摘要
通过冷冻干燥的方法制备掺氮三维石墨烯/聚乙烯醇复合材料,采用傅立叶红外光谱(FTIR)对掺氮三维石墨烯/聚乙烯醇复合材料的结构进行表征。以Cd(NO_(3))_(2)·4H_(2)O为Cd源,在恒温及恒定pH条件下,采用静态吸附法研究掺氮三维石墨烯/聚乙烯醇复合材料对Cd^(2+)的吸附。结果表明,掺氮三维石墨烯/聚乙烯醇复合材料的红外光谱得到了目标产物;同时掺氮三维石墨烯/聚乙烯醇复合材料对Cd^(2+)的吸附动力学与二级动力学模型相吻合。说明所制备的掺氮三维石墨烯/聚乙烯醇复合材料吸附剂,具有吸附速率高及重复使用性能优等特点。
N-doped 3D graphene/PVA composite was prepared by freeze-dried technology and characterized by FTIR.Cd(NO_(3))_(2)·4H_(2)O solution as Cd source was employed to investigate the adsorption capacity of N-doped 3D graphene/PVA composite.Batch experiments of Cd^(2+)adsorption on N-doped 3D graphene/PVA composite were carried out by keeping the constant temperature and pH.The results showed that the adsorption data fitted the pseudo-second-order kinetics.N-doped 3D graphene/PVA composite has the high adsorption capacity and excellent characteristics of repeated use.
作者
王国祥
WANG Guoxiang(College of Chemistry and Chemical Engineering,Hunan Institute of Science and Technology,Yueyang Hunan 414006,China)
出处
《海南热带海洋学院学报》
2021年第2期102-107,共6页
Journal of Hainan Tropical Ocean University
基金
湖南省环境保护厅资助项目(湘财建二指〔2019〕0011号)
湖南省教育厅科学研究项目(20A220)。
作者简介
王国祥,男,江苏扬州人,教授,博士,研究方向为活性聚合制备功能材料及性能。
