Adsorption of VOCs on reduced graphene oxide

作     者：Lian Yu Long Wang Weicheng Xu Limin Chen Mingli Fu Junliang Wu Daiqi Ye 

作者机构：College of Environment and EnergySouth China University of TechnologyGuangzhou 510006China Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution ControlOuangzhou 510006China National Engineering Laboratory for VOCs Pollution Control Technology and EquipmentSouth China University of TechnologyGuangzhou 520006China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2018年第30卷第5期

页      面：171-178页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：financially supported by the China Postdoctoral Science Foundation(2016M592496) National Natural Science Foundation of China(Nos.91645119,21207039,U1201231,51378218,51108187 and 50978103) the Fundamental Research Funds for the Central Universities(Nos.2017BQ053 and 2017BQ055) Natural Science Foundation of Guangdong Province,China(Grant No.2014A030310431) Guangzhou Science and Technology Plan(201607010095) 

主　　题：Graphene oxide Reduced graphene oxide Volatile organic compounds Adsorption 

摘      要：A modified Hummer＇s method was adopted for the synthesis of graphene oxide（GO） and reduced graphene oxide（rGO）. It was revealed that the modified method is effective for the production of GO and rGO from graphite. Transmission electron microscopy（TEM） images of GO and rGO showed a sheet-like morphology. Because of the presence of oxygenated functional groups on the carbon surface, the interlayer spacing of the prepared GO was higher than that of rGO. The presence of ／OH and CO groups in the Fourier transform infrared spectra（FTIR） spectrum and G-mode and 2D-mode in Raman spectra confirmed the synthesis of GO and rGO. rGO（292.6 m2/g） showed higher surface area than that of GO（236.4 m2/g）. The prepared rGO was used as an adsorbent for benzene and toluene（model pollutants of volatile organic compounds（VOCs）） under dynamic adsorption/desorption conditions. rGO showed higher adsorption capacity and breakthrough times than GO. The adsorption capacity of rGO for benzene and toluene was 276.4 and 304.4 mg/g, *** experiments showed that the spent rGO can be successfully regenerated by heating at 150.0℃. Its excellent adsorption/desorption performance for benzene and toluene makes rGO a potential adsorbent for VOC adsorption.