Layered organization of anisometric cellulose nanocrystals and beidellite clay particles accumulated near the membrane surface during cross-flow ultrafiltration: In situ SAXS and ex situ SEM/WAXD characterization
作者: Enrico F. SemeraroNicolas HenglMohamed KarrouchLaurent J. MichotErwan PaineauBruno JeanJean-Luc PutauxChristine Lancelon-PinLewis SharpnackFrédéric Pignon
作者单位: 1Univ. Grenoble Alpes, CNRS, Grenoble INP (Institute of Engineering Univ. Grenoble Alpes), LRP, F-38000 Grenoble, France
2Sorbonne Univ., UPMC, UMR 8234, Lab. Phenix, CNRS, 4 Pl. Jussieu, F-75252 Paris, 5, France
3Univ. Paris Saclay, Univ. Paris Sud, CNRS, Lab. Phys. Solides (UMR 8502), F-91405, Orsay, France
4Univ. Grenoble Alpes, CNRS, CERMAV, F-38000, Grenoble, France
5ESRF, The European Synchrotron, CS 40220, F-38043 Grenoble, Cedex 9, France
刊名: Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, Vol.584
来源数据库: Elsevier Journal
DOI: 10.1016/j.colsurfa.2019.124030
关键词: Cross-flow ultrafiltrationConcentration polarization layerSAXSAnisotropic colloidsCellulose nanocrystalsClay particlesPermeation flux
原始语种摘要: Abstract(#br)The structural organization of the concentration polarization layer (CPL) during the cross-flow membrane separation process of anisometric aqueous suspensions of colloidal cellulose nanocrystals and beidellite clay particles has been characterized by in situ time-resolved small-angle X-ray scattering (SAXS). Dedicated cross-flow filtration cells were implemented on the ID02 TRUSAXS beamline at the European Synchrotron Radiation Facility (Grenoble, France). From the analysis of the scattered intensities and structure factors of particles in the CPL, both the concentration profiles ɸ (Δz,Δt) and anisotropic structural organization have been characterized as a function of filtration time (Δt) and distance from the membrane surface (Δz). Remarkably, a coupling between...
全文获取路径: Elsevier  (合作)

  • beidellite 贝得石
  • filtration 过滤
  • organization 组织
  • membrane 
  • anisometric 非等轴的
  • cellulose 纤维素
  • during 在的期间
  • permeate 渗透
  • concentration 浓度
  • aqueous 水的