Book excerpt: This book provides an overview of the development and selection of functional polymers and nanomaterials for membrane development and their applications. It covers the definition, classification, and preparation of various functional polymers and nanocomposites, and highlights potential applications of functional polymers and nanomaterials in membrane technology. Details the selection of structural and functional materials, as well as material synthesis, modification, and characterization techniques Describes emerging applications of functional materials in wastewater treatment, desalination, energy, and bioremediation Includes numerous industrial case studies, practical examples and questions, providing a comprehensive introduction to the topic Discusses industrial potential, implementation, and limitations By combining aspects of both science and technology, this book serves as a useful resource for scientists and engineers working on membrane applications of materials.