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Synthesis and Characterization of Iron Phthalocyanine Supported on Graphene Oxide and Catalysis of Adrenaline

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Iron tetranitro-phthalocyanine was synthesized by the reaction of 4-nitrophthalimide with FeCl3, and was then modified by γ-(trimethoxysilyl)propane-1-thiol to prepare functionalized iron phthalocyanine. A graphene oxide/iron phthalocyanine composite was then prepared, comprising functionalized iron phthalocyanine supported on the surface of graphene oxide via covalent bonds. All these complexes were characterized by infrared spectra (IR), X-ray diffraction, ultraviolet/visible (UV/vis) and Raman spectroscopy, and scanning electron microscopy. The catalytic properties of the graphene oxide/iron phthalocyanine composite for catalyzing adrenaline oxidation were evaluated by measuring the absorbance intensity at the characteristic peak of the oxidation product. A fiberoptic adrenaline sensor based on a graphene oxide/iron phthalocyanine composite catalyst and fluorescence quenching was fabricated and studied. The relationship between the concentrations of dissolved oxygen and adrenaline was investigated by measuring the phase delay φ. The results showed that the graphene oxide/iron phthalocyanine composite can effectively catalyze adrenaline oxidization, and the optimal conditions are pH = 8.0, T = 30 °C, and m GO-FePc = 4.0 mg/mL; moreover, concentrations of adrenaline can be detected in the range from 1.8×10−6 to 9.2×10−5 mol/L with a sensor response time of 4 min.
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Keywords: Adrenaline; Catalysis; Graphene Oxide; Iron Phthalocyanine

Document Type: Research Article

Affiliations: School of Materials Science and Engineering, Sichuan University of Science and Engineering, 643000 Zigong, Peoples Republic of China

Publication date: April 1, 2020

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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