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Degradation of low concentration formaldehyde by mesoporous MnO2 at room temperature
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1.College of Materials Science and Engineering, China Jiliang University;2.College of Materials Science and Engineering, China Jiliang University, Hangzhou

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    Abstract:

    Mesoporous MnO2 was prepared by sol-gel method using KMnO4 and P123. The structure and properties of the synthesized materials were characterized by XRD, N2 adsorption and desorption, and FT-IR. The effects of reactant ratio and pH on the catalytic oxidation performance of the product were investigated. The optimum conditions of the preparation were as follows: the ratio of KMnO4 and P123 was 10:1 and the pH was 7. The results shown that mesoporous MnO2 has good catalytic oxidation performance to HCHO. Finally, the influencing factors of the catalytic oxidation of HCHO by mesoporous MnO2 were discussed. The specific surface area of mesoporous MnO2 (pH7-10:1) was largest. The oxidation performance was the strongest, and the degradation rate of formaldehyde was maintained at 95 %.

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[XU Ling-liang, FANG Jian-fei, TANG Hui-jie, HAN Zhe, JIN Hong-xiao, GE Hong-liang, WANG Xin-qing, LOU Hui, JIN Ding-feng, PENG Xiao-ling, LI Jing, YANG Yan-ting, HONG Bo. Degradation of low concentration formaldehyde by mesoporous MnO2 at room temperature[J]. Rare Metal Materials and Engineering,2020,49(4):1105~1109.]
DOI:10.12442/j. issn.1002-185X. SG20190065

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History
  • Received:April 26,2019
  • Revised:September 10,2019
  • Adopted:October 14,2019
  • Online: May 07,2020
  • Published: