Fast adsorption kinetics of highly dispersed ultrafine nickel/carbon nanoparticles for organic dye removal

被引：73

作者：

Kim, Taek-Seung ^{[1
]}

Song, Hee Jo ^{[1
]}

Dar, Mushtaq Ahmad ^{[2
]}

Lee, Hack-Jun ^{[1
]}

Kim, Dong-Wan ^{[1
]}

机构：

[1] Korea Univ, Sch Civil Environm & Architectural Engn, Seoul 136713, South Korea

[2] King Saud Univ, Adv Mfg Inst, Coll Engn, Ctr Excellence Res Engn Mat, Riyadh 11421, Saudi Arabia

来源：

APPLIED SURFACE SCIENCE | 2018年 / 439卷

基金：

新加坡国家研究基金会;

关键词：

Ni nanoparticle; Ultrafine; Magnetism; Dye; Fast adsorption; WASTE-WATER; NANOCOMPOSITES; EQUILIBRIUM; NICKEL; OXIDE;

D O I：

10.1016/j.apsusc.2018.01.061

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：

Magnetic metal/carbon nano-materials are attractive for pollutant adsorption and removal. In this study, ultrafine nickel/carbon nanoparticles are successfully prepared via electrical wire explosion processing in ethanol media for the elimination of pollutant organic dyes such as Rhodamine B and methylene blue in aqueous solutions. High specific surface areas originating from both the nano-sized particles and the existence of carbon on the surface of Ni nanoparticles enhance dye adsorption capacity. In addition to this, the excellent dispersity of Ni/C nanoparticles in aqueous dye solutions leads to superior adsorption rates. The adsorption kinetics for the removal of organic dyes by Ni/C nanoparticles agree with a pseudo-second-order model and follow Freundlich adsorption isotherm behavior. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：364 / 370

页数：7

共 24 条

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