Research has been carried out on the manufacture of Na-Bentonite which is used as an adsorbent for Rhodamine-B dye. Ca-Bentonite and Na-Bentonite were characterized using Fourier Transform Infra Red (FT-IR), Scanning Electron Microscope (SEM), and X-Ray Diffraction (XRD). The adsorption process of Rhodamine-B dye on the adsorbent was studied through the effect of contact time, adsorbent mass, d…