Herald of Technological University Herald of Technological University ВЕСТНИК ТЕХНОЛОГИЧЕСКОГО УНИВЕРСИТЕТА 3034-4689 62773 ПРИКЛАДНАЯ ХИМИЯ И ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ ПРИКЛАДНАЯ ХИМИЯ И ХИМИЧЕСКАЯ ТЕХНОЛОГИЯ CATALYTIC ACTIVITY OF TITANIA-SUPPORTED MANGANESE OXIDE CATALYST IN OZONE DECOMPOSITION. PART 1 Batakliev T Batakliev T Rakovsky S Rakovsky S Zaikov G Zaikov G Georgiev V Georgiev V Anachkov M Anachkov M Abzaldinov Kh Abzaldinov Kh ov_stoyanov@mail.ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Kazan National Research Technological University ru Kazan National Research Technological University ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Institute of Catalysis, Bulgarian Academy of Sciences ru Kazan National Research Technological University ru Kazan National Research Technological University ru 01 08 2025 01 08 2025 17 6 72 74 20 04 2023 https://vestniktu.ru/en/nauka/article/62773/view

В реакции гетерогенного каталитического разложения озона исследована система оксида марганца на титановом носителе, полученная методом пропитки до начальной влажности. Каталитическая активность катализаторов, содержащих 6, 8 и 10 мас% оксида марганца была найдена с использованием коэффициента разложение γ, который пропорционален скорости разложения озона. Было установлено, что все образцы катализаторов имеют активность к разложению озона, но наиболее активным был катализатор, содержащий 10% масс. MnOx/TiO 2. Расчетные значения γ находились в диапазоне 0.05×10 -4-0.4×10 -4. Эксперименты проводились в диапазоне температур от 258 К до 313 К в трубчатом стеклянном реакторе. Установлено, что энергия активации процесса составляет 11 кДж / моль.

A titania-supported Mn oxide system made by incipient wetness impregnation method was investigated in the reaction of heterogeneous catalytic decomposition of ozone. The catalytic activity of the catalysts containing 6, 8 and 10 wt% manganese oxide was found using the decomposition coefficient γ which is proportional to ozone decomposition rate. It was established that all catalytic samples have activity towards ozone decomposition but most active was the catalyst possessing 10 wt% MnOx/TiO 2. The calculated values of γ were in the range 0.05×10 -4-0.4×10 -4. The experiments were performed in temperature range of 258 K to 313 K in a tube glass reactor. It was determined that the activation energy of the process is 11 kJ/mol.

ozone titania manganese oxide decomposition activation energy озон диоксид титана оксид марганца разложение энергия активации ozone titania manganese oxide decomposition activation energy озон диоксид титана оксид марганца разложение энергия активации

