Preparation of nanosheet by exfoliation of layered iron phenyl phosphate under ultrasonic irradiation
- Department of Material Science, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu, Matsue, Shimane 690-8504 (Japan)
- TAYCA Corporation, Osaka Research Laboratory, 1-3-47 Funamachi, Taisho-ku, Osaka 551-0022 (Japan)
Synthetic layered iron phenyl phosphate (Fe(OH)(C{sub 6}H{sub 5}PO{sub 4}H){sub 1.6}(H{sub 2}PO{sub 4}){sub 0.4}.5.1H{sub 2}O: FePP), which is composed of a multilayer alternating bilayer of phenyl groups of the phosphates and amorphous iron phosphate phase, was exfoliated in ethanol under ultrasonic irradiation. The exfoliation of FePP was recognized at 10-10,000 ppm of FePP concentration. No reaggregation and reprecipitation of the nanosheets took place for at least 6 months of standing at room temperature. The UV-vis measurements indicated that the nanosheet dispersing solution possessed a UV absorption property which would be due to the charge transfer transition of Fe-O. The FePP nanosheet-doped silica gel with UV absorption property could be prepared by sol-gel process. The Beer's plot and EDX elemental mapping analysis for Fe and P revealed that the nanosheets are homogeneously dispersed in the silica gels.
- OSTI ID:
- 21199670
- Journal Information:
- Materials Research Bulletin, Vol. 44, Issue 2; Other Information: DOI: 10.1016/j.materresbull.2008.05.016; PII: S0025-5408(08)00184-0; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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