Crossflow Ultrafiltration Properties of Monodisperse Nanoparticle Suspensions in Laminar Flow

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概要

• 論文の詳細を見る

• We systematically investigated the crossflow filtration properties of monodispersed nanoparticle suspensions with average nanoparticle diameters of 10, 45, or 80 nm when using flat ultrafiltration (UF) membranes. The relationships between permeate flux and filtration time, between steady-state flux and applied pressure, and between limiting flux and feed concentration were studied under various experimental conditions and found to be similar to those for the UF properties of macromolecular aqueous solutions, even though the target material for filtration was much larger than macromolecules. In addition, we analyzed the experimental data using the concentration polarization model, which is based on the mass balance beneath the membrane. Although the problem that the gel layer concentration or limiting flux under low feed concentration cannot be explained well using the model, as is the case when modeling the UF properties of macromolecular aqueous solutions, we demonstrated that UF membrane separation has the potential to be an effective processing technology for nanoparticle suspensions.

• 2010-12-01

著者

• Han Fang

  Department Of Anatomy And Neurobiology Kyoto Prefectural University Of Medicine

• Akamatsu Kazuki

  Department Of Chemical System Engineering The University Of Tokyo

• Nakao Shin-ichi

  Department Of Anesthesia Kyoto University Hospital

• KANEKO Yasunobu

  Process Development Center, Idemitsu Kosan Co., Ltd.

• Han Fang

  Department Of Chemical System Engineering The University Of Tokyo

• Kaneko Yasunobu

  Process Development Center Idemitsu Kosan Co. Ltd.

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