加入银纳米颗粒以改善再生纤维素膜性能并减少生物污染。
Inclusion of silver nanoparticles for improving regenerated cellulose membrane performance and reduction of biofouling.
作者信息
Benavente J, García M E, Urbano N, López-Romero J M, Contreras-Cáceres R C, Casado-Rodríguez M A, Moscoso A, Hierrezuelo J
机构信息
Dep Física Aplicada, Facultad de Ciencias, Universidad de Málaga, Málaga, 29071, Spain.
Dep Química Orgánica, Facultad de Ciencias, Universidad de Málaga, Málaga, 29071, Spain.
出版信息
Int J Biol Macromol. 2017 Oct;103:758-763. doi: 10.1016/j.ijbiomac.2017.05.133. Epub 2017 May 22.
The preparation of silver nanoparticles (AgNPs) and their incorporation into the structure of a regenerated cellulose membrane by dip coating is presented. Morphological characterization of the AgNPs (average diameter of 20±2nm) was carried out by SEM/TEM, while elastic, electrical and antimicrobial properties of the hybrid membrane were also analyzed. The presence of silver nanoparticles in the membrane seems to increases its rigidity and its chemical stability against oxidation, but it only induces small changes in the transport parameters. As expected, AgNPs provide antimicrobial properties to the membrane and consequently the reduction of biofouling without affecting significantly other characteristic parameters, opening the application of the modified membrane to wastewaters treatment.
介绍了通过浸涂法制备银纳米颗粒（AgNPs）并将其掺入再生纤维素膜结构中的方法。通过扫描电子显微镜/透射电子显微镜（SEM/TEM）对AgNPs（平均直径为20±2nm）进行了形态表征，同时还分析了复合膜的弹性、电学和抗菌性能。膜中银纳米颗粒的存在似乎提高了其刚性和抗氧化化学稳定性，但仅引起传输参数的微小变化。正如预期的那样，AgNPs赋予膜抗菌性能，从而减少生物污垢，同时不会显著影响其他特征参数，为改性膜在废水处理中的应用开辟了道路。
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