Graphene oxide impregnated with iron oxide nanoparticles for the removal of atrazine from the aqueous medium

被引：29
作者：
Andrade, Murilo B. [1 ,2 ]
Santos, Tassia R. T. [1 ,2 ]
Silva, Marcela Fernandes [2 ]
Vieira, Marcelo F. [2 ]
Bergamasco, Rosangela [2 ]
Hamoudi, Safia [1 ]
机构：
[1] Univ Laval, Dept Sols & Genie Agroalimentaire, Quebec City, PQ G1V 0A6, Canada
[2] Univ Estadual Maringa, Dept Engn Quim, Maringa, PR, Brazil
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 16期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Graphene oxide; superparamagnetic iron oxide nanoparticles; atrazine; adsorption; FE3O4/GRAPHENE NANOCOMPOSITE; ELECTROCHEMICAL SENSOR; ADSORPTION PROPERTIES; EFFICIENT REMOVAL; METHYLENE-BLUE; WASTE-WATER; PERFORMANCE; CARBON; ADSORBENT; DEGRADATION;
D O I：
10.1080/01496395.2018.1549077
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The present study proposes development of an adsorbent based on combination of graphene oxide (GO) and iron oxide (alpha-gamma-Fe2O3) nanoparticles for atrazine removal from water. The synthesized adsorbent (GO@ alpha-gamma-Fe2O3) was characterized using different techniques. Magnetic measurements proved that the adsorbent has superparamagnetic characteristics, thus facilitating its magnetic separation from the working suspensions. The maximum adsorption capacity was 42.5 mg g(-1). The Langmuir isotherm and the pseudo-second order kinetic models correlated adequately with the experimental data. The thermodynamic data showed that atrazine adsorption was spontaneous, endothermic and thermodynamically favorable.
引用
收藏
页码：2653 / 2670
页数：18
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