Part 1 Historical Background of Microwave Environmental Protection Technology, and Microwave/photo Hybrid Technology.- Chapter 1 Historical Overview of Microwave Technologies for Environmental Cleanup and Microwave Electrodeless Discharge Lamps.- Chapter 2 Photocatalysis /Microwave hybrid method for Wastewater Treatments.- Part 2 Recycling for Plastic, Biomass and Metal.- Chapter 3 Designing Self-Degrading Polymeric Materials with Expiration Dates for Sustainable Plastic Management using Photocatalysts.- Chapter 4 Plastic Waste Conversion into Monomers Using Microwaves.- Chapter 5 Synergistic Microwave Recycling of Plastics and Biomass into Hydrogen and Carbon Nanotubes.- Chapter 6 Mechanistic and Advances in Applied Microwave-Induced Pyrolysis for Valuable Metal Recovery from E‑waste.- Chapter 7 Application of Microwave heating to metal production and recycling.- Chapter 8 Efficient Recycling Techniques for Metal Wastes.- Part 3 Energy field for Hydrogen, Solar Cells and CO₂ Conversion.- Chapter 9 Low-Carbon Chemical Looping Hydrogen Production: Fundamentals, Solar- and Electromagnetic-Integrated Systems, and Applications.- Chapter 10 Hydrogen Production via Conversion of Organics or Photocatalytic Reforming.- Chapter 11 Production and Storage of Hydrogen Enhanced by Microwave Radiation.- Chapter 12 Perovskite Solar Cells: A New Paradigm in the Energy Sector.- Chapter 13 Heterogeneous photocatalysis for light-driven reduction of CO₂ to fuels and organic compounds.- Part 4 Water Treatment and Environmental Remediation.- Chapter 14 Microwave-induced in-Liquid Plasma Method and Its Application to Water Treatment.- Chapter 15 Progressive Catalytic Strategies and Gamma Irradiation Techniques for Sustainable Industrial Wastewater Remediation.