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Studies on the state of iron oxide nanoparticles in MCM-41 and MCM-48 silica materials

✍ Scribed by Ralf Köhn; Daniela Paneva; Momtchil Dimitrov; Tanya Tsoncheva; Ivan Mitov; Christo Minchev; Michael Fröba


Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
688 KB
Volume
63
Category
Article
ISSN
1387-1811

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The samples of as-synthesized siliceous MCM-41, extracted MCM-41, amorphous silica particles and silica xerogels were heat treated from room temperature to 1000 °C. Their photoluminescence (PL) spectra at room temperature excited by 254 nm and 365 nm ultraviolet light (UV) were investigated and comp