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Hydrous Manganese Dioxide: Effect of KMnO 4 on the Structure and Adsorption Behavior of Hydrous Manganese Dioxide Toward Pb(II) and Cd(II) (Crystal Research and Technology 9/2019)
Publication year - 2019
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201970026
Subject(s) - manganese , crystallinity , adsorption , crystal structure , chemistry , inorganic chemistry , birnessite , crystallography , manganese oxide , organic chemistry
Manganese oxide materials are attractive due to their applicability in areas such as ion‐exchange, catalysis, heavy metal ion adsorption, and energy storage in batteries and supercapacitors. Shanshan Wu and Fencun Xie (article no. 1900081) have synthesized four kinds of hydrous manganese dioxide (HMO) with different morphologies by a one‐pot method. The effect of KMnO 4 on the structure and adsorption behavior of HMO has been thoroughly investigated. Higher concentration of KMnO 4 leads to a disordered, lower‐crystallinity structure, and higher zeta potential of HMO. The addition of KMnO 4 after reaction can also affect the structure and adsorption behavior of HMO, leading to higher crystallinity, fewer lattice defects, and higher adsorption capacity. The SEM and TEM analyses reveal different steps of the HMO formation process.