氧化锌@硫化镉核壳异质结构：制备、增强的光催化及光电化学性能

Ding Meng, Yao Nannan, Wang Chenggang, Huang Jinzhao, Shao Minghui, Zhang Shouwei, Li Ping, Deng Xiaolong, Xu Xijin

School of Physics and Technology, University of Jinan, 336 Nanxinzhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.

Nanoscale Res Lett. 2016 Dec;11(1):205. doi: 10.1186/s11671-016-1432-7. Epub 2016 Apr 18.

ZnO nanorods and ZnO@CdS heterostructures have been fabricated on carbon fiber cloth substrates via hydrothermal and electrochemical deposition. Their photocatalytic properties were investigated by measuring the degradation of methylene blue under ultraviolet light irradiation. The result illustrated that the photodegradation efficiency of ZnO@CdS heterostructures was better than that of pure ZnO nanorods, in which the rate constants were about 0.04629 and 0.02617 min(-1). Furthermore, the photocurrent of ZnO@CdS heterostructures achieved 10(2) times enhancement than pure ZnO nanorods, indicating that more free carriers could be generated and transferred in ZnO@CdS heterostructures, which could be responsible for the increased photocatalytic performance.

通过水热法和电化学沉积法在碳纤维布基底上制备了氧化锌纳米棒和氧化锌@硫化镉异质结构。通过测量紫外光照射下亚甲基蓝的降解情况来研究它们的光催化性能。结果表明，氧化锌@硫化镉异质结构的光降解效率优于纯氧化锌纳米棒，其速率常数分别约为0.04629和0.02617 min⁻¹。此外，氧化锌@硫化镉异质结构的光电流比纯氧化锌纳米棒提高了10²倍，这表明在氧化锌@硫化镉异质结构中可以产生并转移更多的自由载流子，这可能是光催化性能提高的原因。