Abstract
The original Java bentonite has been improved by a new method of multi-step impregnation using over-concentrated ammonium under nature temperature. The achieved materials were characterized using SEM-EDX, XRD, FTIR, and BET analysis and then applied in cationic dye adsorption. The specific case in peak XRD analysis of ammonium impregnation was detected at 18°, and the spectra at 532.3 and 470.6 cm-1 of the FTIR analysis were detected as the ammonium vibration and oscillation bending. Surface structure analysis from SEM-EDX showed the smooth and expanded material achieved, supported by surface area analysis of BET, which described the increase of surface area materials from 61.791, 73.089, and 178.710 m2/g for the bent, bent-Na, and bent-NH, respectively. The highest adsorption capacity on bentonite impregnated by ammonium was achieved at 526.316 mg/g and 128.205 mg/g for rhodamine B and malachite green, respectively. The adsorption mechanism was feasible in endothermic and fitted to pseudo-second-order and Langmuir isotherm adsorption model. The new method of ammonium impregnation on bentonite successfully improved the adsorption ability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
