| Titre : | Polyphenol polymerization by horseradish peroxidase for metal adsorption studies (2009) |
| Auteurs : | Hidetaka Kawakita, Auteur ; Kohshi Hamamoto, Auteur ; Keisuke Ohto, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 9, Mai 2009) |
| Article en page(s) : | pp. 4440–4444 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Polyphenol Horseradish peroxidase reaction Fourier transform infrared spectrometry Size-exclusion chromatography Metal adsorption |
| Résumé : | Four phenol derivatives (m-cresol, 3-methylcatechol, 4-methylcatechol, and 4-ethylcatechol) were polymerized using the horseradish peroxidase reaction, and their metal adsorption capabilities were studied. Fourier transform infrared (FT-IR) spectrometry and size-exclusion chromatography indicated that the phenol monomers polymerized to give polyphenols having molecular weights from 700 to 3000. During metal adsorption studies, poly(3-methylcatechol) adsorbed copper ions at 100% in a solution of pH 5.0, whereas poly(m-cresol) failed to adsorb any copper ions. Gold ions selectively adsorbed to poly(4-ethylcatechol) in acid media and formed gold particles via reduction of the polyphenol. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie800830m |
