摘要
利用多巴胺在水中的自聚合以及还原性能,水热法一步反应制备聚多巴胺-石墨烯气凝胶(PGA),用SEM、XRD、FTIR、Raman和接触角对PGA进行表征,结果表明:本研究制备的聚多巴胺-石墨烯气凝胶(PGA)具有理想的疏水性对有机溶剂有很好的吸附性能,同时对三氯甲烷吸附量最大达到120.5 g·g^-1,是一种良好的吸附材料。同时还研究了其对亚甲基蓝的吸附性能,发现该吸附行为符合准二级动力学模型和Langmuir等温吸附模型,吸附能力达到105.15 mg·g^-1。
Polydopamine graphene aerogel(PGA)was prepared by one-step hydrothermal reaction using the self polymerization and reduction properties of dopamine in water.SEM,XRD,FTIR,Raman and contact angle were used to characterize PGA.The results showed that the polydopamine graphene aerogels(PGA)had ideal hydrophobic properties,which had good adsorption properties for organic solvents,and the maximum adsorption capacity for chloroform reached 120.5 g·g-1.It was a good adsorbent material.The adsorption properties of methylene blue were also studied.It was found that the adsorption behavior conformed to the pseudo second order kinetic model and Langmuir isothermal adsorption model.The adsorption capacity reached 105.15 mg·g-1.
作者
张于弛
夏建荣
林棋
薛涵与
江舒杭
ZHANG Yuchi;XIA Jianrong;LIN Qi;XUE Hanyu;JIANG Shuhang(Ocean College, Minjiang University, Fuzhou, Fujian 350108, China;Fujian Engineering Research Center of New Chinese Lacquer Material, Minjiang University, Fuzhou,Fujian 350108, China)
出处
《闽江学院学报》
2020年第5期83-91,共9页
Journal of Minjiang University
基金
福建省中青年教师教育科研项目(JAT170454)
闽江学院科研项目(MYK17019)
福建省中国漆新型材料工程研究中心开放课题(323030020102)。
关键词
气凝胶
石墨烯
聚多巴胺
吸附
aerogels
graphene
polydopamine
adsorbent
