Encapsulation of the Functional Supramolecular Material Between MCM-41 and Rhodamine B and Its Luminescence

Abstract

Abstract: In this investigation, mesoporous molecular sieve MCM-41 was synthesized with tetraethyl orthosilicate(TEOS) as the source of silica and cetyltrimethylammonium bromide(CTABr) as the template for the first time by microwave radiation method. The products obtained by microwave radiation method gave similar XRD and SEM photograph with that by hydrothermally synthesized method. While our products possess a spherical hexagon and the diameter of the crystal powder is about 10m. The encapsulation of the functional supramolecular material between MCM-41 and rhodamine Bwas prepared under vacuum condition, the product was characterized by XRD, TG, IR, SEM and fluorescent spectrum. The results showed that the RB⁺ions have entered into the channel of MCM-41 and formed the centers of luminescence, hence the functional supramolecular material with strong luminescence under UVexcitation was obtained. The peak values of the excitation and emission spectra are 335.2 and 587.2 nm, respectively.

Key words: MCM-41, Rhodamine B, Functional material of superamolecule, Luminescence

CLC Number:

O644.2

TrendMD:

ZHANG Mai-Sheng, LIU Wei-Jiang, YANG Yan-Sheng, CHEN Jie-Sheng, FENG Shou-Hua, XU Ru-Ren . Encapsulation of the Functional Supramolecular Material Between MCM-41 and Rhodamine B and Its Luminescence[J]. Chem. J. Chinese Universities, 1999, 20(4): 526.

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Encapsulation of the Functional Supramolecular Material Between MCM-41 and Rhodamine B and Its Luminescence

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