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Nanoleaf進入發燒排行的影片

具多維度異質結構之金屬氧化物奈米纖維應用於光催化產氫之研究

為了解決Nanoleaf的問題，作者林廷翰 這樣論述：

Table of Contents摘要 iAbstract iiiTable of Contents vList of Table viiiList of Figure ixChapter 1 Introduction1.1 Fundamental photocatalytic reaction 11.2 Photocatalysts with heterostructure 41.3 Investigation of charge transfer in heterojunction 71.4 Development of multid

imensional photocatalyst 91.5 Novel photocatalytic application of photoreforming 101.6 Motivation 12Chapter 2 Experimental Section2.1 Chemicals 142.2 Preparation of photocatalysts 152.2.1 Synthesis of 2D/1D g-C3N4/TiO2 catalyst 152.2.2 Synthesis of 0D/2D/1D Pd/g-C3N4/TiO2 cat

alyst 152.2.3 Synthesis of 1D Ag/TiO2 NF as the core template 162.2.4 Synthesis of nanostructured 0D/1D photocatalysts 162.2.5 Synthesis of palladium decorated nanostructured AT@STO photocatalysts 172.3 Instruments 182.4 Characterization 192.5 Determination of photocatalytic perfor

mance 202.6 Pretreatment of reactants for photoreforming 21Chapter 3 Results and discussion3.1 Nanoscale Multi-dimensional Pd/TiO2/g-C3N4 Catalyst 233.1.1 Crystal structure 233.1.2 Chemical structure 243.1.3 Optical properties 253.1.4 Surface features 263.1.5 Elemental compositi

on analysis 283.1.6 Photocatalytic activities for organic dye degradation and hydrogen production 303.1.7 Microstructure observation 323.1.8 Detection of reactive oxygen species (ROS) 333.1.9 Photo-assisted Kelvin probe microscopy for charge transfer investigation 353.1.11 Photoreform

ing of pulp and oxidized cellulose 373.2 0D/1D self-precipitated Ag/TiO2@STO photocatalyst with core-shell heterostructure 393.2.1 Unveiling in-situ growth STO NC/TiO2 NF on the crystal structure 393.2.2 Unveiling in-situ growth STO NC/TiO2 NF on the morphology and microstructure 403.2.3

Photocatalytic performance of TiO2@STO photocatalyst 433.2.4 Construction of self-precipitated Ag/TiO2 NF and STO with core-shell heterostructure 443.2.5 Raman scattering analysis for AT@STO photocatalysts 463.2.6 Morphology observation for AT@STO photocatalysts 483.2.7 Optical property

of AT@STO photocatalysts 503.2.8 Unveiling the surface feature of AT@STO photocatalysts by X-ray photoelectron spectroscopy 513.2.9 Fine structure investigation of AT@STO photocatalysts by synchrotron X-ray absorption spectroscopy 543.2.10 Photocatalytic hydrogen production by Ag/TiO2 and

AT@STO photocatalysts 553.2.11 Photoreforming of face mask by Pd decorated AT@STO15 56Chapter 4 Conclusion 58Reference 60Appendix 67 List of TableTable 2.1. List of chemicals used in this study. 14Table 2.2 List of instruments used in this study. 18Table 3.1. The calculated crys

tallite size of anatase TiO2 in various catalysts. 24Table 3.2. BET specific surface area (SBET), pore size, and pore volume of various g-C3N4/TiO2 catalysts. 27Table 3.3. The calculated atomic ratio. 29Table 3.4. The summarized element composition of Sr, Ag, and Ti in Ag/TiO2 and AT@STO ph

otocatalysts. 51 List of FigureFigure 1.1. Band positions and potential of photocatalysts (at pH = 7 in aqueous solutions) for a different reaction, including oxidation, reduction, and overall water splitting 2. 2Fig 1.2. The photo-induced reaction using TiO2 photocatalyst and the related reac

tion time scale 4. 3Figure 1.3. Development of heterostructure based on Z-scheme system in different generations 9. 5Figure 1.4. Scheme of photocatalysts with heterojunction in direct Z-scheme mode, (a) before contact, (b) in contact, (c) photogenerated charge carrier transfer process, (d) pho

togenerated charge carrier transfer process in Type-Ⅱ mode, and (e) photogenerated charge carrier recombination 9. 5Figure 1. 5. Scheme of photocatalyst with p–n junction: (a) before contact, (b) in contact, (c) transfer of photogenerated charge carriers in p–n junction mode, and (d) not-allowed

transfer of photogenerated charge carriers in direct Z-scheme mode 10. 6Figure 1.6. TEM images of c-CSCN-10% (A, B, E, F) and p-CSCN-25 (C, D, G, H) photodeposited with PbO2 nanoparticles (A, E, C, G) and Pt (B, F, D, H) nanoparticles. (E−H) the corresponding high-resolution TEM images 11. 7Fi

