Mitali Sarkar et al. 2021. Study on the Efficiency of Metal Modified Bio–Nanocomposite Bead for Removal via Retention of Some Anthraquinone Dye . Challenges and Advances in Chemical Science Vol. 3. (Aug. 2021), 60–78. DOI:https://doi.org/10.9734/bpi/cacs/v3/11054D.