Catalytic decomposition of hydrogen peroxide aerosols using granular activated carbon coated with manganese oxides

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) Vol. 62; pp. 225 - 230
• Main Authors: Kwon, Ki Min, Kim, In Gyeom, Nam, Yun-Sik, Choi, Jaeyoung, Cho, Won Il, Oh, In Hwan, Lee, Kang-Bong, Jang, Min, Park, Sehkyu, Nah, In Wook
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 25.06.2018; 한국공업화학회
• Subjects: Catalyst; Decomposition; Decontamination; H2O2 aerosols; Manganese oxide-coated granular activated carbon; 화학공학; H2O2 aerosols; Manganese oxide-coated granular activated carbon; Decomposition; Decontamination; Catalyst
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2017.12.062

Granular activated carbon (GAC) was coated by a uniform nanosized MnO2 layer with a thickness of 0.5μm using a redox process in order to enhance its ability to decompose the H2O2 aerosols formed from decontamination applications. The surface characteristics of the resulting MnO2/GAC indicated that it possessed an amorphous structure with manganese of the oxidation state +4, as confirmed by SEM, EDS, XPS, SAED and BET analyses. The H2O2 aerosols decomposition activity of the new catalyst was found to be more than 20–30% higher than that of bare GAC.