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Construction of CoS/CeO2 heterostructure nanocages with enhanced photocatalytic performance under visible light
Journal of the American Ceramic Society ( IF 3.9 ) Pub Date : 2020-06-27 , DOI: 10.1111/jace.17340
Bo Yu 1 , Fanming Meng 1, 2 , Ting Zhou 1 , Aoyu Fan 1 , Ziyi Zhao 1 , Muhammad Wasim Khan 1
Affiliation  

Exploring non‐noble metal photocatalysts with high activity and stability is always fascinating. Herein, the hollow CoS nanocages deriven from ZIF‐67 have been reported for the first time to combine with CeO2 NPs grown in situ for photocatalytic degradation of stubborn pollutants. The unique CoS nanocages not only provide rich active sites but also enhance light capture. CeO2 NPs loaded on the surface accelerate the separation of photocharges and extend the lifetime of photogenerated carriers. The optimized photocatalysts show outstanding activity and stability for the photodegradation of tetracycline and phenol under visible light, and the corresponding photodegradation efficiency is 96.5% and 90.5% at 60 minutes. The novel multi‐stage nanocage structure simultaneously realizes extended light absorption and improved photocharges transfer efficiency. This work provides an exclusive perspective to design high‐efficiency photocatalysts with hollow structures for environmental restoration.

中文翻译:

在可见光下具有增强的光催化性能的CoS / CeO2异质结构纳米笼的构建

探索具有高活性和稳定性的非贵金属光催化剂总是令人着迷。在此,首次报道了源自ZIF-67的空心CoS纳米笼,与原位生长的CeO 2 NP结合用于顽固污染物的光催化降解。独特的CoS纳米笼子不仅提供了丰富的活性位点,而且还增强了光捕获能力。铈2负载在表面上的NP加速了光电荷的分离并延长了光生载流子的寿命。优化后的光催化剂在可见光下对四环素和苯酚的光降解表现出出色的活性和稳定性,在60分钟时相应的光降解效率分别为96.5%和90.5%。新颖的多级纳米笼结构同时实现了扩展的光吸收和改进的光电荷转移效率。这项工作为设计具有空心结构的高效光催化剂提供了独特的视角,以进行环境修复。
更新日期:2020-06-27
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