Kinetika Adsorpsi Antibiotik Tetrasiklin Oleh Komposit TiO2-Ni/PVA/Serat Sabut Pinang Teraktivasi

Authors

  • Povi Povi Tanjungpura University
  • Nelly Wahyuni Tanjungpura University
  • Titin Anita Zaharah Tanjungpura University

DOI:

https://doi.org/10.26418/jtllb.v14i1.98383

Keywords:

Adsorption kinetics, TiO2-Ni/PVA/activated areca fiber, Tetracycline, Polyvinyl alcohol (PVA)

Abstract

Environmental pollution from tetracycline antibiotics has become a serious concern because of their stability and tendency to bind to Ca2+ and other ions, leading to frequent detections in wastewater, surface water, groundwater, sludge, and sediments. One effective method to address this issue is adsorption using TiO2-Ni-based composite materials. This study aims to investigate the effect of variations in polyvinyl alcohol (PVA) mass on the adsorption capacity and rate of tetracycline in TiO2-Ni/PVA/activated areca fiber composites. TiO2-Ni/activated areca fiber was composited with PVA at mass ratios of 1, 2, and 3 and then tested in a tetracycline solution for 5 hours. Kinetic data were analyzed using first-order, second-order, pseudo-first-order, and pseudo-second-order models. The results showed that increasing PVA mass enhanced the adsorption percentage, with the highest value observed at 3 grams of PVA, reaching 12.60% after 5 hours of contact. The kinetic pattern of TiO2-Ni/PVA/activated areca fiber composites with 1 and 2 grams of PVA followed the pseudo-first-order adsorption model. In contrast, the composite with 3 grams of PVA tended to follow the first-order adsorption model.

Author Biographies

Povi Povi, Tanjungpura University

Graduate student in the Chemistry Study Program, Faculty of Mathematic and Natural Sciences

Nelly Wahyuni, Tanjungpura University

Chemistry Study Program, Faculty of Mathematic and Natural Sciences

Titin Anita Zaharah, Tanjungpura University

Chemistry Study Program, Faculty of Mathematic and Natural Sciences

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Published

2026-01-29