1. JCCT
  2. All Volumes and Issues
  3. Volume 15, Number 3, 2021
  4. Synthesis, Characterization and Application of a Diatomite-Based Composite for the Adsorption of Anionic Dyes in Aqueous Solutions

Synthesis, Characterization and Application of a Diatomite-Based Composite for the Adsorption of Anionic Dyes in Aqueous Solutions

JCCT.
2021;
Volume 15, Number 3
: pp. 377–388
https://doi.org/10.23939/chcht15.03.377
Authors:
  1. Sadek Chentouf
  2. Smail Kacha
  3. Réda Marouf
  4. Fouad Mekhalef Benhafsa
  5. Abdelkader Leboukh
  6. Ahmed Yahiaoui
1
Laboratory of Materials, Applications and Environment, Mustapha Stambouli University
2
Laboratory of Advanced Materials and Physicochemistry for the Environment and Health (MAPES), Djillali Liabes University
3
Laboratory of Materials, Applications and Environment, Mustapha Stambouli University
4
Laboratory of Advanced Materials and Physicochemistry for the Environment and Health (MAPES), Djillali Liabes University, Scientific and Technical Research Center on Physical and Chemical Analyses (CRAPC)
5
Laboratory of Advanced Materials and Physicochemistry for the Environment and Health (MAPES), Djillali Liabes University
6
Laboratory of Organic Chemistry, Macromolecular and Materials, Mustapha Stambouli University

Synthesis, characterization and application of the polyaniline-diatomite (PAD) composite in the adsorption of Reactive Red 120 (RR 120) and Acid Blue (AB) dyes were carried out. The composite was prepared by the in situ polymerization of aniline. Mass of purified diatomite was mixed with a solution containing aniline dissolved in 2M hydrochloric acid at room temperature. The solid obtained was characterized using the SEM, XRD and FTIR analyses. The kinetic adsorption of dyes was described using the pseudo-second order kinetic model. The adsorption isotherm of the RR 120 dye can be fitted by the Freundlich adsorption isotherm model. However, the adsorption isotherm of the AB dye can be better fitted by the BET model.

adsorption
anionic dyes
characterization
diatomite
polyaniline
synthesis
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