Liu Yamei, Hou Caili, Jiao Tifeng, Song Jingwen, Zhang Xu, Xing Ruirui, Zhou Jingxin, Zhang Lexin, Peng Qiuming
State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China.
Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China.
Nanomaterials (Basel). 2018 Jan 10;8(1):35. doi: 10.3390/nano8010035.
The design and self-assembly of graphene oxide (GO)-based composite membranes have attracted enormous attention due to their wide application in nanomaterial and environmental fields. In this work, we have successfully developed a strategy to fabricate new composite membranes based on poly(vinyl alcohol)/poly(acrylic acid)/carboxyl-functionalized graphene oxide modified with silver nanoparticles (PVA/PAA/GO-COOH@AgNPs), which were prepared via thermal treatment and the electrospinning technique. Due to the strong π-π forces and strong electrostatic interactions of GO-COOH sheets, the prepared composite membranes and their lager surface areas were modified by scores of AgNPs, which demonstrated that a high-efficiency photocatalyst removed the organic dyes from the aqueous solutions. The prepared PVA/PAA/GO-COOH@AgNPs nanocomposite membranes showed a remarkable photocatalytic capacity in the catalytic degradation of the methylene blue dye solutions. Most importantly, the whole process was easy, mild, and eco-friendly. Additionally, the as-prepared membranes could be repeatedly used after the catalytic reaction.
基于氧化石墨烯（GO）的复合膜的设计与自组装因其在纳米材料和环境领域的广泛应用而备受关注。在这项工作中，我们成功开发了一种策略，以制备基于聚乙烯醇/聚丙烯酸/用银纳米颗粒改性的羧基功能化氧化石墨烯（PVA/PAA/GO-COOH@AgNPs）的新型复合膜，这些复合膜是通过热处理和静电纺丝技术制备的。由于GO-COOH片层的强π-π力和强静电相互作用，制备的复合膜及其较大的表面积被大量的银纳米颗粒修饰，这表明一种高效光催化剂可从水溶液中去除有机染料。制备的PVA/PAA/GO-COOH@AgNPs纳米复合膜在催化降解亚甲基蓝染料溶液中表现出显著的光催化能力。最重要的是，整个过程简便、温和且环保。此外，制备的膜在催化反应后可重复使用。
