Water pollution is a great threat to humanity nowadays. Scientists are searching for new natural materials that can act as absorbents to remove non-biodegradable pollutants. Dye waste from textile, paint and leather industries are a great danger to aquatic system. Nowadays activated charcoal is widely used for this purpose, but the high cost impose some limitations to its wide use. Cellulose acetate was synthesized from a waste material, used cigarette bud, by acid treatment method. The sample obtained was characterized using Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). Cellulose acetate membranes were prepared and utilized for dye absorption studies using UV-visible spectroscopy and colorimeter using pH controlled solutions of methylene blue and malachite green.
K. Nair, Sreedha Sambhudevan, and Balakrishnan Shankar, “Synthesis, Characterization and Dye Absorbing Properties of Cellulose Acetate from used Cigarette Buds”, Materials Today: Proceedings, vol. 18. pp. 5006 - 5011, 2019.