Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 306, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2019.127552
Keywords
MOF-derived ZnCdS@MoS2; Heterostructure; Hierarchical hollow; PEC aptasensor; Lincomycin
Funding
- Guangdong Basic and Applied Basic Research Foundation [2019A1515010618]
- Guangdong Special Funds for the Science & Technology Project [190827105555408]
Ask authors/readers for more resources
The construction of heterostructures is considered as an effective strategy to facilitate migration of photogenerated carriers and boost the photoelectrochemical (PEC) performances. Herein, a novel hierarchical hollow ZnCdS@MoS2 heterostructured cages derived from metal-organic frameworks (MOFs) were synthesized by solvothermal and hydrothermal methods. The morphology of MoS2 grown on the surface of ZnCdS polyhedral cages could be well-controlled by changing the experimental conditions. Under visible light irradiation, compared with pristine ZnCdS and MoS2, the PEC response of the ZnCdS@MoS 2 was enhanced by 3.1-fold and 47.3-fold, respectively. The enhanced PEC properties were ascribed to the synergy between tailored hierarchical hollow structure and close contact heterojunction interface, which can promote visible-light harvesting, accelerate charge migration, and curb recombination of photogenerated carriers. Benefiting from the remarkable PEC performance of hierarchical hollow ZnCdS@MoS 2 heterostructured cages, a label-free PEC aptasensor platform was constructed for lincomycin detection with excellent selectivity and sensitivity. The developed PEC aptasensor displayed a wide liner response of 1 x 10(-10) to 3 x 10(-7) mol L-1 with a low detection limit of 7.6 x 10(-11) mol L-1. This work demonstrates the marvelous potential of hierarchical hollow ZnCdS@MoS2 heterostructured cages in PEC sensing applications. Most importantly, this work opens an avenue for the design and synthesis of MOF-derived novel heterostructures.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available