Abstract
The semiconductor photocatalytic technology has been considerably studied due to its excellent catalytic performance in water pollution control. Herein, in this study, novel SrCoO3/Ag3PO4 composite materials with different SrCoO3 content were synthesized via a simple hydrothermal synthesis method. The characteristics of the as-prepared samples were detected through SEM/HRTEM, XRD, UV-vis DRS, PL, ESR, FT-IR, and XPS techniques, and then, the photocatalytic performance of SrCoO3/Ag3PO4 toward the degradation of tetracycline was investigated. When the mass ratio of SrCoO3 and Ag3PO4 in the composite was 1:1.5, the degradation rate constant of tetracycline in SrCoO3/Ag3PO4 (1:1.5) system is 0.0102 min−1, which is 1.7 times that of the Ag3PO4, and 3.78 times that of the SrCoO3. In addition, reactive species were also analyzed through the free radical trap** experiment and DMPO spin-trap** ESR spectra analysis, showing that OH•, h+, and O2•−participated in the catalytic degradation process of tetracycline to varying degrees. Finally, the photocatalytic mechanism of SrCoO3/Ag3PO4 was also proposed.
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Funding
This work has been financially supported by the National Natural Science Foundation of China (51708116, 21908220), the Doctoral Fund of Ministry of Education of China (2019M663139, 2020M672854), the Natural Science Foundation of Guangdong Province of China (2020A1515010364), the 13th Five-Year Plan of Educational Science in Guangdong Province special Innovation Projects (Natural Science) (No. 2018KTSCX243), and Scientific Research Foundation for High-level Talents of Foshan University (No. gg07014).
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Ning Li: conceptualization, data curation, validation, visualization, funding acquisition, writing—review and editing. Jieming Chen: formal analysis, investigation, methodology, software, writing—original draft. **aojuan Chen: data curation, project administration, funding acquisition, writing—review and editing. Yiqi Lai: investigation, resources, experiment. Chunmu Yu: investigation, resources, experiment. Liang Yao: investigation, resources, experiment. Yunqing Liang: investigation, resources, experiment.
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Li, ., Chen, J., Chen, X. et al. Novel visible-light-driven SrCoO3/Ag3PO4 heterojunction with enhanced photocatalytic performance for tetracycline degradation. Environ Sci Pollut Res 29, 9693–9706 (2022). https://doi.org/10.1007/s11356-021-16338-4
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DOI: https://doi.org/10.1007/s11356-021-16338-4