Title

Phase engineering of Multi-functional hybrid 1T/2H-MoS2 for photocatalytic CO2 reduction

Alternative Title

다기능 하이브리드 1T/2H-MoS2의 상 조절을 통한 광촉매 이산화탄소 전환

DGIST Authors

Dongyun Kim ; Su-Il In ; Soonhyun Kim

Advisor

인수일

Co-Advisor(s)

Soonhyun Kim

Issued Date

2021

Awarded Date

2021/02

Citation

Dongyun Kim. (2021). Phase engineering of Multi-functional hybrid 1T/2H-MoS2 for photocatalytic CO2 reduction. doi: 10.22677/thesis.200000364905

Type

Thesis

Subject

CO2 reduction, photocatalyst, phase control, heterostructure, 이산화탄소 환원, 광촉매, 상 조절, 이종구조

Table Of Contents

I. Introduction 1
1. Photocatalytic CO2 conversion 1
1.1 Photocatalyst 1
1.2 About this study 2
1.3 References 3

II. Characterization and synthesis equipment 8
2.1 Characterization 8
2.1.1 X-ray diffraction 8
2.1.2 X-ray photoelectron spectroscopy 9
2.1.3 UV-Visible spectroscopy 11
2.1.4 Raman spectroscopy 13
2.1.5 Fourier-transform infrared spectroscopy 14
2.1.6 photoluminescence spectroscopy 15
2.1.7 Electron paramagnetic resonance 16
2.1.8 Transmission electron microscopy 17
2.1.9 Energy-dispersive X-ray spectroscopy 18
2.1.10 Gas chromatograph 19
2.2 Materials synthesis 20
2.2.1 Autoclave 20
2.3 References 21

III. Multi-functional hybrid 1T/2H-MoS2 for photocatalytic CO2 reduction 23
3.1 Introduction 23
3.2 Experiment 24
3.2.1 Materials 24
3.2.2 Synthesis 24
3.2.2.1 MoS2 24
3.2.2.2 RT 25
3.2.2.3 1T/2H-MoS2@RT 25
3.2.3 Characterization 26
3.2.4 photocatalytic CO2 reduction 27
3.2.5 Apparent quantum yield (AQY) calculation 28
3.3 Results and discussion 30
3.3.1 Characterization 30
3.3.2 Photocatalytic reduction 43
3.3.3 Mechanism analysis 48
3.4 Conclusions 52
3.5 References 53

IV. Conclusion 60
4. Conclusion 60

요약문 61

URI

http://dgist.dcollection.net/common/orgView/200000364905
http://hdl.handle.net/20.500.11750/16709

DOI

10.22677/thesis.200000364905

Degree

Master

Department

Energy Science & Engineering

Publisher

DGIST

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