Synthesis and Characterization of CuMnOx-Bentonite as Efficient Catalyst for Oxidation of m-xylene

• Published in: Journal of the Chemical Society of Pakistan 2020-08, Vol.42 (4), p.504-504
• Main Authors: Mo Thi Nguyen, Mo Thi Nguyen, Cam Minh Le, Cam Minh Le, Tuan Minh Nguyen, Tuan Minh Nguyen, Hao Hoang Nguyen, Hao Hoang Nguyen, Anwar ul Haq Ali Shah Hung Van Hoang, Anwar ul Haq Ali Shah Hung Van Hoang
• Format: Article
• Language: English
• ISSN: 0253-5106
• DOI: 10.52568/000666

Catalytic oxidation of organic volatile compounds (VOCs) is considered superior to conventional methods because very low concentration of VOCs can also be oxidized and removed at low temperatures without consumption of addditional fuel and introduction of NOx compounds into the environment. Herein, the synthesis of MnO2 nanoparticles on bentonite (Bent) support in the presence of CuO for catalytic oxidation of m-xylene is reported. The synthesized materials were analyzed with FT-IR, XRD, and TEM analysis for structural and morphological characterization. XRD and TEM analysis indicated the formation of δ-MnO2 with sheet structure on Bent surface. Temperature-programmed reduction (H2-TPR) of hydrogen was used to investigate catalytic performance of δ-MnO2 towards oxidation of m-xylene at different temperatures. The catalytic activity was strongly dependent on the δ-MnO2 content in the synthesized material. 100 % oxidation of m-xylene with observed with 10% Mn content at temperature below than 325 oC. Intersetingly introduction of CuO greatly improved the catalytic activity of Mn-Bent materials. The presence of Cu in Mn-Bent has greatly reduced the temperature for complete oxidation of m-xylene. In this case100% conversion of m-xylene was observed at 250 oC.