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Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites

The present study was aimed to remove direct violet-51, reactive green-5, reactive red, and acid red dyes by novel bentonite clay nanocomposites prepared using sodium metasilicate and potassium ferricyanide. The effect of temperature, pH, adsorbent amount, contact time, and initial concentration wer...

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Main Authors: Chauhdary, Yusra, Hanif, Muhammad Asif, Rashid, Umer, Ahmad Bhatti, Ijaz, Anwar, Hafeez, Jamil, Yasir, A. Alharth, Fahad, Ahmed Kazerooni, Elham
Format: Article
Published: MDPI 2022
Online Access:http://psasir.upm.edu.my/id/eprint/101074/
https://www.mdpi.com/2073-4441/14/22/3604#:~:text=Bentonite%20has%20been%20used%20in,cation%20exchange%20capacity%20%5B12%5D.
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spelling my.upm.eprints.1010742023-06-19T03:53:20Z http://psasir.upm.edu.my/id/eprint/101074/ Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites Chauhdary, Yusra Hanif, Muhammad Asif Rashid, Umer Ahmad Bhatti, Ijaz Anwar, Hafeez Jamil, Yasir A. Alharth, Fahad Ahmed Kazerooni, Elham The present study was aimed to remove direct violet-51, reactive green-5, reactive red, and acid red dyes by novel bentonite clay nanocomposites prepared using sodium metasilicate and potassium ferricyanide. The effect of temperature, pH, adsorbent amount, contact time, and initial concentration were studied to optimize the removal process. Various adsorption isotherms (Temkin, Freundlich isotherm, Langmuir isotherm, Harkin Jura, and Dubinin Radushkevich models) and kinetic models (pseudo-first order and pseudo-second order) were applied to adsorption data to find out the best fit model, i.e., Freundlich isotherm and pseudo-second order model. The prepared samples of bentonite nanocomposites were characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Bentonite treated with sodium metasilicate and potassium ferricyanide removed 96.6% of direct violet-51 dye, bentonite treated with sodium metasilicate removed 95%, bentonite treated with potassium ferricyanide removed 94%, and pure bentonite removed 80% of the dye from the solution. MDPI 2022-11-08 Article PeerReviewed Chauhdary, Yusra and Hanif, Muhammad Asif and Rashid, Umer and Ahmad Bhatti, Ijaz and Anwar, Hafeez and Jamil, Yasir and A. Alharth, Fahad and Ahmed Kazerooni, Elham (2022) Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites. Water, 14 (22). art. no. 3604. pp. 1-20. ISSN 2073-4441 https://www.mdpi.com/2073-4441/14/22/3604#:~:text=Bentonite%20has%20been%20used%20in,cation%20exchange%20capacity%20%5B12%5D. 10.3390/w14223604
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The present study was aimed to remove direct violet-51, reactive green-5, reactive red, and acid red dyes by novel bentonite clay nanocomposites prepared using sodium metasilicate and potassium ferricyanide. The effect of temperature, pH, adsorbent amount, contact time, and initial concentration were studied to optimize the removal process. Various adsorption isotherms (Temkin, Freundlich isotherm, Langmuir isotherm, Harkin Jura, and Dubinin Radushkevich models) and kinetic models (pseudo-first order and pseudo-second order) were applied to adsorption data to find out the best fit model, i.e., Freundlich isotherm and pseudo-second order model. The prepared samples of bentonite nanocomposites were characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). Bentonite treated with sodium metasilicate and potassium ferricyanide removed 96.6% of direct violet-51 dye, bentonite treated with sodium metasilicate removed 95%, bentonite treated with potassium ferricyanide removed 94%, and pure bentonite removed 80% of the dye from the solution.
format Article
author Chauhdary, Yusra
Hanif, Muhammad Asif
Rashid, Umer
Ahmad Bhatti, Ijaz
Anwar, Hafeez
Jamil, Yasir
A. Alharth, Fahad
Ahmed Kazerooni, Elham
spellingShingle Chauhdary, Yusra
Hanif, Muhammad Asif
Rashid, Umer
Ahmad Bhatti, Ijaz
Anwar, Hafeez
Jamil, Yasir
A. Alharth, Fahad
Ahmed Kazerooni, Elham
Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
author_facet Chauhdary, Yusra
Hanif, Muhammad Asif
Rashid, Umer
Ahmad Bhatti, Ijaz
Anwar, Hafeez
Jamil, Yasir
A. Alharth, Fahad
Ahmed Kazerooni, Elham
author_sort Chauhdary, Yusra
title Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
title_short Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
title_full Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
title_fullStr Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
title_full_unstemmed Effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
title_sort effective removal of reactive and direct dyes from colored wastewater using low-cost novel bentonite nanocomposites
publisher MDPI
publishDate 2022
url http://psasir.upm.edu.my/id/eprint/101074/
https://www.mdpi.com/2073-4441/14/22/3604#:~:text=Bentonite%20has%20been%20used%20in,cation%20exchange%20capacity%20%5B12%5D.
_version_ 1769844407312318464
score 13.211869

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