Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability
Widespread application of dyes and disposal of their untreated effluents into water bodies adversely affect the ecosystem due to their complex aromatic structures and persistent nature. The present study aims to utilize the cotton stalks biochar (CSB) and its composite with zinc oxide nanoparticles...
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2021-02-01
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doaj-635f12623bc64b0d94acbbce2ca810ec2021-02-05T15:30:26ZengElsevierJournal of Saudi Chemical Society1319-61032021-02-01252101176Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stabilityMuhammad Mohsin Iqbal0Muhammad Imran1Tousif Hussain2Muhammad Asif Naeem3Abdullah A. Al-Kahtani4Ghulam Mustafa Shah5Sajjad Ahmad6Amjad Farooq7Muhammad Rizwan8Abdul Majeed9Abdul Rehman Khan10Shafaqat Ali11Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, PakistanDepartment of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, Pakistan; Corresponding author.Center for Advanced Studies in Physics, Government College University, Lahore 54000, PakistanDepartment of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, PakistanDepartment of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, PakistanDepartment of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, PakistanDepartment of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, PakistanDepartment of Environmental Sciences and Engineering Government College University, Faisalabad 38000, PakistanSugarcane Research Institute, Ayub Agricultural Research Institute, Faisalabad, PakistanDepartment of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, PakistanDepartment of Environmental Sciences and Engineering Government College University, Faisalabad 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan; Corresponding author.Widespread application of dyes and disposal of their untreated effluents into water bodies adversely affect the ecosystem due to their complex aromatic structures and persistent nature. The present study aims to utilize the cotton stalks biochar (CSB) and its composite with zinc oxide nanoparticles (CSB/ZnONPs) to evaluate for the decontamination their batch scale potential of Congo red dye from wastewater. The characterization of CSB and CSB/ZnONPs was performed with Fourier-transform infra-red (FTIR) spectroscopy, scanning electron microscopy, energy-dispersive X-ray (EDX) and point of zero charge (PZC) to get insight of their potential for the decontamination of CR. The effects of initial CR concentration (25–500 mg/L), dosage of CSB and CSB/ZnONPs (0.5–2 g/L), solution pH (2–10) and contact time (0–180 min) were evaluated on CR removal at temperature (25 ± 1.5 °C). The results disclosed that CSB/ZnONPs showed excellent adsorption potential (556.6 mg/g) in comparison with CSB (250 mg/g) and most of the other adsorbents previously studies in the literature. The equilibrium experimental data were equally explained with Freundlich and Langmuir isotherm models (R2 > 0.98) while kinetic data demonstrated the best fit with pseudo second order model. The CSB/ZnONPs composite exhibited excellent reusability (89.65%) after five adsorption/desorption cycles for the sequestration of CR from contaminated systems. The present study demonstrated that metallic nanocomposite of CSB (CSB/ZnONPs) is an excellent candidate for the cost effective and environment friendly decontamination of CR from industrial wastewater and is suggested to be considered for the decontamination of other pollutants from the wastewater.http://www.sciencedirect.com/science/article/pii/S1319610320301630Congo redDecontaminationNanocompositeAdsorptionModelingKinetics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Muhammad Mohsin Iqbal Muhammad Imran Tousif Hussain Muhammad Asif Naeem Abdullah A. Al-Kahtani Ghulam Mustafa Shah Sajjad Ahmad Amjad Farooq Muhammad Rizwan Abdul Majeed Abdul Rehman Khan Shafaqat Ali |
spellingShingle |
Muhammad Mohsin Iqbal Muhammad Imran Tousif Hussain Muhammad Asif Naeem Abdullah A. Al-Kahtani Ghulam Mustafa Shah Sajjad Ahmad Amjad Farooq Muhammad Rizwan Abdul Majeed Abdul Rehman Khan Shafaqat Ali Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability Journal of Saudi Chemical Society Congo red Decontamination Nanocomposite Adsorption Modeling Kinetics |
author_facet |
Muhammad Mohsin Iqbal Muhammad Imran Tousif Hussain Muhammad Asif Naeem Abdullah A. Al-Kahtani Ghulam Mustafa Shah Sajjad Ahmad Amjad Farooq Muhammad Rizwan Abdul Majeed Abdul Rehman Khan Shafaqat Ali |
author_sort |
Muhammad Mohsin Iqbal |
title |
Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability |
title_short |
Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability |
title_full |
Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability |
title_fullStr |
Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability |
title_full_unstemmed |
Effective sequestration of Congo red dye with ZnO/cotton stalks biochar nanocomposite: MODELING, reusability and stability |
title_sort |
effective sequestration of congo red dye with zno/cotton stalks biochar nanocomposite: modeling, reusability and stability |
publisher |
Elsevier |
series |
Journal of Saudi Chemical Society |
issn |
1319-6103 |
publishDate |
2021-02-01 |
description |
Widespread application of dyes and disposal of their untreated effluents into water bodies adversely affect the ecosystem due to their complex aromatic structures and persistent nature. The present study aims to utilize the cotton stalks biochar (CSB) and its composite with zinc oxide nanoparticles (CSB/ZnONPs) to evaluate for the decontamination their batch scale potential of Congo red dye from wastewater. The characterization of CSB and CSB/ZnONPs was performed with Fourier-transform infra-red (FTIR) spectroscopy, scanning electron microscopy, energy-dispersive X-ray (EDX) and point of zero charge (PZC) to get insight of their potential for the decontamination of CR. The effects of initial CR concentration (25–500 mg/L), dosage of CSB and CSB/ZnONPs (0.5–2 g/L), solution pH (2–10) and contact time (0–180 min) were evaluated on CR removal at temperature (25 ± 1.5 °C). The results disclosed that CSB/ZnONPs showed excellent adsorption potential (556.6 mg/g) in comparison with CSB (250 mg/g) and most of the other adsorbents previously studies in the literature. The equilibrium experimental data were equally explained with Freundlich and Langmuir isotherm models (R2 > 0.98) while kinetic data demonstrated the best fit with pseudo second order model. The CSB/ZnONPs composite exhibited excellent reusability (89.65%) after five adsorption/desorption cycles for the sequestration of CR from contaminated systems. The present study demonstrated that metallic nanocomposite of CSB (CSB/ZnONPs) is an excellent candidate for the cost effective and environment friendly decontamination of CR from industrial wastewater and is suggested to be considered for the decontamination of other pollutants from the wastewater. |
topic |
Congo red Decontamination Nanocomposite Adsorption Modeling Kinetics |
url |
http://www.sciencedirect.com/science/article/pii/S1319610320301630 |
work_keys_str_mv |
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