Preparation of Tetraethylenepentamine Modified Magnetic Graphene Oxide for Adsorption of Dyes from Aqueous Solution

文献类型: 外文期刊

第一作者: Tang, Xiaosheng

作者: Tang, Xiaosheng;Tang, Xiaosheng;Tang, Xiaosheng;Tang, Ping;Liu, Liangliang;Tang, Ping

作者机构:

关键词: adsorption;dye;graphene oxide;magnetic nanoparticles;tetraethylenepentamine

期刊名称:JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY ( 影响因子:1.838; 五年影响因子:1.9 )

ISSN: 0103-5053

年卷期: 2018 年 29 卷 2 期

页码:

收录情况: SCI

摘要: In this study, tetraethylenepentamine modified magnetic graphene oxide nanomaterial (TMGO) was prepared and characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and vibration sample magnetometer (VSM). All the characterizations proved that the modification and preparation of TMGO were successful. The TMGO nanomaterial was used in the adsorption of Acid Red 18 (AR) in aqueous solution. The parameters like pH of solution, adsorption kinetics and isotherms were all investigated. The results indicated that the TMGO nanomaterial had satisfied adsorption ability and the maximum adsorption capacity was 524.2 mg g(-1) at 45 degrees C and pH 6. The adsorption capacity remained at 91.8% of the initial value after five cycles. The adsorption process with AR was found through fitting the pseudo-second-order kinetics equations and the Freundlich adsorption model. The experimental results demonstrated that the TMGO nanomaterial could be rapidly extracted from the medium and had a good adsorption ability to remove dyes in wastewater.

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