Studies on preparation and luminescent character of M(DBM)₃-(SBA-15) composite materials

Article type: Research Article

Authors: Shen, Bing-jun^a | Jin, Li-hong^b | Zhao, Xin-le^a | Yu, Hui^c | Zhou, Dan^a | Tian, Jian^{a; *}

Affiliations: [a] Laboratory of Clean Energy Technology, Changchun University of Science and Technology, Changchun, China | [b] School of Life Science and Technology, Changchun University of Science and Technology, Changchun, China | [c] School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, China

Correspondence: [*] Corresponding author: Jian Tian, Laboratory of Clean Energy Technology, Changchun University of Science and Technology,Changchun 130022, China. Tel.: +86 431 85583402; Fax: +86 431 85583101; tianjian@cust.edu.cn

Abstract: In this study, SBA-15 surface was modified with silane reagent to increase its surface activity. Zn2+ and Er3+ formed complex with dibenzoyl methane (DBM). Then, the complex was grafted on the surface of the modified SBA-15 to form M(DBM)3-(SBA-15) composite material. The organic ligand DBM enhanced the energy-transfer efficiency, and enhanced the luminescence intensity of the Er3+ ion. At the same time, Zn complex has strong absorption to ultraviolet light, which has enhances the luminescence of the rare earth ion. The Er3+ could be shielded when it was introduced into porous materials, which suppressed the temperature quenching effect. These factors made the M(DBM)3-(SBA-15) have much higher relative luminescent intensities.

Keywords: SBA-15, Er/Zn, DBM, liquid-phase grafted method, luminescent property

DOI: 10.3233/MGC-150161

Journal: Main Group Chemistry, vol. 14, no. 3, pp. 173-184, 2015