Single-atom catalysts(SACs)have been extensively studied in photocatalysis,electrochemistry,and thermocatalysis.However,their utilization in photothermal catalysis is still in the infancy and is worth investigating,as...Single-atom catalysts(SACs)have been extensively studied in photocatalysis,electrochemistry,and thermocatalysis.However,their utilization in photothermal catalysis is still in the infancy and is worth investigating,as these catalysts are expected to bring further advancement to the field.展开更多
Phosphors with controlled emission spectra are of great interest due to their application for white light emitting diodes.Herein, a new class of Sr3Y2（SiO3）6：Ce3＋,Tb3＋ phosphors were synthesized by a facile sol-g...Phosphors with controlled emission spectra are of great interest due to their application for white light emitting diodes.Herein, a new class of Sr3Y2（SiO3）6：Ce3＋,Tb3＋ phosphors were synthesized by a facile sol-gel combustion method. The phase structure,morphology, and luminescence properties of the phosphors were characterized by using powder X-ray diffraction（XRD）, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and photoluminescence excitation and emission spectra,respectively. The results on luminescence properties indicated that co-doped Ce3＋ ions served as UV-light sensitizers with excitation energy partially transferred to Tb3＋ ions, leading to green emission from Tb3＋. Particularly, the corresponding emitting colors of the phosphors could be well-tuned from deep blue（0.16, 0.05） to green region（0.25, 0.45） by adjusting the molar ratio of Ce3＋/Tb3＋.展开更多
基金supported by the National Key Research and Development Program of China(2022YFB3803600)the National Natural Science Foundation of China(52276212)+3 种基金the Suzhou Science and Technology Program(SYG202101)the Natural Science Foundation of Jiangsu Province(BK20231211)the Key Research and Development Program in Shaanxi Province of China(2023YBGY-300)the China Fundamental Research Funds for the Central Universities。
文摘Single-atom catalysts(SACs)have been extensively studied in photocatalysis,electrochemistry,and thermocatalysis.However,their utilization in photothermal catalysis is still in the infancy and is worth investigating,as these catalysts are expected to bring further advancement to the field.
基金supported by National Natural Science Foundation of China(31070517,21173042)the National Basic Research Program of China(2013CB932902)
文摘Phosphors with controlled emission spectra are of great interest due to their application for white light emitting diodes.Herein, a new class of Sr3Y2（SiO3）6：Ce3＋,Tb3＋ phosphors were synthesized by a facile sol-gel combustion method. The phase structure,morphology, and luminescence properties of the phosphors were characterized by using powder X-ray diffraction（XRD）, scanning electron microscopy（SEM）, transmission electron microscopy（TEM）, and photoluminescence excitation and emission spectra,respectively. The results on luminescence properties indicated that co-doped Ce3＋ ions served as UV-light sensitizers with excitation energy partially transferred to Tb3＋ ions, leading to green emission from Tb3＋. Particularly, the corresponding emitting colors of the phosphors could be well-tuned from deep blue（0.16, 0.05） to green region（0.25, 0.45） by adjusting the molar ratio of Ce3＋/Tb3＋.
