Kochmann, Sven and Hirsch, Thomas and Wolfbeis, Otto S. (2012) The pH Dependence of the Total Fluorescence of Graphite Oxide. JOURNAL OF FLUORESCENCE, 22 (3). pp. 849-855. ISSN 1053-0509, 1573-4994
Full text not available from this repository. (Request a copy)Abstract
Graphite oxide was characterized by pH dependent excitation-emission matrices from 300 to 500 nm in excitation and from 320 to 600 nm in emission which reveal the presence of two pH steps. These are assigned to the presence of carboxy groups and phenolic hydroxy groups, respectively. Fluorescence is strongest at 470 nm excitation and 555 nm emission. The fluorescence intensity is a function of pH but not of temperature, and is not quenched by oxygen.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EMISSION MATRIX SPECTROSCOPY; GRAPHENE OXIDE; CARBON; DELIVERY; SEAWATER; DOTS; Graphite oxide; pH-dependence; Fluorescence; Excitation-emission matrix; Nano materials |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik > Chemo- und Biosensorik (Prof. Antje J. Bäumner, formerly Prof. Wolfbeis) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 15 May 2020 05:37 |
| Last Modified: | 15 May 2020 05:37 |
| URI: | https://pred.uni-regensburg.de/id/eprint/18795 |
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