期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 22, 期 38, 页码 20498-20503出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2jm34566h
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- P.O. FSE
A new method for the preparation of fluorescent mesoporous La-Ce phosphate films by spin coating is reported here. The structure is obtained by a pore-confined synthesis involving an in situ growth of La0.5Ce0.5PO4 nanoparticles inside the pores of a mesoporous silica thin film and the subsequent partial sintering. The removal of the sacrificial mesoporous silica matrix is achieved by chemical etching, which leaves on the substrate a La0.5Ce0.5PO4 mesoporous film exhibiting good adhesion properties and high fluorescence intensity that can be quenched by a water solution containing organo-phosphate bearing nitrophenyl groups. The sensing capabilities of these materials have been tested for the detection of pesticides in water.
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