کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
67711 48492 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electro-oxidation of phenol on a new type of zeolite/graphite biocomposite electrode with horseradish peroxidase
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Electro-oxidation of phenol on a new type of zeolite/graphite biocomposite electrode with horseradish peroxidase
چکیده انگلیسی

A novel biocomposite electrode containing horseradish peroxidase (HRP) and zeolite co-immobilized on gelatin particles mixed with graphite was described.Comparing the composite (zeolite/graphite) and the biocomposite (gelatin/HRP/zeolite/graphite) electrodes showed that the latter presented an enhancement on the electrodes diffusion properties and, apparently, the enzyme co-immobilized with zeolite on gelatin was electro-active and functioned as mediator in the electro-oxidation of phenol.Various HRP/zeolite ratios were tested and the best result was obtained with the 1:100 mHRP/mzeo biocomposite electrode. These results confirm the existence of HRP–zeolite interactions, as previously observed in pseudo-homogeneous oxidation of phenol.

A novel biocomposite electrode containing horseradish peroxidase (HRP) and zeolite co-immobilized on gelatin particles mixed with graphite was described.Comparing the composite (zeolite/graphite) and the biocomposite (gelatin/HRP/zeolite/graphite) electrodes showed that the latter presented an enhancement on the electrodes diffusion properties and, apparently, the enzyme co-immobilized with zeolite on gelatin was electro-active and functioned as mediator in the electro-oxidation of phenol.Various HRP/zeolite ratios were tested and the best result was obtained with the 1:100 mHRP/mzeo biocomposite electrode. These results confirm the existence of HRP–zeolite interactions, as previously observed in pseudo-homogeneous oxidation of phenol. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 278, Issues 1–2, 14 December 2007, Pages 47–52
نویسندگان
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