Abstract
The escalating global industrial expansion has led to the extensive release of organic compounds into water bodies, resulting in substantial pollution and posing severe threats to both human health and the ecosystem. Among common micropollutants, bisphenol A (MP-BA) has emerged as a significant endocrine-disrupting chemical with potential adverse effects on human health and the environment. This study aims to develop an efficient photocatalyst, specifically by incorporating palladium-doped graphitic carbon nitride (Pd@GCN), to eliminate MP-BA pollutants present in industrial wastewater. The examination of optical properties and photoluminescence indicates that incorporating Pd into GCN enhances the visible light absorption spectra, which extends beyond 570 nm, and accelerates the separation rate of electron–hole pairs. The photocatalytic degradation efficiency of MP-BA increases from 81.7 to 98.8% as the solution pH rises from 5.0 to 9.0. Moreover, Pd@GCN significantly improves the removal rate of MP-BA in wastewater samples, reaching an impressive 92.8% after 60 min of exposure to solar light. Furthermore, the Pd@GCN photocatalyst exhibits notable reusability over six cycles of MP-BA degradation, indicating its promising potential for the treatment of organic pollutants in wastewater under solar light conditions.
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Acknowledgements
This work was supported by Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2020H1D3A1A04081463). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1093082).
Funding
This work was supported by Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2020H1D3A1A04081463). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1093082).
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KJ was contributed to investigation, methodology, review and editing, validation writing—original draft. NMV was contributed to formal analysis and data curation. YH was contributed to investigation, methodology. PTH and KTY were contributed to conceptualization, supervision, review and editing.
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. This work was supported by Brain Pool Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT and Future Planning (2020H1D3A1A04081463). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1093082).
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Jitae, K., Pham, TH., Heesun, Y. et al. Improved photocatalytic oxidation of micropollutant in wastewater by solar light: assisted palladium-doped graphitic carbon nitride. Environ Geochem Health 46, 76 (2024). https://doi.org/10.1007/s10653-023-01834-y
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DOI: https://doi.org/10.1007/s10653-023-01834-y