ZnO@CdS Core-Shell Heterostructures: Fabrication, Enhanced Photocatalytic, and Photoelectrochemical Performance.
ZnO@CdS Core-Shell Heterostructures: Fabrication, Enhanced Photocatalytic, and Photoelectrochemical Performance.
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ZnO@CdS 核壳异质结构：制造、增强光催化和光电化学性能
DOI：
10.1186/s11671-016-1432-7
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发表时间：
2016-12
影响因子：
--
通讯作者：
Xu X
中科院分区：
文献类型：
--
作者：
Ding M;Yao N;Wang C;Huang J;Shao M;Zhang S;Li P;Deng X;Xu X
采用水热法和电化学沉积法在碳纤维布衬底上制备了ZnO纳米棒和ZnO@CdS异质结构。以亚甲基蓝溶液为降解对象，考察了它们的光催化性能.结果表明，ZnO@CdS异质结构的光降解效率优于纯ZnO纳米棒，其中速率常数约为0.04629和0.02617 min-1。此外，ZnO@CdS异质结构的光电流比纯ZnO纳米棒提高了102倍，表明ZnO@CdS异质结构可以产生更多的自由载流子并进行转移，这可能是提高光催化性能的原因。
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 102 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.