Bi/BiVO4/NiFe-LDH heterostructures with enhanced photoelectrochemical performance for streptomycin detection
| Autor: | Cuijuan Xing, Zheng Wang, Caijun Wang, Zhenyu Cai, Zhiju Zhao, Liqin Yang, Yuman Wang, Jun Zhao, Zhangji Hu, Hao Guo |
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| Rok vydání: | 2021 |
| Předmět: |
Detection limit
Photocurrent Environmental Engineering Materials science Layered double hydroxides Heterojunction 02 engineering and technology General Medicine engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Highly selective 01 natural sciences humanities 0104 chemical sciences Photosensitivity engineering Environmental Chemistry 0210 nano-technology Selectivity General Environmental Science Visible spectrum Nuclear chemistry |
| Zdroj: | Journal of Environmental Sciences. 109:114-122 |
| ISSN: | 1001-0742 |
| DOI: | 10.1016/j.jes.2021.03.043 |
| Popis: | Streptomycin (STR) plays an essential role in bacterial infection treatments. Selectivity and sensitivity of photoelectrochemical (PEC) sensors are the two most important parameters, which can be measured using the photosensitivity of its active material. We prepared a novel PEC sensor to detect STR using Bi/BiVO4/LDH (layered double hydroxides) heterostructures as an active material, which is photoactive in the visible light wavelength range. The simultaneous presence of LDH and Bi/BiVO4 enhanced the material photocurrent response, which was linear to the STR concentrations in the 0.01–500 nmol/L range. The STR detection limit by this sensor was 0.0042 nmol/L. Our novel PEC-based sensing strategy includes using an ultra-sensitive and highly selective sensor for STR detection. Additionally, the two-pot synthesis of Bi/BiVO4/LDH developed in this work is environmentally friendly. |
| Databáze: | OpenAIRE |
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