Directional charge separation on 2D/2D BiVO4/MXene for the enhanced photoelectrochemical detection of oxytetracycline antibiotic in water
Surfaces and Interfaces(2023)
Abstract
The development of a rapid yet efficient detection method is quite urgently needed to address the growing great human health concerns caused by immoderate emissions of oxytetracycline (OTC) antibiotics in water. This work reports a novel photoelectrochemical (PEC) sensor with 2D/2D BiVO4/Ti(3)C(2 )for detecting OTC in water. Through multiple characterizations, the formation of BiVO4/Ti3C2 nanocomposites and their superior photo-electronic activities were confirmed. Under visible light irradiation, when electrons transfer from excited BiVO4 to Ti3C2, small Ti3C2 nanosheets worked as the electron trap sites, resulting in efficiently directional charge separation. The rapid photocurrent responses of BiVO4/Ti3C2 are linearly related to the concentration of OTC in the range of 0.1-200 nM, with the detection limit (LOD) of (S/N = 3) 0.03 nM. In addition, the obtained BiVO4/Ti3C2 sensor possessed good stability, reproducibility and selectivity, providing a great potential in the practical application of OTC detection in water.
MoreTranslated text
Key words
Photoelectrochemical sensor,Oxytetracycline detection,BiVO4/Ti3C2,2D/2D architecture,Directional charge separation
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined