PrefaceChapter 1: CompositesEvaluation of the Mechanical and Tribological Properties of Aluminium - Based Composites Reinforced Silica Beach Sand ParticulatesEnhancing Mechanical Properties of Natural Rubber Latex Composites through Alkali-Treated Areca Husk Fibers: Eco-Friendly ReinforcementsChapter 2: PhotovoltaicsEnhancing the Optoelectronic Properties of Copper Sulphide Nanoparticles for Photovoltaic ApplicationsOptimization Study of Single Junction Structures Utilizing 1.12 eV Cs2AuBiCl6 Double Perovskite: A Lead-Free Inorganic Absorber for Single and Tandem Solar Cell ApplicationsChapter 3: Waste Treatment and Environmental RemediationCircular Materials from the Ocean Waste: Prototyping Additive Manufacturing Processes for 3D Printing with Regenerated PlasticsEvaluation of the Quality Properties of Paper Derived from Bacterial Cellulose from Banana Peels and Pineapple Peels: A Multivariate Statistical AnalysisDevelopment of Eco-Friendly Biomaterials: Recycled Thermoplastics Reinforced with Short Natural Cane and Palm FibersEvaluation of Thermal Insulation and Air Permeability of Needle-Punched Nonwovens Recycled from Waste PantyhoseThe Role of Gamma Irradiation in the Remediation of Hexachlorobenzene: A Study in 2-PropanolMagnetic Pecan Nutshell Biochar for Arsenic and Fluoride Removal: Effects of Particle Size and Pyrolysis TemperatureChapter 4: Building MaterialsTransforming Textile Wastes: Innovative Design of Sustainable Composite Materials for Thermal Insulation in BuildingsExperimental Investigation on the Physco-Mechanical and Protective Properties of Concrete Incorporating Layered Doublhydroxide (LDH)Chapter 5: Manufacturing ProcessesMachinability Indices of some Metallic Materials in Abrasive Waterjet MachiningIndustrial Asset Recovery Procedure Based on the Circular Economy - Case Study: Sliding Bearing Shoe of Tubular Ball MillIn-House Synthesis and Characterization of Vitamin C and Glycerine Based Natural Deep Eutectic Solvent