Composite of Kaolin/Sodium Alginate (SA) Beads for Methylene Blue Adsorption

Irwin Tan Kai Ge(1), Muhammad Wahyu Nugraha(2), Norashikin Ahmad Kamal(3), Nonni Soraya Sambudi(4*)

(1) Chemical Engineering Department, Universiti Teknologi PETRONAS 32610, Seri Iskandar, Malaysia
(2) Chemical Engineering Department, Universiti Teknologi PETRONAS 32610, Seri Iskandar, Malaysia
(3) Faculty of Civil Engineering, Universiti Teknologi Mara Shah Alam 40450, Selangor, Malaysia
(4) Chemical Engineering Department, Universiti Teknologi PETRONAS 32610, Seri Iskandar, Malaysia
(*) Corresponding Author


Dyeing industry is one of the fast-growing industries but at the same time has also brought us a big issue on environment pollution. Adsorption processes is the most effective method in dye removal compared to other methods of wastewater treatment. In recent years, there is an increasing interest in utilizing clay material such as kaolinite as an adsorbent to remove not only inorganic but also organic molecules. In this study, composite of kaolin-sodium alginate (SA) beads was synthesized by varying the weight of kaolin from 0.5 g to 2 g. XRD, FTIR, and surface area analyses were used to characterize the kaolin; while FTIR was used to characterize the composite where the functional groups of kaolin and SA are existing. The amount of 1 g kaolin in SA could improve the adsorption of methylene blue up to 78% of removal after 8 hours. The adsorption model fits pseudo second order kinetic and Langmuir isotherm


Kaolin; Composite; Sodium alginate; Adsorption; Pollutant removal

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ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.