Study on the properties of the photoluminescence material Tb(aspirin)3phen-MCM-41
Chang Ping Wei,
Chun Jia Peng
Yue Chun Yu
Assembly system with MCM-41 as a host and TAP (Tb(aspirin)3phen) as an active optical guest was synthesized at room temperature, and the interrelated products of MCM-41 and TAP systems were examined for comparison. The structures and the physical properties of the samples were characterized by a combination of techniques, such as XRD and N2 adsorption-desorption. Excitation and emission spectra were carried out to explore the photoluminescence (PL) properties of the samples and the relationships between the optical guest and the inorganic host. The results from these characterizations showed that the TAP is incorporated into the channels of MCM-41 and can increase the framework order of MCM-41. The reduction in the specific surface area of TAPMA (Tb(aspirin)3phen-MCM-41A) compared with that of MA (MCM-41A) imply that the TAP is confined inside the channels of MA. Based on the analyses of the excitation spectra, we suggested that the surface environment of MCM-41 affects the energy absorption of the organic ligands. PL of TAPMA and TAPMB show TAP in the different chemical environments, and a strong green PL had been observed in the TAPMA system while a much weaker light in the TAPMB system.