Zhenzhong Liu , Chenyang Guo , Jialei Ying , Xinlei Xu , Yang Xu , Qijie Liu , Guihua Chen , Xiaolu Qu , Yongzheng Yue , Changyan Xue
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引用次数: 0
摘要
本研究通过自聚合法包覆聚多巴胺（PDA）和煅烧法负载 MnO2，制备了新型 N 掺杂 Al2O3/PDA/MnO2 臭氧催化剂。通过 XRD 和 XPS 对臭氧催化剂进行了表征，证实了 N 掺杂 Al2O3/PDA/MnO2 的成功制备。PDA 聚合物的装饰可以提高 MnO2 在 Al2O3 球体上的负载和分散性能。相比之下，掺杂 N 的 Al2O3/PDA/MnO2 臭氧催化剂降解亚甲基蓝（MB）的表观速率常数是未掺杂 Al2O3/MnO2 的 2.67 倍。这项工作为探索新型聚合物辅助功能 Al2O3 臭氧催化剂在废水处理中的应用提供了一种通用策略。
Polydopamine assisted synthesis of N-doped Al2O3/PDA/MnO2 for enhanced catalytic ozonation of MB in waste water
In this study, a novel N-doped Al2O3/PDA/MnO2 ozonation catalyst were fabricated by sequential coating of polydopamine (PDA) via self-polymerization and MnO2 loading via calcination processes. The ozonation catalyst was characterized by XRD and XPS, confirming the successful preparation of N-doped Al2O3/PDA/MnO2. The decoration of PDA polymer can enhance the loading and dispersion properties of MnO2 on Al2O3 spheres. In contrast, the apparent rate constant of N-doped Al2O3/PDA/MnO2 ozonation catalyst for methylene blue (MB) degradation was 2.67 times than that of undoped Al2O3/MnO2. This work provides a general strategy for exploring novel polymer-assisted functional Al2O3 based ozonation catalyst for waste water treatment applications.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
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• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
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