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Germanium recovery using polyphenol microspheres prepared by horseradish peroxidase reaction
Author(s) -
Nozoe Atsunori,
Abe Minoru,
Ohto Keisuke,
Kawakita Hidetaka
Publication year - 2011
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.2648
Subject(s) - horseradish peroxidase , germanium , phenol , chemistry , polyphenol , pulmonary surfactant , polymerization , phosphate buffered saline , chromatography , nuclear chemistry , microsphere , adsorption , polymer , chemical engineering , organic chemistry , silicon , biochemistry , antioxidant , enzyme , engineering
BACKGROUND: The formation of polyphenol microspheres by the polymerization of 3‐methylcatechol was performed in a methanol/phosphate buffer solution using horseradish peroxidase (HRP), without the use of a surfactant or a water/oil interface, to be used for germanium recovery. RESULTS: The polyphenol microspheres were of diameter 1 mm. The functional group density of phenol group in the polymer was approximately 15 mol kg −1 determined by the Folin‐Denis method. In batchwise experiments, the amount of germanium adsorbed was 0.23 mol kg −1 . CONCLUSION: Because germanium is a rare metal, a system for its recovery is required. Using the proposed system, continuous recovery of germanium can be achieved using multilayered microspheres. Copyright © 2011 Society of Chemical Industry
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