Title

Synergistic Interface Engineering of Cocatalyst and Reduced 2D TiO2 for Efficient Photocatalytic CO2 to CH4 Conversion

Alternative Title

CO2에서 CH4으로의 효율적인 광화학적인 전환을 위한 조촉매와 환원된 2D TiO2의 시너지적 계면 공학

DGIST Authors

Kyu Seok Lee ; Su-Il In ; Soonhyun Kim

Advisor

인수일

Co-Advisor(s)

Soonhyun Kim

Issued Date

2024

Awarded Date

2024-08-01

Citation

Kyu Seok Lee. (2024). Synergistic Interface Engineering of Cocatalyst and Reduced 2D TiO2 for Efficient Photocatalytic CO2 to CH4 Conversion. doi: 10.22677/THESIS.200000802421

Type

Thesis

Description

surface oxygen vacancy, ternary junction, CO2 photoreduction, morphology tuning, 2-dimensional TiO2, hydroxyl group

Table Of Contents

1. Introduction 1
1.1. Research Background 1
1.2. Photocatalytic CO2 reduction 1
1.3. About this study 3
1.4. References 4
2. Characterization and analysis equipment 5
2.1. Characterization 5
2.1.1. High-resolution transmission electron microscopy (HR-TEM) 5
2.1.2. Brunauer-Emmett-Teller (BET) 6
2.1.3. X-ray diffraction (XRD) 7
2.1.4. Raman spectroscopy 9
2.1.5. Photoluminescence spectroscopy (PL) 10
2.1.6. UV-Visible spectroscopy (UV-VIS) 12
2.1.7. X-ray photoelectron spectroscopy (XPS) 14
2.1.8. Electron Paramagnetic Resonance (EPR) 16
2.1.9. Gas chromatograph (GC) 18
2.1.10. Fourier-transform infrared spectroscopy (FTIR) 19
2.2. References 20
3. Synergistic Interface Engineering of Cocatalyst and Reduced 2D - TiO2 for Efficient Photocatalytic CO2 to CH4 Conversion 22
3.1. Introduction 22
3.2. Experiment 23
3.2.1. Materials 23
3.2.2. Synthesis of 2D-RT 24
3.2.3. Synthesis of G/2D-RT 24
3.2.4. Synthesis of Cu/G/2D-RT 25
3.2.5. Characterization 26
3.2.6. Solar-light-driven catalytic CO2 reduction with H2O vapors 26
3.2.7. Apparent Quantum Yield (AQY) calculation 27
3.3. Results and discussion 28
3.4. Conclusions 45
3.5. References 46
4. Acknowledgement 50
5. 요 약 문 51

URI

http://hdl.handle.net/20.500.11750/57628
http://dgist.dcollection.net/common/orgView/200000802421

DOI

10.22677/THESIS.200000802421

Degree

Master

Department

Department of Energy Science and Engineering

Publisher

DGIST

Show Full Item Record