采用溶胶-凝胶法将TiO2-x N x包覆在长余辉光致发光材料(Sr2MgSi2O7∶Eu2+,Dy3+)表面制备得到TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合材料。利用X-射线衍射(XRD)、扫描电子显微镜(SEM)对TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合光催化材料...采用溶胶-凝胶法将TiO2-x N x包覆在长余辉光致发光材料(Sr2MgSi2O7∶Eu2+,Dy3+)表面制备得到TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合材料。利用X-射线衍射(XRD)、扫描电子显微镜(SEM)对TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合光催化材料的结构及表面形貌进行表征,并研究了TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合光催化材料对甲基橙溶液的降解性能。展开更多
Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and ...Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and size were confirmed,in addition,fluorescence excitation and emission spectrum,ultraviolet absorption spectrums were investigation.Then the nanocrystallines were incorporated into the copolymer system of styrene and methyl acrylic acid,the fluorescence functional polymer nanometer material with high lanthanide content (50、wt%) were obtained.The experiment indicated that Eu(DBM) 3·H 2O nanocrystallines particle sizes were in 30～300、nm,it exhibited europium ion charlatanistic luminescence.The optical resins could provide a relatively stable environment for Eu(DBM) 3·H 2O nanocrystallines.展开更多
文摘采用溶胶-凝胶法将TiO2-x N x包覆在长余辉光致发光材料(Sr2MgSi2O7∶Eu2+,Dy3+)表面制备得到TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合材料。利用X-射线衍射(XRD)、扫描电子显微镜(SEM)对TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合光催化材料的结构及表面形貌进行表征,并研究了TiO2-x N x/Sr2MgSi2O7∶Eu2+,Dy3+复合光催化材料对甲基橙溶液的降解性能。
文摘Eu(DBM) 3·H 2O nanocrystallites were obtained by the chemical precipitation method.By the elemental analyzer,infrared spectrum,TGA-DSC and TEM,that the construction of nanocrystallines,the thermal properties and size were confirmed,in addition,fluorescence excitation and emission spectrum,ultraviolet absorption spectrums were investigation.Then the nanocrystallines were incorporated into the copolymer system of styrene and methyl acrylic acid,the fluorescence functional polymer nanometer material with high lanthanide content (50、wt%) were obtained.The experiment indicated that Eu(DBM) 3·H 2O nanocrystallines particle sizes were in 30～300、nm,it exhibited europium ion charlatanistic luminescence.The optical resins could provide a relatively stable environment for Eu(DBM) 3·H 2O nanocrystallines.
