Aplikasi Asam Humat Hasil Isolasi Tanah Gambut Kalimantan sebagai Adsorben Zat Warna Naphtol Blue Black dan Indigosol Blue: Studi Perbandingan Model Kinetika dan Isoterm Adsorpsi

  • Rahmayanti M
  • Prandini M
  • Santi G
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Abstract

A comparative study of kinetic and isotherm adsorption models of naphtol blue black (NBB) and indigosol blue (IB) dyes adsorption onto humic acid (HA) isolated from Kalimantan peat soils has been carried out. Adsorption of NBB and IB in HA follows the second order Ho kinetics model, with the reaction rate constant of NBB adsorption onto HA higher than the the reaction rate constant of IB adsorption onto HA. Studi of adsorption isotherm showed that the adsorption of NBB and IB in HA follows the Langmuir isotherm model with the maximum adsorption capacity of NBB and IB in HA respectively 0.12 x 10-4 and 1.04 x 10-4 mol/g. Abstrak Studi perbandingan model kinetika dan isoterm adsorpsi zat warna naphtol blue black (NBB) dan indigosol blue (IB) pada asam humat (HA) hasil isolasi tanah gambut Kalimantan telah dilakukan. Adsorpsi NBB dan IB pada HA mengikuti model kinetika orde dua Ho, dengan konstanta laju reaksi adsorpsi NBB pada HA lebih tinggi dibandingkan konstanta laju reaksi adsorpsi IB pada HA. Studi isoterm reaksi menunjukkan bahwa adsorpsi NBB dan IB pada HA mengikuti model isoterm Langmuir dengan kapasitas adsorpsi maksimum NBB dan IB pada HA berturut-turut adalah 0,12 x 10-4 dan 1,04 x 10-4 mol/g. Kata kunci : naphtol blue black, indigosol blue, asam humat, kinetika adsorpsi, isoterm adsorpsi

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Rahmayanti, M., Prandini, M. N., & Santi, G. C. (2020). Aplikasi Asam Humat Hasil Isolasi Tanah Gambut Kalimantan sebagai Adsorben Zat Warna Naphtol Blue Black dan Indigosol Blue: Studi Perbandingan Model Kinetika dan Isoterm Adsorpsi. JST (Jurnal Sains Terapan), 6(2). https://doi.org/10.32487/jst.v6i2.891

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