Open AccessResponse surface methodology approach for optimization of methylene blue adsorption using activated carbon from rice husk
Author(s) -
Lam Van Tan,
Hong-Tham T. Nguyen
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1091/1/012034
Subject(s) - husk , methylene blue , response surface methodology , adsorption , central composite design , activated carbon , fourier transform infrared spectroscopy , carbonization , materials science , chemical engineering , nuclear chemistry , bet theory , composite number , chemistry , chromatography , composite material , organic chemistry , botany , engineering , photocatalysis , biology , catalysis
In this study, an activated carbon (AC) material was derived from rice husk and tested for adsorption efficiency against methylene blue (MB). Response surface methodology (RSM) and central composite design (CCD) were adopted as the optimization techniques. The affordable, non-toxic and easily obtainable rice husk was carbonized and thereafter activated by KOH to produce porous AC, which was then characterized by XRD, FTIR, SEM and BET analyses. In the optimization study, the independent and collaborative effects of three experimental parameters, including dye concentration, pH solution and contact time, were taken into account. The adsorption capacities showed up to follow the direction that was well congruent with the confirmation experiments, which disclosed the robustness and viability of the optimization technique.