Pillarization of Bentonite using Fe3+/Ti4+ and Its Application for Congo Red and Direct Violet Removal

Muhammad Said, Riza Antini, Tarmizi Taher, Aldes Lesbani

2019

Abstract

Bentonite was pillarized by using Fe3+/Ti4+ metal oxide ratio 2:1 and 1:2. The pillarization product was characterized by using XRD analysis and FT-IR spectrophotometer. XRD diffractogram showed that the optimal product was obtained at Fe3+/Ti4+ ratio 2:1. At this ratio, basal spacing of bentonite layer is 15 Å while bentonite with ratio 1:2 has basal spacing 12.86 Å. Bentonite 2:1 ratio was applied on Congo red adsorption. The isotherm adsorption was calculated and followed Freundlich model having adsorption rate (k) 0.0008 (min-1) for Congo red and 0.00045 (min-1) for direct violet. The adsorption capacity (Qe) of Congo red at 70 °C is 68 mole/g that larger than 51 mole/g for direct violet. The adsorption energy (E) of Congo red at 70°C is 4.90 kJ/mol also higher then direct violet with 1.01 kJ/mol. The enthalpy (ΔH) and entropy (ΔS) is decreased with increase of Congo red and direct violet concentration. The optimum pH was obtained at 3 whereas the maximum amount of Congo red adsorbed is 90.60 mg/L. Direct violet shows maximum amount of adsorption at pH 4 with 79.61 mg/L

Paper Citation

in Harvard Style

Said M., Antini R., Taher T. and Lesbani A. (2019). Pillarization of Bentonite using Fe3+/Ti4+ and Its Application for Congo Red and Direct Violet Removal.In Proceedings of the 1st International Conference on Chemical Science and Technology Innovation - Volume 1: ICOCSTI, ISBN 978-989-758-415-2, pages 79-88. DOI: 10.5220/0008854400790088

in Bibtex Style

@conference{icocsti19,
author={Muhammad Said and Riza Antini and Tarmizi Taher and Aldes Lesbani},
title={Pillarization of Bentonite using Fe3+/Ti4+ and Its Application for Congo Red and Direct Violet Removal},
booktitle={Proceedings of the 1st International Conference on Chemical Science and Technology Innovation - Volume 1: ICOCSTI,},
year={2019},
pages={79-88},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008854400790088},
isbn={978-989-758-415-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 1st International Conference on Chemical Science and Technology Innovation - Volume 1: ICOCSTI,
TI - Pillarization of Bentonite using Fe3+/Ti4+ and Its Application for Congo Red and Direct Violet Removal
SN - 978-989-758-415-2
AU - Said M.
AU - Antini R.
AU - Taher T.
AU - Lesbani A.
PY - 2019
SP - 79
EP - 88
DO - 10.5220/0008854400790088