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The authors first report the three‐dimensional (3D) structured CeO2–PLA scaffold using a 3D printing methodology. The scaffold is prepared by decorating functional metal‐oxide nanoparticles onto the 3D‐printed polylactic acid (PLA) platform via an electrostatic interaction and is applied to the applications for photochemical degradation. As‐designed CeO2–PLA scaffold shows high photocatalytic degradation...
In this study, we have investigated the role of the Ce oxidation state (Ce3+/Ce4+) on the CeO2 surfaces for silicate adsorption. In aqueous medium, the Ce3+ sites lead to the formation of −OH groups at the CeO2 surface through H2O dissociation. Silicate ions can adsorb onto the CeO2 surface through interaction with the −OH groups (−Ce−OH−+−Si−O−↔−Ce−O−Si−+OH−). As the Ce3+ concentration increased...
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