Preparation of Char-Fe3O4 Composites from Polyvinyl Chloride with Hydrothermal and Hydrothermal-Pyrolysis Carbonization Methods as Co(II) Adsorbents

https://doi.org/10.22146/ijc.29801

Muslem Muslem(1), Agus Kuncaka(2*), Taffrika Nur Himah(3), Roto Roto(4)

(1) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Bulaksumur, Yogyakarta 55281, Indonesia
(2) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Bulaksumur, Yogyakarta 55281, Indonesia
(3) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Bulaksumur, Yogyakarta 55281, Indonesia
(4) Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara BLS 21, Bulaksumur, Yogyakarta 55281, Indonesia
(*) Corresponding Author

Abstract


Char-Fe3O4 Composites have been synthetized through hydrothermal carbonization method and through hydrothermal-pyrolysis carbonization method by using polyvinylchloride as a carbon source. The products were characterized by FTIR, XRD, EDX, and TEM. The products were tested for Co(II) adsorption in water. The ability of Co(II) adsorption was studied for adsorption in different pH of the solution and its adsorption isotherm. Results showed that all products had similar hydrophilic functional groups and aliphatic carbon types. Char-Fe3O4 Composites produced by hydrothermal carbonization method (AFe-H) has more hydrophilic functional groups (C=O and –OH) than Char-Fe3O4 Composites produced by hydrothermal-pyrolysis carbonization method (AFe-P). Iron content was presented and distributed in the form of Fe3O4. Co(II) ion uptakes increased at the basic condition for all of the char-Fe3O4 Composites which were used as adsorbents. High hydrophilic functional groups in hydrothermal product composites (AFe-H) was the key factor contributing to the high adsorption ability with electrostatic interaction to the metal ion. AFe-H had the best Co(II) adsorption ability following the Langmuir isotherm model with its maximum adsorption capacity to be 0.556 mg g–1.

Keywords


polyvinylchloride; composite; hydrothermal; pyrolysis; adsorption

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References

[1] McKay, G., 2002, Dioxin characterization, formation and minimization during municipal solid waste incineration: Review, Chem. Eng. J., 86 (3), 343–368.

[2] Sadat-Shojai, M., and Bakhshandeh, G.R., 2011, Recycling of PVC wastes, Polym. Degrad. Stab., 96 (4), 404–415.

[3] Font, R., Gálvez, A., Moltó, J., Fullana, A., and Aracil, I., 2010, Formation of polychlorinated compounds in the combustion of PVC with iron nanoparticles, Chemosphere, 78 (2), 152–159.

[4] Nagai, Y., Smith, Jr., R.L., Inomata, H., and Arai, K., 2007, Direct observation of polyvinylchloride degradation in water at temperatures up to 500 °C and at pressures up to 700 Mpa, J. Appl. Polym. Sci., 106 (2), 1075–1086.

[5] Poerschmann, J., Weiner, B., Woszidlo, S., Koehler, R., and Kopinke, F.D., 2015, Hydrothermal carbonization of poly(vinyl chloride), Chemosphere, 119, 682–689.

[6] Wu, P., Du, N., Zhang, H., Yu, J., and Yang, D., 2011, Carbon nanocapsules as nanoreactors for controllable synthesis of encapsulated iron and iron oxides: Magnetic properties and reversible lithium storage, J. Phys. Chem. C., 115 (9), 3612–3620.

[7] McHenry, M.E., Majetich, S.A., Artman, J.O., DeGraef, M., and Staley, A.W., 1994, Superparamagnetism in carbon-coated Co particles produced by the Kratschmer carbon arc process, Phys. Rev. B: Condens. Matter, 49 (16), 11358–11363.

[8] Cui, X., Antonietti, M., and Yu, S.H., 2006, Structural effects of iron oxide nanoparticles and iron ions on the hydrothermal carbonization of starch and rice carbohydrates, Small, 2 (6), 756–759.

[9] Luo, L.B., Yu, S.H., Qian, H.S., and Gong, J.Y., 2006, Large scale synthesis of uniform silver@carbon rich composite (carbon and cross-linked PVA) sub-microcables by a facile green chemistry carbonization approach, Chem. Commun., 7, 793–795.

[10] Tu, Y., Peng, Z., Xu, P., Lin, H., Wu, X., Yang, L., and Huang, J., 2017, Characterization and application of magnetic biochars from corn stalk by pyrolysis and hydrothermal treatment, BioResources, 12 (1), 1077–1089.

[11] Liu, Z., Zhang, F.S., and Wu, J., 2010, Characterization and application of chars produced from pinewood pyrolysis and hydrothermal treatment, Fuel, 89 (2), 510–514.

[12] Zubir, N.A., Yacau, C., Motuzas, J., Zhang, X., and Costa, J.C.D., 2014, Structural and functional investigation of graphene oxide-Fe3O4 nanocomposites for the heterogeneous Fenton-like reaction, Sci. Rep., 4 (1), 4594.

[13] Pyrzyńska, K., and Bystrzejewski, M., 2010, Comparative study of heavy metal ions sorption onto activated carbon, carbon nanotubes and carbon-encapsulated magnetic nanoparticles, Colloids Surf., A, 362 (1-3), 102–109.

[14] Yüzer, H., Kara, M., Sabah, E., and Celik, M.S., 2008, Contribution of cobalt ion precipitation to adsorption in ion exchange dominant systems, J. Hazard. Mater., 151 (1), 33–37.

[15] Boehm, H.P., 2002, Surface oxides on carbon and their analysis: A critical assessment, Carbon, 40 (2), 145–149.

[16] Stafiej, A., and Pyrzynska, K., 2007, Adsorption of heavy metal ions with carbon nanotubes, Sep. Purif. Technol., 58 (1), 49–52.

[17] Adamson, A.W., 1990, Physical Chemistry of Surface, 5th Ed., John & Wiley Sons, Inc., New York.



DOI: https://doi.org/10.22146/ijc.29801

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