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Preparation and Application of Grafted Fe(III) Protoporphyrin (IX) / Modified Nanoporous Silica as a Biocatalyst for Oxidative Reactions
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نویسنده
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Adhami F. ,Nazari Kh. ,Shahvelayati A.
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منبع
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journal of applied chemical research - 2011 - دوره : 17 - - کد همایش: - صفحه:7 -14
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چکیده
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Mcm-41 and amine-modified mcm-41 were synthesized. then nanobiocatalysts were prepared through three different methods to graft hemin onto the modified nanosilicas of mcm-41 via the formation of the amide bonds. these biocatalysts were characterized by atomic absortion, ir, xrd, diffuse reflectance uv/vis spectroscopies. these biocatalysts operated as a peroxidase enzyme model. they were compared to each other by oxidation of abts in the presence of hydrogen peroxide and tert-butyl peroxide. kinetic parameters consist of initial rates, rate constant, vmax, km, kcat, catalytic efficiency and turn over number were determined for the biocatalyst.
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کلیدواژه
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Modified MCM-41 ,peroxidase enzyme model ,catalyticproperties.
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آدرس
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islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران. Research Institute of Petroleum Industry, N.I.O.C., ایران, islamic azad university, Chemistry Department, ایران
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پست الکترونیکی
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fadhami@gmail.com
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Authors
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