氧化石墨烯对Cr(Ⅵ)的吸附研究  

Study on Adsorption of Cr(Ⅵ) on Graphene Oxide

作　　者：李冬坤 单凤君[1] 

机构地区：[1]辽宁工业大学化学与环境工程学院,辽宁锦州121001

出　　处：《辽宁化工》2017年第12期1168-1170,共3页Liaoning Chemical Industry

基　　金：辽宁省教育厅大学生实践教育基地建设项目;项目号:2015029

摘　　要：针对制革、电镀废水中Cr(Ⅵ)污染水体问题,采用改进的Hummers法制备了氧化石墨烯(GO),利用傅里叶红外光谱、X射线衍射、扫描电子显微镜对氧化石墨烯(GO)的结构和表面形貌进行了表征。采用静态批式法研究Cr(Ⅵ)在氧化石墨烯(GO)上的吸附行为,重点研究了氧化石墨烯(GO)用量、吸附时间、吸附温度和Cr(Ⅵ)初始浓度等因素对吸附的影响。实验结果表明,氧化石墨烯(GO)用量、吸附时间和Cr(Ⅵ)初始浓度对吸附影响有较大,吸附温度对吸附的影响最为显著。研究结果表明氧化石墨烯(GO)可以作为吸附法处理含铬废水的的一种有研究前景的吸附材料。Graphene oxide（GO） was prepared by modified Hummers method.And scanning electron microscopy（SEM）,Fourier transform infrared spectroscopy（FTIR） and X-ray powder diffraction（XRD） were employed for characterization of morphology and structure of GO to understand the adsorption mechanism.The adsorption of Cr（Ⅵ） on GO was studied by batch technique.Effect of GO amount,adsorption time,adsorption temperature and initial concentration of Cr（Ⅵ） on the adsorption of Cr（Ⅵ） on GO was investigated.The results indicated that the adsorption of Cr（Ⅵ） was strongly dependent on the amount of GO,the adsorption time and the initial concentration of Cr（Ⅵ）; the adsorption temperature had the most significant effect on the adsorption.The research results suggest that GO may be a promising adsorption material for treatment of chromium contaminated wastewater.

关 键 词：氧化石墨烯 吸附 含铬废水 

分 类 号：TQ085[化学工程]