gure 1.7. The results of in-situ XPS spectra to verify the Z-scheme and type II heterojunction 12. 8Figure 1.8. Photoreforming of lignocellulose for hydrogen evolution using CdS/CdO quantum dot 45. 12Figure 3.1. (a) Synchrotron X-ray spectra and (b) Raman spectra of the various g-C3N4/TiO2 cat

alysts. 24Figure 3.2. FTIR spectra of various g-C3N4/TiO2 catalysts. 25Figure 3.3. Optical properties of various g-C3N4/TiO2 catalysts; (a) absorbance spectra; and (b) PL spectra. 26Figure 3.4. (a) Nitrogen adsorption−desorption BET isotherm curves and (b) related pore distribution curves o

f various g-C3N4/TiO2 catalysts. 28Figure 3.5. XPS spectra for C 1s orbital of g-C3N4/TiO2 catalyst with various g-C3N4 addition, (a) 1.0 wt% (b) 3.0 wt%, (c) 5.0 wt%, and (d) 10.0 wt%, and (e) pristine g-C3N4. 29Figure 3.6. (a) Photodegradation of methyl orange and (b) the comparison chart of

degradation rate; (c) photocatalytic hydrogen production and (d) the comparison chart of production rate. 31Figure 3.7. TEM images of (a) Pd/TiO2/g-C3N4 catalyst; magnified images of (b) g-C3N4 NS and (c) TiO2 NF decorated with Pd NP; HRTEM images of (d) TiO2 NF, and (e) Pd NP. 33Figure 3.8.

Surface topographic image of g-C3N4 NS. 33Figure 3.9. The photodegradation curves of (a) TiO2 NF and (b) 5.0 wt% g-C3N4/TiO2 catalyst toward the methyl orange with various scavengers, and (c) the scheme of the charge transfer mechanism. 35Figure 3.10. Topographic images of g-C3N4/TiO2 catalyst

(a-1) in dark, and (b-1) under UV irradiation; the surface potential images of g-C3N4/TiO2 catalyst (a-2) in dark, and (b-2) under UV irradiation; (c) horizontal profile for the surface potential mapping of g-C3N4/TiO2 catalyst, and related potential change (upper). 36Figure 3.11. Scheme of TEMP

O mediated oxidation for cellulose nanofibrillation and C6 group oxidation. 37Figure 3.12. Photoreforming of pulp and oxidized cellulose for hydrogen production. 38Figure 3.13. XRD patterns of TiO2@STO photocatalysts synthesized at different (a) Ti/Sr ratio and (b) reaction times. 40Figure

3.14. Morphology observation of (a) bare TiO2 NF and TiO2@STO photocatalysts with different Ti/Sr ratio: (b) 1:0.5, (c) 1:1, and (d) 1:3, the microstructure observed by high-resolution TEM of (e) bare TiO2 NF and (f) the corresponding fast Fourier transformed pattern and (g) SrTiO3 and (h) its selec

ted area electrons diffraction pattern. 42Figure 3.15. (□-1) Morphology observation of TiO2@STO photocatalysts with various reaction times and (□-2) analysis of size distribution; (a) 6, (b) 12, and (c) 24h. 43Figure 3.16. Photodegradation of methyl orange using TiO2@STO photocatalysts with va

rious Ti/Sr ratios, including 1-to-3, 1-to-1, and 1-to-0.5. 44Figure 3.17. Synchroton X-ray diffraction spectra of as-synthesized AT@STO photocatalysts with various STO composition; (a) full scan spectra, and (b) magnified spectra with a slow scan rate 0.005°·s-1. 46Figure 3.18. Raman spectra

of as-synthesized AT@STO photocatalysts with various STO compositions; (a) full scan spectra, and (b) magnified spectra ranged from 250 to 1000 cm-1. 48Figure 3.19. Morphologies observation by (□-1)TEM images and (□-2) magnified high-resolution image for (a) Ag/TiO2, (b) AT@STO05, (c) AT@STO15, (

d) AT@STO30, and (d) AT@STO45. 49Figure 3.20. The normalized absorbance spectra of AT@STO photocatalysts with various STO compositions. 50Figure 3.21. XPS spectra of (a) Sr 3d, (b) Ag 3d orbital, (c) comparison of Ag 3d orbital, and (d) atomic ratio of metallic Ag and oxidized Ag states of Ag/

TiO2 and AT@STO photocatalysts. 53Figure 3.22. XPS spectra of Ti 2p orbital of Ag/TiO2 and AT@STO15 photocatalyst. 53Figure 3.23. Corresponding Ag atomic structure analysis. (a) Ag K-edge XANES spectra, and (b) Fourier transformation of EXFAS spectra in R space of Ag/TiO2 and various AT@STO ph

otocatalysts. 54Figure 3.24. Photocatalytic performance under xenon irradiation; (a) photocatalytic hydrogen production and (b) the bar chart of hydrogen evolution rate of various AT@STO photocatalysts. 56Figure 3.25. Hydrogen production yield through photoreforming of face mask for 12 h with

different pretreatments, including hydrolysis and UV-assisted hydrolysis in various concentrations of NaOH 57