Studies on Synthesis, Characterization, and Adsorption of Cationic Dyes from Aqueous Solutions Using Magnetic Composite Material from Natural Clay in Central Kalimantan, Indonesia

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I Made Sadiana, Karelius Karelius, Retno Agnestisia, Abdul Hadjranul Fatah


Clay is a natural material from crystalline silicate with layered structures, has high cation exchange capacity, and large surface area. These advantages can be used as an adsorbent for the removal of contaminants in aqueous solutions, such as heavy metals and dyes. In Indonesia, clays from Java, Sulawesi, and Sumatra islands have been used as adsorbent, furniture, and construction materials. Due to limited information about basic characteristics of clay from Kalimantan, this clay has not been utilized well. Therefore, natural clay from Kalimantan, especially in Central Kalimantan, was used as adsorbent of cationic dyes in this present study. However, the clay has difficulty for separating the solid phase from aqueous solution after adsorption process. To solve this problem, combining clay with magnetic material was opted. The objectives of this study are to synthesize the magnetic composite material from natural clay by coprecipitation method and to characterize the synthesized magnetic composite material using an x-ray diffraction method, transmission electron microscopy, and vibrating sample magnetometer. The adsorption properties of the synthesized magnetic composite material were evaluated using rhodamine B and methylene blue dyes in aqueous solution. Before magnetic composite material was synthesized, the clay was previously being activated for removing impurities. The magnetic material formed in the structure of clay had magnetite with particle size of 2.75 nm and the magnetization value of 24.91emu/g. The adsorption capacities of natural clay, activated clay, and magnetic composite of clay in rhodamine B were 34.29, 76.27, and 81.46 mg/g, respectively, while in methylene blue were 30.25, 83.92, and 133.90 mg/g, respectively. These results suggested that magnetic composite of clay can increase the adsorption capacities against dyes and accelerate the separation of the adsorbent solid phase from aqueous solution with largest adsorption capacity on methylene blue dye.


clay, magnetic composite, coprecipitation, adsorption, and cationic dye


Amarullah, D., Margani, Saksono, Priatna, Priono and Sudiro. (2002). Inventarisasi dan evaluasi endapan batubara kabupaten Barito Selatan dan Barito Utara Pprovinsi Kalimantan Tengah. Kolokium Direktorat Inventarisasi Sumber Daya Mineral, (DIM) TA.

Alshameri, A., He, H., Zhu, J., Xi, Y., and Tao, Q. (2017). Adsorption of ammonium by different natural clays minerals: Characterization, kinetics and adsorption isotherms. Applied Clay Science. In press, corrected proof.

Bentahar, S., Dbik, A., El Khomri, A., El Messaoudi, N., and Lacherai, A. (2017). Adsorption of methylene blue, crystal violet and congo red from binary and ternary systems with natural clay. Kinetic, isotherm, and thermodynamic. Journal of Environmental Chemical Engineering, 5, 5921-5932.

Chen, L., Zhou, C, H., Fiore, S., Tong, D, S., and Yu, W, H. (2016). Functional magnetic nanoparticle/clay mineral nanocomposites: preparation, magnetism and versatile applications. Applied Clay Science, 127–128, 143-163.

Cottet, L., Almeida, N. Naidek, M.F. Viante, and Debacher. (2014). Adsorption characteristics of montmorillonite clay modified with iron oxide with respect to methylene blue in aqueous media. Applied Clay Science, 95, 25-31.

Georgescu, A., Nardou, F., Zichil, V., and Nistor. I. (2018). Adsorption og lead(II) ions from aqueous solutions onto Cr-pillared clays. Applied Clay Science, 152, 44-50.

Gładysz-Płaska, A., EGrabias, E., and Majdan, M. (2017). Simultaneous adsorption of uranium(VI) and phosphate on red clay. Progress in Nuclear Energy. In press, corrected proof.

Koyuncu, H. (2007) Adsorption kinetics of 3-hydroxybenzaldehyde on native and activated bentonite. Applied Clay Science, 38, 279–287.

Lee, S. J., Jeoung, J. R., Shin, S.C., Kim, J. C & Kim, J. D. (2004). Synthesis and characterization of superparamagnetic magnetite nanoparticles prepared by Coprecipitation Technique. Magnetism, Magnetic Mater, 282, 147-150.

Musso, Parolo, Pettinari & Francisca, F. (2014). Cu(II) And Zn(II) adsorption capacity of three different clay liner materials. Journal of Environmental Management, 146, 50-58.

Nakhli, A., Goletti, M., Mbouga, M., Bergaoui, M., Khalfaoui, M., and Huguet, P. (2018). Modeling of essential oils adsorption onto clay towards a better understanding of their interactions. Journal of Molecular Liquids, 249, 132-143.

Ortega, E., Ramos & Flores-Cano. (2013). Binary adsorption of heavy metals from aqueous solution onto natural clays. Chemical Engineering Journal, 225, 535–546.

Purwamargapratala, Y., Yusuf, S and Ridwan. (2013). Degradasi metilen biru dengan komposit TiO2SiO2Fe3O4. Seminar Nasional IX SDM Teknologi Nuklir Yogyakarta, ISSN 1978-0176.

Santos, Rui and Boaventura. (2016). Adsorption of cationic and anionic azo dyes on sepiolite clay: Equilibrium and kinetic studies in batch mode. Journal of Environmental Chemical Engineering, 4, 1473–1483.

Sinta, I, N., Suarya, P, and Santi. (2015). Adsorpsi ion fosfat oleh lempung teraktivasi asam sulfat (H2SO4). Jurnal Kimia 9, 2, 217-225.

Trabelsi, W and Tlili, A. (2017). Phosphoric acid purification through different raw and activated clay materials (Southern Tunisia). Journal of African Earth Sciences, 129, 647-658.

Zhao, Y., Qi, Chena, Q & Zhangb. (2015). Behavior of Cr(VI) removal from wastewater by adsorption onto hcl activated Akadama clay. Journal of the Taiwan Institute of Chemical Engineers, 50, 190–197.


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Jurnal Ilmiah Kimia
Department of Chemistry, Faculty of Mathematics and Natural Sciences,
Universitas Jenderal Soedirman, Purwokerto, Indonesia

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