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Preparation and characterization of titanium oxide‐densified cellulose beads for expanded bed adsorption
Author(s) -
Lei YinLin,
Lin DongQiang,
Yao ShanJing,
Zhu ZiQiang
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13010
Subject(s) - adsorption , materials science , chemical engineering , cellulose , porosity , matrix (chemical analysis) , composite material , chemistry , organic chemistry , engineering
Expanded bed adsorption (EBA) has been widely used in industrial downstream bioprocessing. Solid matrix is the principal pillar supporting the successful application of the EBA. A new type of TiO 2 ‐densified cellulose beads as matrix for EBA is exploited through the method of water‐in‐oil suspension thermal regeneration. The typical physical properties of beads are wet density 1.21 g/cm 3 , specific surface area 38.7 m 2 /mL, porosity 83.7%, and water content 69.5%. The results indicate that the custom‐assembled matrix can be derivated to function as an anion exchanger for EBA, by possessing a significant mechanical strength, stable hydrodynamics, and comparable protein breakthrough capacities with the commercial Streamline diethylaminoethyl (DEAE) adsorbent. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 2848–2854, 2003