Preparation and Characterization of iobium-Modified and Iron-Doped Titanium Oxide Nanobelts Powders
| Autor: | Hong-Syuan Lin, 林宏軒 |
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| Rok vydání: | 2015 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 103 We use two kinds of Niobium modified Iron-doped titanium oxide nanobelts powders. Nanopowders of niobium- and iron-doped titania oxide nanobelts have been synthesized by a hydrothermal method. Niobium oxide grafted Iron-doped titanium oxide nanobelts powders was prepared by sol-gel method.Using field emission scanning electron microscopy (FE-SEM), high-resolution transmission microscopy (HR-TEM) observation material morphology. X-ray diffraction (XRD) analysis material crystal structure. Thermal gravimetric analysis (TGA),Differential scanning calorimetry (DSC) evaluate the thermal stability of material. High resolution X-ray photoelectron spectrometer (HR-XPS) analysis the material element. Photoluminescence (PL) analysis the materials electron–hole recombination phenomenon. Zeta potential analysis the materials interfacial potential. Using three-electrode electrochemical measuring material photoelectrochemical properties. As a result, niobium- and iron-doped titania oxide nanobelts increases the thermal stability of the titania oxide nanobelt. It can suppressed electron-hole recombination. niobium oxide grafted iron-doped titanium oxide nanobelts can increases materials interfacial potential and suppressed electron-hole recombination at the interface. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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