Abstract
Copper oxide deposited sodium and phosphorus co-modified g-C3N4 composite catalysts (CuO/Na-P-g-C3N4) were successfully designed and prepared by a facile thermal polycondensation and chemical deposition. The structural and photoelectrochemical properties of the prepared photocatalysts were studied by XRD, FT-IR, BET, SEM, TEM, EDX, XPS, UV-vis DRS, PL, and EIS techniques, and the photocatalytic performance in the naphthalene photodegradation under visible light irradiation was evaluated. The results showed that the successful construction of heterojunction structure would be formed between CuO and Na-P-g-C3N4 interfaces, and the most weak PL intensity for the (6%)CuO/Na-P-g-C3N4 sample with the lowest bandgap energy of 1.90 eV would be obtained. The (6%)CuO/Na-P-g-C3N4 sample exhibited highest naphthalene degradation among all the g-C3N4-based catalyst of 87.1% in 180 min owing to the promotion for the migration and separation of photoexcited electron and hole pairs. The photocatalytic degradation rate for the (6%)CuO/Na-P-g-C3N4 sample would not be significantly dropped after repeated use for 5 times. The excellent catalytic performance with good stability and durability suggested that it would be a potential candidate for the naphthalene photodegradation to protect the environment.
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The data that support the findings of this study are available on request from the corresponding author [author Zhou]. The data are not publicly available due to state restrictions e.g. “them containing information that could compromise research participant privacy/consent”.
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Zhang, X., Yin, C., Zhou, Z. et al. Visible-Light Excitable CuO/Na-P-g-C3N4 Heterojunction Catalysts for Naphthalene Photodegradation. Water Air Soil Pollut 233, 414 (2022). https://doi.org/10.1007/s11270-022-05882-5
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DOI: https://doi.org/10.1007/s11270-022-05882-5