Encapsulation of Coumarin 151 into the mesopores of modified rodlike SBA-15

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• 作者：Mina Guli ; Xiaotian Li ; Yue Chen ; Hong Ding ; Jixue Li ; Shilun Qiu
• 关键词：A. Optical materials ; A. Composites ; C. X-ray diffraction ; D. Luminescence ; D. Optical properties
• 刊名：Materials Research Bulletin
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：45
• 期：1
• 页码：1-5
• 全文大小：248 K

文摘

Dye Coumarin 151 was postgrafted into the rodlike SBA-15 mesoporous materials, which were synthesized by a direct hydrothermal synthesis method and further modified by an organic silane with a terminal amino group. Characterization by powder X-ray diffraction, N₂ adsorption–desorption, transmission electron microscopy, photoluminescence and scanning electron microscopy were carried out. Small-angle X-ray diffraction and N₂ adsorption–desorption characterizations showed that these dye containing materials remained as ordered mesostructures and the pore size was from 6 nm for blank sample to 3.6 nm for postgrafting sample. PL characterization of composite samples exhibited optical properties with different dye concentrations. The characterization showed the existence of Coumarin 151 in the channels of SBA-15 and the composite materials with novel optical properties enabled possible applications in optical sensing and electron acceptors.