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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Size-Tailored Porous Spheres of Manganese Oxides for Catalytic Oxidation via Peroxymonosulfate Activation
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Size-Tailored Porous Spheres of Manganese Oxides for Catalytic Oxidation via Peroxymonosulfate Activation

机译：通过过一硫酸盐活化催化氧化的尺寸限定的氧化锰多孔球

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摘要

Highly porous and monodisperse manganese oxides with different particle sizes were synthesized via a one-pot hydration and annealing process. Their catalytic performances were evaluated by the activation of peroxymonosulfate (PMS) to degrade phenol in aqueous solutions. The effects of sphere size (200-500 nm), calcination temperature (200-1000 degrees C), catalytic stability (leaching problem and reusability), reaction kinetics, and reaction temperature (25-45 degrees C) on the degradation efficiencies as well as the degradation mechanism were comprehensively studied. The small sized catalyst displayed the best efficiency in decomposition of phenol, and the annealing treatments would significantly improve the catalytic stability.
机译：通过一锅水合和退火工艺合成了具有不同粒径的高度多孔和单分散的锰氧化物。通过活化过一硫酸盐（PMS）降解水溶液中的苯酚来评估其催化性能。球体尺寸（200-500 nm），煅烧温度（200-1000摄氏度），催化稳定性（浸出问题和可重复使用性），反应动力学和反应温度（25-45摄氏度）对降解效率的影响作为降解机理的综合研究。小型催化剂表现出最佳的苯酚分解效率，退火处理将显着提高催化稳定性。

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