Open AccessRemoval of Congo Red and Procion Red Using Zn/Fe Pillared Bentonite
Author(s) -
Desnelli DESNELLI,
Wan Ryan Asri,
Hasanudin Hasanudin,
Muhammad Said,
Poedji Loekitowati Hariani
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/926/1/012051
Subject(s) - congo red , bentonite , adsorption , chemistry , chemisorption , red mud , nuclear chemistry , sorption , methylene blue , chemical engineering , catalysis , organic chemistry , photocatalysis , engineering
The process of pillarization of metal oxide Zn/Fe compounds in bentonite has been carried out. The study of adsorbent weight, pH, adsorption time, and initial concentration were investigated to get the optimum reduction of Congo red and Procion red concentration. In addition, the pseudo kinetic also determined to investigate the rate and type of adsorption. From the experiment, the optimum conditions for removal of Congo red for the adsorbent weight, pH, and adsorption time were 0.02 g, 2, 20 minutes, respectively, while for the removal of Procion red was 0.04 g, 2, 20 minutes, respectively and both of adsorbent followed the pseudo-second-order model kinetics with chemisorption mechanism. Although the optimum conditions for removal of the two dyes were similar, in fact the percentage removal of the Congo red dye was greater. In conclusion, the Zn/Fe pillared bentonite was more suitable for the removal of the Congo red than Procion red.