The grafting of Rhodamine B onto sol-gel derived mesoporous silicas

Amorphous meseporous silica, silica foams and silica nanotubes have been prepared by the controlled hydrolysis of tetraethoxysilane in various environments. A self-similar structure was obtained in all cases. Rhodamine B was post grafted onto the meseporous silica foam which has been modified with γ...

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Bibliographic Details
Published in:Dyes and pigments 2003, Vol.56 (1), p.51-57
Main Authors: Seçkin, Turgay, Gültek, Ahmet, Kartaca, Süleyman
Format: Article
Language:English
Subjects:
Applied sciences
Chemical industry and chemicals
Dyes
Dyes, pigments
Exact sciences and technology
Industrial chemicals
Mesoporous material
Pigments
Rhodamine B
Silica
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Summary:Amorphous meseporous silica, silica foams and silica nanotubes have been prepared by the controlled hydrolysis of tetraethoxysilane in various environments. A self-similar structure was obtained in all cases. Rhodamine B was post grafted onto the meseporous silica foam which has been modified with γ-glycidyloxypropyl trimethoxysilane. The grafting and post grafting efficiency of γ-glycidyloxypropyl trimethoxysilane as well as the post grafting efficiency of Rhodamine B on meseporous silica foam were studied, respectively. Basic physicochemical properties of the modified particles are given. When the hybrid pigments were exposed to UV radiation pulses, the emission of the hybrid pigments was increased.
ISSN:0143-7208
1873-3743
DOI:10.1016/S0143-7208(02)00116-X