Abstract
Photocatalytic treatment of water pollutants has attracted extensive attention due to its low energy consumption, low cost and the avoidance of secondary environmental pollution. However, most photocatalysts are in powder form, which makes it difficult to separate from the water system after the reaction. Especially in practical applications, the recycling of the catalyst is an important part. Based on the characteristics that sodium alginate (SA) is easy to form gels under mild conditions, GO-P25@SA gel beads were prepared. The catalyst can be separated from the water system by simple filtration, which greatly saves the recycle cost. Besides, the light response of TiO2 (P25) and excellent conductivity of graphene oxide (GO) make GO-P25@SA have excellent photocatalytic degradation and cyclic stability for rhodamine B (RhB). In this work, the unique merits of GO and sodium alginate (SA) in developing functionalized photocatalyst were demonstrated, providing a low-cost and easy recycle treatment strategy for rhodamine B degradation.
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Acknowledgements
This work was supported by the National Natural Science Foundation of China (21673073, 21677048 and 5171101651), Shanghai Municipal Science and Technology Major Project (Grant No.2018SHZDZX03) and the Programme of Introducing Talents of Discipline to Universities (B16017), the Science and Technology Commission of Shanghai Municipality (16JC1401400, 17520711500) and the Fundamental Research Funds for the Central Universities (222201717003).
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Gong, J., He, C., Zhang, J. et al. GO-P25@SA gel beads with excellent separation performance for photocatalytic degradation of rhodamine B. Res Chem Intermed 47, 2331–2338 (2021). https://doi.org/10.1007/s11164-021-04403-z
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DOI: https://doi.org/10.1007/s11164-021-04403-z