Nano sand filter with functionalized nanoparticles embedded in anodic aluminum oxide templates

Article English OPEN
Phuong, NguyenThi ; Andisetiawan, Anugrah ; Van Lam, Do ; Kim, Jeong Hwan ; Choi, Doo-Sun ; Whang, Kyung-Hyun ; Nham, Jeasun ; Lee, Yun Jung ; Yoo, Yeong-Eun ; Yoon, Jae Sung (2016)
  • Publisher: Nature Publishing Group
  • Journal: Scientific Reports, volume 6 (issn: 2045-2322, eissn: 2045-2322)
  • Related identifiers: doi: 10.1038/srep37673, pmc: PMC5120303
  • Subject: Article
    mesheuropmc: parasitic diseases

Since the ancient Egyptians had used sand as filter media for water purification, its principle has been inherited through generations and it is still being used now in industries. The sand filter consists of sand literally, and the voids within the sand bed are the pores for filtration. Here we present a filtration principle using nanoparticles, so that the voids between the nanoparticles can be considered as effective pores in nanoscale dimension. Anodic aluminum oxide (AAO) membrane has been used as the working template, and the nanoparticles have been injected and embedded within the pores of the AAO template. Nanoparticles with multiple sizes have been used in order to obtain smaller voids. Moreover, the nanoparticles have been functionalized, or electrically charged, with arginine/phenylalanine (RF) peptide group. In this way, filtration performance for charged particles or molecules, such as methylene blue, has been enhanced. Consequently, this study is expected to provide a new principle for fabrication of nano voids, or nano pores, and for filtration in nanoscale dimension.
  • References (24)
    24 references, page 1 of 3

    Lalia B. S., Kochkodan V., Hasgaikeh R. & Hilal N. A review on membrane fabrication: Structure, properties and performance relationship. Desalination 326, 77–95 (2013).

    Petersen R. J.Composite reverse osmosis and nanofiltration membranes. J. Membrane Sci.83, 81–150 (1993).

    Abetz V.. Developments in membrane research: from materials via process design to industrial application. Adv. Eng. Mater.8, 328–358 (2006).

    Lee K. P., Arnot T. C. & Mattia D. A review of reverse osmosis membrane materials for desalination- development to date and future potential. J. Membrane. Sci. 370, 1–22 (2011).

    Adida S. P., Jin C., Curtiss L. A., Monteiro-Riviere N. A. & Narayan R. J. Nanoporous membranes for medical and biological applications. Rev. Nanomed. Nanobiotechnol. 1, 568–581 (2009).

    Wen L. & Jiang L. Construction of biomimetic smart nanochannels for confined water. Natl. Sci. Rev. 1, 144–156 (2014).

    Peng X., Jin J., Nakamura Y., Ohno T. & Ichinose I. Ultrafast permeation of water through protein-based membranes. Nat. Nanotech. 4, 353–357 (2009).

    Vohla C., Kõiv M., Bavor H. J., Chaxarenc F. & Mander U. Filter materials for phosphorus removal from wastewater in treatment wetlands- A review. Ecol. Eng. 37, 70–89 (2011).

    Haig S. J., Collins G., Davies R. L., Dorea C. C. & Quince C. Biological aspects of slow sand filtratration: past, present and future. Water Sci. Technol. 11, 468–472 (2011).

  • Metrics
    No metrics available
Share - Bookmark