勃姆石改性氧化铝膜对刚果红染料吸附的研究  

Investigation of alumina membrane modified with boehmite for Congo red dye adsorption

作　　者：纪惟惟 王智杰[1] 马敬红[1] 龚静华[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,材料科学与工程学院,上海201620

出　　处：《膜科学与技术》2015年第3期57-62,共6页Membrane Science and Technology

基　　金：上海重点学科建设项目(B603)

摘　　要：通过水热法对氧化铝膜进行勃姆石表面涂层修饰,在膜的表面形成勃姆石片状和花状的多级微纳米结构.用XRD、FE-SEM、FTIR表征改性氧化铝膜的表面形态结构,并对改性前后氧化铝膜的纯水通量、孔隙率以及对刚果红染料的吸附性和过滤效果进行了研究.结果表明:改性后氧化铝膜的纯水通量和孔隙率均有所降低,但是对刚果红溶液的吸附和过滤效果明显提高.In this work, alumina membranes were modified with boehmite layers by hydrothermal method. Multi micro- and nano-structures of flake and flower-like structural boehmites grew on the surface of the membrane. XRD, FE-SEM and FTIR were used to characterize the surface morphology of the modified alumina membranes. Pure water flux, porosity of the modified membrane as well as its adsorption and filter effects for Congo red dye were a/so studied. The results show that, after modification, pure water flux and porosity of the membrane decreased, but the adsorption and filtration performance for Congo red were significantly improved.

关 键 词：氧化铝膜 勃姆石 水热法 染料吸附 

分 类 号：TQ028.8[化学工程]