β-MnO2 nanowires: A novel ozonation catalyst for water treatment |
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Authors: | Yuming Dong Hongxiao Yang Kun He Shaoqing Song Aimin Zhang |
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Affiliation: | aSchool of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry, Nanjing University-Jinchuan Group Ltd. Joint Laboratory of Metal Chemistry, Nanjing University,22 Hankou road, Nanjing, Jiangsu Province 210093, PR China;bDepartment of Earth Science, Nanjing University, Nanjing 210093, PR China;cAnalysis and Testing Center, Nanjing Normal University, Nanjing 210097, PR China |
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Abstract: | Using Mn(NO3)2 and ozone as raw materials, β-MnO2 nanowires with diameters of about 6–12 nm, lengths of 2–5 μm and surface area of 73.54 m2 g−1 were synthesized by a simple hydrothermal process. The influences of synthesis conditions such as hydrothermal temperature, reaction time and ozone were investigated, and the growth process of β-MnO2 nanowires was discussed. The catalytic properties of β-MnO2 nanowires for the degradation of phenol were evaluated. β-MnO2 nanowires revealed good separability and remarkable catalysis for the degradation of phenol. |
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Keywords: | β -MnO2 nanowires Catalytic ozonation Phenol One-dimensional nanostructures Separability |
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