期刊
NANOSCALE
卷 5, 期 7, 页码 3022-3029出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3nr34096a
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- Program for New Century Excellent Talents in University from Central South University (CSU) [NECT-2012-0553]
- Hunan Outstanding Young Teachers Program from Central South University (CSU)
- Program for Shenghua Overseas Talents from Central South University (CSU) [1681-7601110203]
Rationally designed SnO2@CdS nanowire-quantum dots (QDs) heterostructures were realized by a wet-chemical method via hydroxide cluster growth mechanism on high crystalline quality SnO2 nanowires, which were synthesized by a vapor transport method. The heterostructures showed enhanced photon harvesting capability and photodetection sensitivity at visible regime than that of wide band gap homogeneous SnO2 nanowires, as characterized by UV-Vis absorption and photoconductivity measurements. In addition, the SnO2@CdS nanowire-QDs heterostructures showed enhanced photocatalytic activity by more than 109% in a conceptual demonstration of photodegradation of methylene blue solution. Our results suggest that the SnO2@CdS nanowire-QDs heterostructures exhibit considerable promise for highly sensitive visible-light photodetectors and highly efficient photocatalysis.
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