Ramaraju Bendi
Lightweight, flexible and freestanding composite for water purification have recently attracted great interest. Here, we have explained chemically modified cellulose nanofibers (CNFs) with carboxylic surface functional groups by TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical) oxidation and chemically bonded the modified CNFs with various metal pillars or metal-organic frameworks to construct a robust and high-efficiency material for various Energy, Electronic and Environmental Applications. The functionalization of CNF proves to be an effective approach to control the porosity via the inter-fiber electrostatic interactions and to provide active functional groups for the chemical interaction with active components for composite film formation. As-prepared flexible film was used for Batteries, Supercapacitors, water purification, and Anti-bacterial activity.