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Polymeric Heterogeneous Catalysts of Transition-Metal Oxides: Surface Characterization, Physicomechanical Properties, and Catalytic Activity

Authors

  • Bui Dinh Nhi,

    Corresponding author
    1. Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)
    • Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)

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  • Dr. Renat Maratovich Akhmadullin,

    1. Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)
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  • Dr. Alfiya Garipovna Akhmadullina,

    1. Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)
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  • Dr. Yakov Dmitrievich Samuilov,

    1. Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)
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  • Dr. Svetlana Ivanova Aghajanian

    1. Department of Technological Synthetic Rubber of Kazan, National Research and Technology University, 420015, K. Marks St, Bldg 72. (Russian Federation)
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Abstract

We investigate the physicomechanical properties of polymeric heterogeneous catalysts of transition-metal oxides, specifically, the specific surface area, elongation at break, breaking strength, specific electrical resistance, and volume resistivity. Digital microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, and energy-dispersive analysis are used to study the surfaces of the catalysts. The experimental results show that polymeric heterogeneous catalysts of transition-metal oxides exhibit high stability and can maintain their catalytic activity under extreme reaction conditions for long-term use. The oxidation mechanism of sulfur-containing compounds in the presence of polymeric heterogeneous catalysts of transition-metal oxides is confirmed. Microstructural characterization of the catalysts is performed by using X-ray computed tomography. The activity of various catalysts in the oxidation of sulfur-containing compounds is determined. We demonstrate the potential application of polymeric heterogeneous catalysts of transition-metal oxides in industrial wastewater treatment.

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