<p>This study highlights the critical role of green biomaterials in enabling energy-efficient, environmentally responsible network infrastructure by examining the integration of cutting-edge 5G and emerging 6G communication systems with sustainable materials and designs. The need to meet the demanding performance requirements of next-generation systems while addressing the environmental issues presented by traditional communication hardware is the driving force. To demonstrate how these technologies can work together to improve sustainable 6G network design, the paper also examines conceptual frameworks for integrating energy harvesting, biodegradable hardware, and intelligent reconfigurable surfaces (RIS) using bio-composites. The study identifies key performance objectives for the 6G system. Furthermore, presents design concepts for integrating bio-composite-based intelligent surfaces and energy-harvesting modules into upcoming 6G networks, providing feasible paths toward greener communication systems. Moreover, the study concludes that incorporating sustainable materials into wireless infrastructure can meet the high-performance requirements of next-generation networks while addressing pressing environmental issues. By allowing the use of renewable and biodegradable components, this promotes the circular economy and offers substantial opportunities to reduce carbon footprints and extend device lifespans. Future research should focus on thorough lifecycle assessments, scalable implementation strategies designed for actual 6G deployments, and experimental validation of bio-composite-based components to realize this vision. The results show that using sustainable materials can reduce carbon footprints, increase device longevity, and ensure compliance with strict 6G performance standards. To achieve practical sustainability in 6G networks, this study emphasizes the importance of experimental validation, lifecycle assessments, and scalable implementation strategies.</p>