Tryptophan-Based Organoclay for Aqueous Naphthol Blue Black Removal–Preparation, Characterization, and Batch Adsorption Studies J Julinawati, F Febriani, I Mustafa, F Fathurrahmi, R Rahmi, S Sheilatina, ... Journal of Ecological Engineering 24 (7), 2023 | 3 | 2023 |