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Ce1–x Smx O2–δ-attapulgite(ATP)nanocomposites were successfully prepared via a facile microwave approach.This was a facile and rapid process requiring only low power of microwave irradiation(160 W).The catalytic performance of the Ce1–x Smx O2–δ-ATP nanocomposites with different Sm contents for degradation of methylene blue(MB)was systematically evaluated.The Ce1–x Smx O2–δ-ATP nanocomposites showed enhanced catalytic activities compared with pure CeO2/ATP.Specifically,the catalytic activities of Ce1–x Smx O2–δ-ATP nanocomposites increased with increase in Sm content from x=0.0 to 0.3.The introduction of an optimal amount of Sm3+into CeO2contributed to the formation of structure defects and electronic defects in the oxide lattice,which could increase concentration of oxygen vacancies.However,further increasing Sm content to x=0.4 induced the formation of more agglomerates,leading to decreased catalytic activity.It was believed that this facile,rapid microwave-assisted strategy was scalable and could be applied to synthesize other nanocomposites for different applications.
Ce1-x Smx O2-δ attapulgite (ATP) nanocomposites were successfully prepared via a facile microwave approach. This was a facile and rapid process requiring only low power of microwave irradiation (160 W). The catalytic performance of the Ce1-x Smx O2-δ-ATP nanocomposites with different Sm contents for degradation of methylene blue (MB) was systematically evaluated.The Ce1-x Smx O2-δ-ATP nanocomposites showed enhanced catalytic activities compared with pure CeO2 / ATP.Specifically, the catalytic activities of Ce1-x Smx O2-δ-ATP nanocomposites increased with increase in Sm content from x = 0.0 to 0.3. The introduction of an optimal amount of Sm3 + into CeO2contributed to the formation of structure defects and electronic defects in the oxide lattice, which could increase concentration of oxygen vacancies. Still, further increasing Sm content to x = 0.4 induced the formation of more agglomerates, leading to decreased catalytic activity. It was believed that this facile, rapid microwave-assist ed strategy was scalable and could be applied to synthesize other nanocomposites for different applications.