Porous graphene oxide/carboxymethyl cellulose monoliths, with high metal ion adsorption

被引：170

作者：

Zhang, Yongli ^{[1
]}

Liu, Yue ^{[2
]}

Wang, Xinrui ^{[2
]}

Sun, Zhiming ^{[1
]}

Ma, Junkui ^{[2
]}

Wu, Tao ^{[2
]}

Xing, Fubao ^{[2
]}

Gao, Jianping ^{[2
]}

机构：

[1] Huanhu Hosp, Tianjin 300060, Peoples R China

[2] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2014年 / 101卷

基金：

美国国家科学基金会;

关键词：

Graphene oxide; Carboxymethyl cellulose; Porous monolith; Metal ion adsorption; SCAFFOLDS; FABRICATION; OXIDE; PERFORMANCE; MORPHOLOGY; DELIVERY;

D O I：

10.1016/j.carbpol.2013.09.066

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Orderly porous graphene oxide/carboxymethyl cellulose (GO/CMC) monoliths were prepared by a unidirectional freeze-drying method. The porous monoliths were characterized by Fourier transform infrared spectra, X-ray diffraction and scanning electron microscopy. Their properties including compressive strength and moisture adsorption were measured. The incorporation of GO changed the porous structure of the GO/CMC monoliths and significantly increased their compressive strength. The porous GO/CMC monoliths exhibited a strong ability to adsorb metal ions, and the Ni2+ ions adsorbed on GO/CMC monolith were reduced by NaBH4 to obtain Ni GO/CMC monolith which could be used as catalyst in the reduction of 4-nitrophenol to 4-aminophenol. Since CMC is biodegradable and non-toxic, the porous GO/CMC monoliths are potential environmental adsorbents. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：392 / 400

页数：9

共 41 条

[1] Synthesis of carboxymethyl cellulose based drug carrier hydrogel using ionizing radiation for possible use as site specific delivery system [J].