Optimized removal of Reactive Navy Blue SP-BR by organo-montmorillonite based adsorbents through central composite design

F. Rasouli; S. Aber; D. Salari; A. R. Khataee

doi:10.1016/j.clay.2013.11.010

Optimized removal of Reactive Navy Blue SP-BR by organo-montmorillonite based adsorbents through central composite design

F. Rasouli, S. Aber, D. Salari, A. R. Khataee^*

^*Corresponding author for this work

University of Tabriz

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

46 Citations (Scopus)

Abstract

In this study, the Montmorillonite K10 (MMT-K10) was activated by sulfuric acid, followed by modification with cetyltrimethylammonium bromide (CTAB). The central composite design (CCD) was applied to optimize the activation process of MMT-K10. The effects of activation parameters (acid concentration, temperature, and contact time) on the decolorization efficiency of MMT-K10 (R%) were studied, and the optimum conditions were defined. The optimum values of input variables were found to be 50°C (temperature), 3.6mol/L (acid concentration) and 2.2h (contact time). The predicted and experimental values of responses were in reasonable agreement with each other (R²=0.968 and adj-R²=0.940). The activated and modified MMT-K10 was characterized by FTIR, XRD, SEM and TEM techniques. The FT-IR analysis confirmed that acid-activation and modification caused the intercalation of CTAB in MMT-K10 layers and increase in specific surface area.

Original language	English
Pages (from-to)	228-234
Number of pages	7
Journal	Applied Clay Science
Volume	87
DOIs	https://doi.org/10.1016/j.clay.2013.11.010
Publication status	Published - Jan 2014
Externally published	Yes

Keywords

Activation
Central composite design
Modification
Montmorillonite K10
Nanoclay

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10.1016/j.clay.2013.11.010

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title = "Optimized removal of Reactive Navy Blue SP-BR by organo-montmorillonite based adsorbents through central composite design",

abstract = "In this study, the Montmorillonite K10 (MMT-K10) was activated by sulfuric acid, followed by modification with cetyltrimethylammonium bromide (CTAB). The central composite design (CCD) was applied to optimize the activation process of MMT-K10. The effects of activation parameters (acid concentration, temperature, and contact time) on the decolorization efficiency of MMT-K10 (R\%) were studied, and the optimum conditions were defined. The optimum values of input variables were found to be 50°C (temperature), 3.6mol/L (acid concentration) and 2.2h (contact time). The predicted and experimental values of responses were in reasonable agreement with each other (R2=0.968 and adj-R2=0.940). The activated and modified MMT-K10 was characterized by FTIR, XRD, SEM and TEM techniques. The FT-IR analysis confirmed that acid-activation and modification caused the intercalation of CTAB in MMT-K10 layers and increase in specific surface area.",

keywords = "Activation, Central composite design, Modification, Montmorillonite K10, Nanoclay",

author = "F. Rasouli and S. Aber and D. Salari and Khataee, \{A. R.\}",

year = "2014",

month = jan,

doi = "10.1016/j.clay.2013.11.010",

language = "English",

volume = "87",

pages = "228--234",

journal = "Applied Clay Science",

issn = "0169-1317",

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TY - JOUR

T1 - Optimized removal of Reactive Navy Blue SP-BR by organo-montmorillonite based adsorbents through central composite design

AU - Rasouli, F.

AU - Aber, S.

AU - Salari, D.

AU - Khataee, A. R.

PY - 2014/1

Y1 - 2014/1

N2 - In this study, the Montmorillonite K10 (MMT-K10) was activated by sulfuric acid, followed by modification with cetyltrimethylammonium bromide (CTAB). The central composite design (CCD) was applied to optimize the activation process of MMT-K10. The effects of activation parameters (acid concentration, temperature, and contact time) on the decolorization efficiency of MMT-K10 (R%) were studied, and the optimum conditions were defined. The optimum values of input variables were found to be 50°C (temperature), 3.6mol/L (acid concentration) and 2.2h (contact time). The predicted and experimental values of responses were in reasonable agreement with each other (R2=0.968 and adj-R2=0.940). The activated and modified MMT-K10 was characterized by FTIR, XRD, SEM and TEM techniques. The FT-IR analysis confirmed that acid-activation and modification caused the intercalation of CTAB in MMT-K10 layers and increase in specific surface area.

AB - In this study, the Montmorillonite K10 (MMT-K10) was activated by sulfuric acid, followed by modification with cetyltrimethylammonium bromide (CTAB). The central composite design (CCD) was applied to optimize the activation process of MMT-K10. The effects of activation parameters (acid concentration, temperature, and contact time) on the decolorization efficiency of MMT-K10 (R%) were studied, and the optimum conditions were defined. The optimum values of input variables were found to be 50°C (temperature), 3.6mol/L (acid concentration) and 2.2h (contact time). The predicted and experimental values of responses were in reasonable agreement with each other (R2=0.968 and adj-R2=0.940). The activated and modified MMT-K10 was characterized by FTIR, XRD, SEM and TEM techniques. The FT-IR analysis confirmed that acid-activation and modification caused the intercalation of CTAB in MMT-K10 layers and increase in specific surface area.

KW - Activation

KW - Central composite design

KW - Modification

KW - Montmorillonite K10

KW - Nanoclay

UR - https://www.scopus.com/pages/publications/84891151357

U2 - 10.1016/j.clay.2013.11.010

DO - 10.1016/j.clay.2013.11.010

M3 - Article

AN - SCOPUS:84891151357

SN - 0169-1317

VL - 87

SP - 228

EP - 234

JO - Applied Clay Science

JF - Applied Clay Science

ER -

Optimized removal of Reactive Navy Blue SP-BR by organo-montmorillonite based adsorbents through central composite design

Abstract

Keywords

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