Title Page
Contents
요약 8
Abstract 9
1. Introduction 10
2. Experimental 14
2.1. Materials 14
2.2. Sample preparation 15
2.3. Characterization 16
2.4. Photocatalytic reduction of Cr(VI) 17
3. Results and Discussion 18
3.1. Photocatalyst characterization 18
3.2. Photoreduction properties of Cr(VI)[내용없음] 5
4. Conclusion 38
5. References 39
Supporting Information 45
Table 1. Textural parameters of the samples studied in this work. 26
Table 2. First-order kinetic constant (k) for Cr(VI) photoreduction of prepared samples. 33
Figure 1. Schematic illustration of the preparation for TiO₂/MWCNT hybrid nanofiber mat. 16
Figure 2. SEM images of the TiO₂ NFs (a) before calcination and (b) after calcination; SEM images of the TMF-7 (c) before calcination and (d) after calcination; FE-TEM images of the TiO₂ NF... 20
Figure 3. (a) XRD pattern of P25, MWCNT, TiO₂ NF, and TMF-7; (b-c) Raman spectra of prepared samples at 100-1000 cm⁻¹ and 1200-1800 cm⁻¹. 23
Figure 4. (a) N₂/77K adsorption-desorption isotherms and (b) pore size distributions of P25, MWCNT, TiO₂ NF, and TMF-7. 25
Figure 5. FT-IR spectra of P25, MWCNT, TiO₂ NF, and TMF-7; (b) TGA curves of prepared samples; (c) XPS full spectra of TiO₂ NF and TMF-7; (d) Ti2p spectra of TiO₂ NF and TMF-7; (e)... 28
Figure 6. (a) UV-Vis/DRS spectra of P25, TiO₂ NF, TMF-7, and TMF-10; (b) plots of the Kubelka-Munk remission function corresponding to the spectra of the prepared samples; (c)... 35
Scheme 1. Schematic illustration of photocatalytic activity for the TiO₂/MWCNT hybrid nanofibers mats. 37