Post-treatment and characterization of novel luminescent hybrid bimodal mesoporous silicas

Journal Article · Sun Aug 15 04:00:00 EDT 2010 · Journal of Solid State Chemistry

OSTI ID:21421581

Yuzhen, Li ^[1]; Xia, Wu; Li, Lin; Lin, Gao ^[1]

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1. Department of Chemistry and Chemical Engineering, College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124 (China)

A novel luminescent hybrid bimodal mesoporous silicas (LHBMS) were synthesized via grafting 1,8-Naphthalic anhydride into the pore channels of bimodal mesoporous silicas (BMMs) for the first time. The resulting samples were characterized by powder X-ray diffraction (XRD), N{sub 2} adsorption/desorption measurement, Fourier transform infrared spectroscopy (FT-IR), Transmission electron microscopy (TEM), UV-vis absorption spectroscopy, and Photoluminescence spectroscopy (PL). The results show that 1,8-Naphthalic anhydride organic groups have been successfully introduced into the mesopores of the BMMs and the hybrid silicas are of bimodal mesoporous structure with the ordered small mesopores of around 3 nm and the large mesopores of uniform intra-nanoparticle. The excellent photoluminescent performance of LHBMS has a blue shift compared to that of 2-[3-(triethoxysilyl) propyl-1 H-Benz [de]isoquinoline-1, 3(2 H)-dione, suggesting the existence of the quantum confinement effectiveness. - Graphical abstract: A novel luminescent hybrid bimodal mesoporous silicas was synthesized via modification and then grafting with 1, 8-Naphthalic anhydride, which would be strong potential application in the photoluminescent fields.

• OSTI ID: 21421581
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 8 Vol. 183; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION SPECTROSCOPY
ADSORPTION
ANHYDRIDES
AROMATICS
COHERENT SCATTERING
CONDENSED AROMATICS
DESORPTION
DIFFRACTION
ELECTRON MICROSCOPY
EMISSION
HYBRIDIZATION
INFRARED SPECTRA
LUMINESCENCE
MICROSCOPY
MINERALS
NANOSTRUCTURES
ORGANIC COMPOUNDS
OXIDE MINERALS
PERFORMANCE
PHOTOLUMINESCENCE
PHOTON EMISSION
SCATTERING
SILICA
SORPTION
SPECTRA
SPECTROSCOPY
TRANSMISSION ELECTRON MICROSCOPY
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
X-RAY DIFFRACTION