主题词：Advanced Photocatalysis Techniques; Regional Socio-Economic Development Trends; Solar-Powered Water Purification Methods; Supercapacitor Materials and Fabrication; Smart Cities and Technologies; biodegradable polymer synthesis and properties; Advancements in Battery Materials; Membrane Separation Technologies; Advanced Sensor and Energy Harvesting Materials; Recycling and Waste Management Techniques; Solar Thermal and Photovoltaic Systems; Extraction and Separation Processes; Diverse Scientific and Economic Studies; Human auditory perception and evaluation; Educational Robotics and Engineering; Surface Modification and Superhydrophobicity; Water-Energy-Food Nexus Studies; Sociopolitical Dynamics in Nepal; Microplastics and Plastic Pollution; Legal case studies and regulations; Hybrid Renewable Energy Systems; Nanoparticles: synthesis and applications; Energy and Environment Impacts; TiO2 Photocatalysis and Solar Cells; Advanced Battery Materials and Technologies