I . Introduction 1 1.1 Mechanochemistry 1 1.1.1 Principles of Mechanochemistry 1 1.1.2 Liquid assisted grinding 1 1.2 2D Transition Metal Dichalcogenide 2 1.2.1 Mechanical Exfoliation Methods of TMD 2 1.2.2 Cyclodextrin Assisted Aqueous TMD Exfoliation 3 1.3 Photocatalytic Hydrogen Production 5 1.3.1 Mechanism of Photocatalytic Water Splitting 5 1.3.2 Band Gap 6 1.3.3 Sacrificial Agent and Photosensitizer 7 1.3.4 MoS2 Based Photocatalyst 7 1.3.5 C60 cocatalyst 8 1.4 Piezo-Photocatalytic Effect 9 1.4.1 Piezoelectric 9 1.4.2 Piezocatalytic effect 9 1.4.3 Piezo-Photocatalytic Hydrogen Evolution 11 1.5 Volatile Organic Compounds 12 1.5.1 VOCs Removal from Wastewater 12 1.5.2 Membrane Distillation 13 1.5.3 Photothermal/Photocatalytic Membrane 13
II . Experimental 15 2.1 Materials and Methods 15 2.2 Preparation of MoS2-C60-γCD Heterostructure 15 2.3 Photocatalytic Hydrogen Production Measurements 15 2.4 Dye degradation via piezo-photocatalysis effect 16 2.5 Hydrogen production via piezo-photocatalysis effect 16 2.6 Fabrication of PVDF/MoS2-C60-γCD 16 2.7 Fabrication of PVDF/MoS2-C60-γCD/GA 16 2.8 Phenol rejection test 16
III . Results and Discussion 19 3.1 Results and Discussion of Photocatalytic Hydrogen Production 19 3.1.1 Determination of Cyclodextrin Type 19 3.1.2 Determination of Cyclodextrin Concentration 19 3.1.3 XRD data of MoS2-C60-γCD Heterostructures 21 3.1.4 Raman data of MoS2-C60-γCD Heterostructures 21 3.1.5 Electron Microscope Images of MoS2-C60-γCD Heterostructures 22 3.1.6 Photocatalytic Performance of MoS2-C60-γCD Heterostructures 23 3.2 Results and Discussion of Piezo-Photocatalytic Effect 25 3.2.1 RB Degradation Under Ultrasonic Vibration 25 3.2.2 Hydrogen Production Under Ultrasonic Vibration 26 3.3 Results and Discussion of VOCs Rejection 28 3.3.1 Characterization of the MoS2-C60-γCD Membrane 28 3.3.2 Photothermal Evaporation 29 3.3.3 VOCs Removal from Wastewater 30
IV . Conclusion 32 V . References 33 VI . Korean Summary 37