A novel cellulose acetate (CA) membrane using TiO2 nanoparticles: Preparation, characterization and permeation study
A novel cellulose acetate (CA) membrane using TiO2 nanoparticles: Preparation, characterization and permeation study
复制标题
DOI：
10.1016/j.desal.2011.03.089
复制
发表时间：
2011-08-15
期刊：
影响因子：
9.9
通讯作者：
Aminzadeh, Reza
中科院分区：
文献类型：
--
作者：
Abedini, Reza;Mousavi, Seyed Mahmoud;Aminzadeh, Reza
CA/TiO2 杂化膜是通过将 TiO2 纳米颗粒分散在 CA 浇铸溶液中，通过相转化制备的。将通过声化学方法合成的TiO2纳米粒子以不同浓度添加到浇铸溶液中。通过扫描电子显微镜（SEM）和热重分析（TGA）方法研究了TiO2对CA/TiO2膜形貌和热稳定性的影响。所制备的膜的渗透性能通过纯水通量（PWF）和水含量（WC）来评价。 SEM 结果表明，TiO2 纳米粒子的添加导致杂化膜由于平均孔径增加而变得更加多孔。 TGA结果表明TiO2纳米粒子与CA之间存在相互作用。此外，通过添加 TiO2 纳米颗粒，杂化膜的热稳定性也得到了改善。膜 PWF 显示添加 TiO2 纳米颗粒会导致水渗透率增加。 (C) 2011 Elsevier B.V. 保留所有权利。
CA/TiO2 hybrid membranes were prepared via phase inversion by dispersing TiO2 nanopaticles in the CA casting solutions. TiO2 nanoparticles, which were synthesized by the sonochemical method, were added into the casting solution in different concentrations. The influence of TiO2 on the morphology and thermal stability of the CA/TiO2 membranes were investigated through the methods of scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA). Permeation performance of the prepared membranes was evaluated in terms of pure water flux (PWF) and water content (WC). SEM results show that addition of TiO2 nanoparticles cause that the hybrid membrane becomes more porous because of increasing in the mean pore size. TGA results show that the interaction exists between the TiO2 nanopaticles and CA. Also the thermal stability of the hybrid membrane was improved by the addition of TiO2 nanopaticles. The membranes PWF shows that addition of TiO2 nanoparticles leads to the water permeation increase. (C) 2011 Elsevier B.V. All rights reserved.