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HomeKey Engineering MaterialsKey Engineering Materials Vol. 814Congo Red Dye Removal Using Ca-Al Layered Double...

Congo Red Dye Removal Using Ca-Al Layered Double Hydroxide: Kinetics and Equilibrium

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Abstract:

This In this study, the Ca-Al layered double hydroxide was used as a potential adsorbent for the removal of Congo red from aqueous solutions. The effects of Initial concentration and contact time on the adsorption properties of Congo red by Ca-Al LDHs were studied. The removal rate of Conge red reached to 59.416 mg/g under room temperature with 0.2g of adsorbent, initial concentration of 50 ppm, adsorption time of 210 min, shaking speed of 90r/min. The experimental equilibrium data for the removal of Congo red were evaluated by various isotherm models. The pseudo-second-order kinetic models were found to fit the adsorption kinetics, and the equilibrium data were appropriately fitted to Langmuir and Freundlich model adsorption isotherm.

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Advanced Materials and Engineering Materials VIII

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Periodical:

Key Engineering Materials (Volume 814)

Pages:

463-468

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.814.463

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Online since:

July 2019

Authors:

Hong Tham Nguyen Thi, Duy Chinh Nguyen, Thi Thuong Nguyen, Van Thuan Tran, Huu Vinh Nguyen, Long Giang Bach, Dai Viet N-Vo, Dai Hai Nguyen, Doan Van Thuan, Do Trung Sy, Trinh Duy Nguyen*

Keywords:

Adsorption, Congo Red Dye, Equilibrium, Kinetic Studies, Layered Double Hydroxides, Thermodynamic

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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