S. Rakovsky, G. Zaikov, Kinetic and Mechanism of Ozone Reactions with Organic and Polymeric Compounds in Liquid Phase, monograph (second edition), Nova Science Publishers Inc., New York, 2007, pp. 1-340. S. Rakovsky, G. Zaikov, Kinetic and Mechanism of Ozone Reactions with Organic and Polymeric Compounds in Liquid Phase, monograph (second edition), Nova Science Publishers Inc., New York, 2007, pp. 1-340. S. T. Oyama, Chemical and Catalytic Properties of Ozone, Catal. Rev. Sci. Eng., 42, 279 (2000). S. T. Oyama, Chemical and Catalytic Properties of Ozone, Catal. Rev. Sci. Eng., 42, 279 (2000). T. L. Brown, H. E. Lemay JR., B. E. Bursten, J. R. Burdge [1977], "22", in Nicole Folchetti Chemistry: The Central Science, 9th Edition (in English), Pearson Education, 2003, pp. 882-883. T. L. Brown, H. E. Lemay JR., B. E. Bursten, J. R. Burdge [1977], "22", in Nicole Folchetti Chemistry: The Central Science, 9th Edition (in English), Pearson Education, 2003, pp. 882-883. B. Dhandapani, S. T. Oyama, Gas Phase Ozone Decomposition Catalysts, J. Appl. Catal. B: Environmental, 11, 129 (1997). B. Dhandapani, S. T. Oyama, Gas Phase Ozone Decomposition Catalysts, J. Appl. Catal. B: Environmental, 11, 129 (1997). W. S. Kijlstra, D. S. Brands, E. K. Poels, A. Bliek, Mechanism of the Selective Catalytic Reduction of NO by NH3 over MnOx/Al2O3, J. Catal., 171, 208 (1997). W. S. Kijlstra, D. S. Brands, E. K. Poels, A. Bliek, Mechanism of the Selective Catalytic Reduction of NO by NH3 over MnOx/Al2O3, J. Catal., 171, 208 (1997). J. Ma, G. K. Chuah, S. Jaenicke, R. Gopalakrishnan, K. L. Tan, Catalysis by manganese oxide monolayers part 1: alumina and magnesia supports, Ber.Bunsenges. Phys. Chem., 100,585 (1995). J. Ma, G. K. Chuah, S. Jaenicke, R. Gopalakrishnan, K. L. Tan, Catalysis by manganese oxide monolayers part 1: alumina and magnesia supports, Ber.Bunsenges. Phys. Chem., 100,585 (1995). L. S. Puckhaber, H. Cheung, D. L. Cocke, A. CLearfield: Reactivity of copper manganese oxides, Solid State Ionics, 32/33,206 (1989). L. S. Puckhaber, H. Cheung, D. L. Cocke, A. CLearfield: Reactivity of copper manganese oxides, Solid State Ionics, 32/33,206 (1989). R. Ghosh, Y.-C. Son, V. D. Makwana, S. L. Suib, Liquid-phase epoxidation of olefins by manganese oxide octahedral molecular sieves, Journal of Catalysis, 224,288 (2004). R. Ghosh, Y.-C. Son, V. D. Makwana, S. L. Suib, Liquid-phase epoxidation of olefins by manganese oxide octahedral molecular sieves, Journal of Catalysis, 224,288 (2004). P. Hunter, S.T. Oyama, Control of Volatile Organic Compound Emissions, Conventional and Emerging Technologies, Wiley, New York, 2000. P. Hunter, S.T. Oyama, Control of Volatile Organic Compound Emissions, Conventional and Emerging Technologies, Wiley, New York, 2000. R. Radhakrishnan, S. T. Oyama, J. Chen, A. Asakura, Electron Transfer Effects in Ozone Decomposition on Supported Manganese Oxide, J. Phys. Chem. B, 105 (19), 4245(2001). R. Radhakrishnan, S. T. Oyama, J. Chen, A. Asakura, Electron Transfer Effects in Ozone Decomposition on Supported Manganese Oxide, J. Phys. Chem. B, 105 (19), 4245(2001). H. Einaga, A. Ogata, Benzene oxidation with ozone over supported manganese oxide catalysts: Effect of catalyst support and reaction conditions, J. Hazard. Mater., 164, 1236(2008). H. Einaga, A. Ogata, Benzene oxidation with ozone over supported manganese oxide catalysts: Effect of catalyst support and reaction conditions, J. Hazard. Mater., 164, 1236(2008). J. Lin, A. Kawai, T. Nakajima, Effective catalysts for decomposition of aqueous ozone, J. Appl. Catal. B: Environmental, 39,157 (2002). J. Lin, A. Kawai, T. Nakajima, Effective catalysts for decomposition of aqueous ozone, J. Appl. Catal. B: Environmental, 39,157 (2002). M. Muruganandham, S. H. Chen, J. J. Wu, Evaluation of water treatment sludge as a catalyst for aqueous ozone decomposition, Catalysis Communications, 8,1609 (2007). M. Muruganandham, S. H. Chen, J. J. Wu, Evaluation of water treatment sludge as a catalyst for aqueous ozone decomposition, Catalysis Communications, 8,1609 (2007). B. Ohtani, S. Zhang, S. Nishimoto and T. Kagiya, Catalytic and photocatalytic decomposition of ozone at room temperature over titanium (IV) oxide, J. Chem. Soc., Faraday Trans., 88,1049 (1992). B. Ohtani, S. Zhang, S. Nishimoto and T. Kagiya, Catalytic and photocatalytic decomposition of ozone at room temperature over titanium (IV) oxide, J. Chem. Soc., Faraday Trans., 88,1049 (1992). R. Rosal, A. Rodriguez, M. S. Gonzalo, E. Garcia-Calvo, Catalytic ozonation of naproxen and carbamazepine on titanium dioxide, J. Appl. Catal. B: Environmental, 84,48 (2008). R. Rosal, A. Rodriguez, M. S. Gonzalo, E. Garcia-Calvo, Catalytic ozonation of naproxen and carbamazepine on titanium dioxide, J. Appl. Catal. B: Environmental, 84,48 (2008). V. V. Lunin, M. P. Popovich, S. N. Tkachenko, Physical Chemistry of Ozone, Moscow University Publ. House, Moscow, 1998, pp. 377-444. V. V. Lunin, M. P. Popovich, S. N. Tkachenko, Physical Chemistry of Ozone, Moscow University Publ. House, Moscow, 1998, pp. 377-444. C. Subrahmanyam, D. Bulushev, L. Kiwi-Minsker, Dynamic Behaviour of Activated Carbon Catalysts during Ozone Decomposition at Room Temperature, J. Appl. Catal. B: Environmental, 61,98 (2005). C. Subrahmanyam, D. Bulushev, L. Kiwi-Minsker, Dynamic Behaviour of Activated Carbon Catalysts during Ozone Decomposition at Room Temperature, J. Appl. Catal. B: Environmental, 61,98 (2005). M. Stoyanova, P. Konova, P. Nikolov, A. Naydenov, St. Christoskova, D. Mehandjiev, Alumina-supported nickel oxide for ozone decomposition and catalytic ozonation of CO and VOCs, Chem. Eng. Journal, 122,41 (2006). M. Stoyanova, P. Konova, P. Nikolov, A. Naydenov, St. Christoskova, D. Mehandjiev, Alumina-supported nickel oxide for ozone decomposition and catalytic ozonation of CO and VOCs, Chem. Eng. Journal, 122,41 (2006).