Research has been carried out on the adsorption of procion red, kongo red and malachite green dyes using rambutan peel bioadsorbent. The purpose of this study was to characterize the bioadsorbent of rambutan peel using the adsorption method. The results characterization of FT-IR, XRD, SEM-EDS, BET and TG-DTA showed is the presence of specific cellulose compounds in rambutan peel, rambutan peel …