Adsorption of two cationic textile dyes from water with modified nanoclay: A comparative study by using central composite design

Aydin Hassani; Alireza Khataee; Semra Karaca; Melike Karaca; Murat Kiranşan

doi:10.1016/j.jece.2015.09.014

Adsorption of two cationic textile dyes from water with modified nanoclay: A comparative study by using central composite design

Aydin Hassani, Alireza Khataee^*, Semra Karaca, Melike Karaca, Murat Kiranşan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

69 Citations (Scopus)

Abstract

Comparative removal of two cationic dyes, Basic Green 4 (BG4) and Basic Yellow 28 (BY28), by chemically modified nanoclay was optimized using the central composite design. The chemically modified nanoclay was characterized by SEM, EDX, FTIR, XRD and BET techniques. The average crystal size of nanoclay was about 16.5 nm. The accuracy of the model and regression coefficients was appraised by employing the analysis of variance (ANOVA). The results revealed a good agreement between the predicted values, as obtained by the model, and the experimental values for both BG4 (R² = 0.960) and BY28 (R² = 0.927). The optimum conditions proposed by central composite design to reach the maximum dye removal through adsorption process. Under the optimum conditions, the removal efficiency of BG4 and BY28 were 82.35% and 98.78%, respectively. For BG4 and BY28, the pH of solution and adsorbent dosage were found to be the key factors that controlled dye adsorption, respectively.

Original language	English
Pages (from-to)	2738-2749
Number of pages	12
Journal	Journal of Environmental Chemical Engineering
Volume	3
Issue number	4
DOIs	https://doi.org/10.1016/j.jece.2015.09.014
Publication status	Published - Dec 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

Adsorption
Cationic dyes
Experimental design
Modified nanoclay
Optimization

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10.1016/j.jece.2015.09.014

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title = "Adsorption of two cationic textile dyes from water with modified nanoclay: A comparative study by using central composite design",

abstract = "Comparative removal of two cationic dyes, Basic Green 4 (BG4) and Basic Yellow 28 (BY28), by chemically modified nanoclay was optimized using the central composite design. The chemically modified nanoclay was characterized by SEM, EDX, FTIR, XRD and BET techniques. The average crystal size of nanoclay was about 16.5 nm. The accuracy of the model and regression coefficients was appraised by employing the analysis of variance (ANOVA). The results revealed a good agreement between the predicted values, as obtained by the model, and the experimental values for both BG4 (R2 = 0.960) and BY28 (R2 = 0.927). The optimum conditions proposed by central composite design to reach the maximum dye removal through adsorption process. Under the optimum conditions, the removal efficiency of BG4 and BY28 were 82.35% and 98.78%, respectively. For BG4 and BY28, the pH of solution and adsorbent dosage were found to be the key factors that controlled dye adsorption, respectively.",

keywords = "Adsorption, Cationic dyes, Experimental design, Modified nanoclay, Optimization",

author = "Aydin Hassani and Alireza Khataee and Semra Karaca and Melike Karaca and Murat Kiran{\c s}an",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

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doi = "10.1016/j.jece.2015.09.014",

language = "English",

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T2 - A comparative study by using central composite design

AU - Hassani, Aydin

AU - Khataee, Alireza

AU - Karaca, Semra

AU - Karaca, Melike

AU - Kiranşan, Murat

PY - 2015/12

Y1 - 2015/12

N2 - Comparative removal of two cationic dyes, Basic Green 4 (BG4) and Basic Yellow 28 (BY28), by chemically modified nanoclay was optimized using the central composite design. The chemically modified nanoclay was characterized by SEM, EDX, FTIR, XRD and BET techniques. The average crystal size of nanoclay was about 16.5 nm. The accuracy of the model and regression coefficients was appraised by employing the analysis of variance (ANOVA). The results revealed a good agreement between the predicted values, as obtained by the model, and the experimental values for both BG4 (R2 = 0.960) and BY28 (R2 = 0.927). The optimum conditions proposed by central composite design to reach the maximum dye removal through adsorption process. Under the optimum conditions, the removal efficiency of BG4 and BY28 were 82.35% and 98.78%, respectively. For BG4 and BY28, the pH of solution and adsorbent dosage were found to be the key factors that controlled dye adsorption, respectively.

AB - Comparative removal of two cationic dyes, Basic Green 4 (BG4) and Basic Yellow 28 (BY28), by chemically modified nanoclay was optimized using the central composite design. The chemically modified nanoclay was characterized by SEM, EDX, FTIR, XRD and BET techniques. The average crystal size of nanoclay was about 16.5 nm. The accuracy of the model and regression coefficients was appraised by employing the analysis of variance (ANOVA). The results revealed a good agreement between the predicted values, as obtained by the model, and the experimental values for both BG4 (R2 = 0.960) and BY28 (R2 = 0.927). The optimum conditions proposed by central composite design to reach the maximum dye removal through adsorption process. Under the optimum conditions, the removal efficiency of BG4 and BY28 were 82.35% and 98.78%, respectively. For BG4 and BY28, the pH of solution and adsorbent dosage were found to be the key factors that controlled dye adsorption, respectively.

KW - Adsorption

KW - Cationic dyes

KW - Experimental design

KW - Modified nanoclay

KW - Optimization

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Adsorption of two cationic textile dyes from water with modified nanoclay: A comparative study by using central composite design

Abstract

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Keywords

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