【摘要】 采用热合成法制备具有过硫酸盐(PMS)催化活性的钴单原子(Co-SA)纳米催化剂。利用扫描电镜、透射电镜、球差电镜、X射线粉末衍射、氮气吸附-脱附、电化学、电子自旋共振等手段表征催化剂的形貌、晶体结构、孔径分布、氧化还原能力以及催化性能等性质。以双酚A为模拟污染物,评价催化剂在以PMS为氧化剂的类Fenton体系中的催化降解能力。该实验设计有助于使学生了解当前材料化学领域的研究前沿,掌握基本的实验技能以及表征知识,提高学生对复杂科学问题的综合分析能力。更多还原

【Abstract】 The open experiment included the thermal synthesis and characterization of Co single atom catalyst( Co-SA) for peroxymonosulfate( PMS) catalysis. The as-prepared catalyst was characterized by scanning electron microscope,transmission electron microscope,spherical aberration corrected transmission electron microscope,X-ray powder diffraction,nitrogen adsorption-desorption,electrochemical analysis and electron spin resonance to determine the morphology,crystal structure,pore size distribution,redox capacity and catalytic capability. The catalytic activity of the catalyst was evaluated by the degradation of bisphenol A using PMS as oxidant in Fenton-like system. The open experiment will be in favor of understanding the current frontier in the research field of material chemistry,grasping basic experimental skills and characterization knowledge,and improving the comprehensive analysis ability of complex scientific problems.更多还原