Open AccessCHARACTERIZATION AND POTENTIAL SUITABILITY OF SIMAROUBA GLAUCA SEED SHELL LIGNOCELLULOSIC BIOMASS AS ADSORBENT OF BASIC DYES FROM AQUEOUS SOLUTIONS
Author(s) -
Jeyagowri Balakrishnan,
Y. Thiagarajan
Publication year - 2021
Publication title -
cellulose chemistry and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.302
H-Index - 32
eISSN - 2457-9459
pISSN - 0576-9787
DOI - 10.35812/cellulosechemtechnol.2021.55.60
Subject(s) - chemistry , freundlich equation , adsorption , langmuir , aqueous solution , malachite green , nuclear chemistry , fourier transform infrared spectroscopy , langmuir adsorption model , methylene blue , rhodamine b , lignocellulosic biomass , chemical engineering , organic chemistry , cellulose , photocatalysis , engineering , catalysis
The present study investigates the potential of Simarouba glauca seed shell powder as a cost-effective adsorbent for the removal of the cationic dyes Malachite green (MG), Methylene blue (MB) and Rhodamine B (RB) from aqueous solutions. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD), as well as by Brunauer–Emmett–Teller (BET) and elemental (CHNS) analyses. Batch mode adsorption studies were carried out varying the experimental conditions, such as initial dye concentration and contact time, adsorbent dose, pH and particle size, in order to assess the adsorbent capacity for the removal of cationic dyes from wastewater. The experimental data were analysed using the Langmuir, Freundlich, Temkin and Dubinin–Radushkevich isotherms. The data fitted well the Langmuir model for the dyes studied. Kinetic data were analysed using the pseudo-first order, pseudo-second order, intraparticle diffusion and Boyd models. The experimental results showed that the pseudo-second order model fitted well.