Affiliations: [a] Laboratory of Clean Energy Technology, Changchun University of Science and Technology, Changchun, P.R. China | [b] School of Life Science and Technology, Changchun University of Science and Technology, Changchun, P.R. China | [c] School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, P.R. China
Correspondence:
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Corresponding author: Jian Tian, Laboratory of Clean Energy Technology, Changchun University of Science and Technology, Changchun 1300022, P.R. China. Tel.: +86 431 85583402; Fax: +86 431 85583101; tianjian@cust.edu.cn
Abstract: SBA-15 surface was modified with silane reagent to increase its surface activity. Dibenzoyl methane (DBM) complexes were formed with Zn2+ and Er3+ then grafted onto the surface of SBA-15 resulting in the composite material, M(DBM)3-(SBA-15). The organic ligand DBM enhanced the energy-transfer efficiency, and enhanced the luminescent intensity of the Er3+ ion. At the same time, the Zn complex had a strong absorption to ultraviolet light, which enhanced the luminescent intensity of the rare earth ion. The Er3+ could be shielded from the environment when it was introduced into porous SBA-15, which suppressed the temperature-quenching effect. These factors resulted in much higher relative luminescent intensities for the M(DBM)3-(SBA-15) composite material.
