Fabrication of macroporous polystyrene/graphene oxide composite monolith and its adsorption property for tetracycline

被引：37
作者：
Chen, Le-Chen [1 ]
Lei, Shan [1 ]
Wang, Mo-Zhen [1 ]
Yang, Jun [2 ]
Ge, Xue-Wu [1 ]
机构：
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, USTC Anhui Tobacco Joint Lab Tobacco Chem, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, Res Ctr Tobacco & Hlth, USTC Anhui Tobacco Joint Lab Tobacco Chem, Hefei 230052, Peoples R China
来源：
CHINESE CHEMICAL LETTERS | 2016年 / 27卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Polystyrene microsphere; Macroporousm; Adsorption; Tetracycline; WALLED CARBON NANOTUBES; GRAPHENE OXIDE; FUNCTIONALIZED GRAPHENE; AQUEOUS-SOLUTION; CHELATING RESIN; WASTE-WATER; REMOVAL; MONTMORILLONITE; REDUCTION; PARTICLES;
D O I：
10.1016/j.cclet.2016.01.057
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Macroporous polystyrene microsphere/graphene oxide (PS/GO) composite monolith was first prepared using Pickering emulsion droplets as the soft template. The Pickering emulsion was stabilized by PS/GO composite particles in-situ formed in an acidic water phase. With the evaporation of water and the oil phase (octane), the Pickering emulsion droplets agglomerated and combined with each other, forming a three-dimensional macroporous PS/GO composite matrix with excellent mechanical strength. The size of the macrospores ranged from 4 mu m to 20 pm. The macroporous PS/GO composite monolith exhibited high adsorption capacity for tetracycline (TC) in an aqueous solution at pH 4-6. The maximum adsorption capacity reached 197.9 mg g(-1) at pH 6. The adsorption behaviour of TC fitted well with the Langmuir model and pseudo-second-order kinetic model. This work offers a simple and efficient approach to fabricate macroporous GO-based monolith with high strength and adsorption ability for organic pollutants. (C) 2016 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：511 / 517
页数：7
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