Reusable cubic porous light-storing assisted photodegradation composite Sr2MgSi2O7 :Eu2+,Dy3+/Ag3PO4 device with adsorption-photocatalysis effects for dark degradation

Sr2MgSi2O7:Eu2+, Dy3+(SMSED) is a common persistent luminescence (PersL) material with excellent performance. In this work, the cubic SMSED phosphor with porous structure was prepared by employing a template-assisted high temperature solid-phase(THT) method. THT method can lower the calcination temperature, improve the performance, and form a good pore structure. This is conducive to the subsequent recombination with the photocatalyst. Then, Ag3PO4(APO) is compounded in situ in the pore structure of SMSED PersL material. And the cubic porous SMSED/APO composite device possesses an obvious catalytic function regardless of the presence of light or not. The good adsorption of porous materials and photocatalysis can synergistically adsorb organic pollutants to obtain faster degradation efficiency. Moreover, the SMSED PersL material with porous structure can be reused, reducing secondary pollution. This work will help reduce the energy consumption of industrial production of PersL material and promote the further application of photocatalytic technology. [GRAPHICS] .

Automated summary

In this study, a porous SMSED phosphor and Ag3PO4 composite material was successfully prepared. The porous SMSED/APO composite material exhibited prominent catalytic function, capable of adsorbing organic pollutants and achieving high degradation efficiency. The porous structure of the SMSED phosphor enabled reusability and reduced secondary pollution. This research contributes to reducing energy consumption in the production of persistent luminescence materials and promoting the application of photocatalytic technology.