Adsorption of naphthalene and its derivatives on magnetic graphene composites and the mechanism investigation

被引：162

作者：

Yang, Xin ^{[1
]}

Li, Jiaxing ^{[1
]}

Wen, Tao ^{[1
]}

Ren, Xuemei ^{[1
]}

Huang, Yongshun ^{[1
]}

Wang, Xiangke ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Plasma Phys, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2013年 / 422卷

基金：

中国国家自然科学基金;

关键词：

Graphene; Naphthalene; Adsorption mechanism; MULTIWALLED CARBON NANOTUBES; POLYCYCLIC AROMATIC-HYDROCARBONS; PI-PI STACKING; AQUEOUS-SOLUTION; ELECTRONIC-PROPERTIES; SULFONATED GRAPHENE; OXIDE; NANOSHEETS; WATER; PARAMETERS;

D O I：

10.1016/j.colsurfa.2012.11.063

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：

Reduced graphene oxide/iron oxide (GO/FeO center dot Fe2O3) composites were prepared as super adsorbent to adsorb 1-naphthylamine, 1-naphthol and naphthalene with different polaritiy. The adsorption capacity was found in the order of naphthalene < 1-naphthol < 1-naphthylamine. Electron-donor-acceptor (EDA) interaction was proposed to be the primary mechanism for the adsorption of aromatic compounds, and the adsorption capacity increased with increasing dipole moment. Compared with multi-walled carbon nanotubes/iron oxide (MWCNTs/FeO center dot Fe2O3), we found the morphology of adsorbents played an important role in the adsorption for these aromatic compounds. Thermodynamic experiments further indicated that the adsorption processes were endothermic and spontaneous. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：118 / 125

页数：8

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