nm, respectively. The catalytic performance of the synthesized NPs was estimated for the reduction of p-nitroaniline and methyl red dye as different aromatic pollutants. Regardless of the particle size, there was a strong relation between catalytic action and the type of metal which followed the order of PdNP > AuNPs > AgNPs.
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