Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution

Abstract A novel nanocomposite (WKM) was synthesized by crosslinking Buchholzia coriacea pod (WK) and f-MWCNTs for the efficient adsorption of rhodamine B (RhB) from wastewater. The uptake of RhB onto WK and WKM was influenced by initial pH, adsorbent dose, the temperature of the adsorptive system,...

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Main Authors: James Friday Amaku, Raymond Taziwa
Format: Article
Language:English
Published: SpringerOpen 2023-11-01
Series:Applied Water Science
Subjects:
Online Access:https://doi.org/10.1007/s13201-023-02037-7
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author James Friday Amaku
Raymond Taziwa
author_facet James Friday Amaku
Raymond Taziwa
author_sort James Friday Amaku
collection DOAJ
description Abstract A novel nanocomposite (WKM) was synthesized by crosslinking Buchholzia coriacea pod (WK) and f-MWCNTs for the efficient adsorption of rhodamine B (RhB) from wastewater. The uptake of RhB onto WK and WKM was influenced by initial pH, adsorbent dose, the temperature of the adsorptive system, contact time and initial RhB concentration. Optimum experimental conditions of 100 min agitation time, 0.05 g dosage, solution pH 3.0 and 100 mg dm−3 initial concentration were obtained. The uptake of RhB onto WK and WKM was well expressed by Freundlich isotherm and a monolayer maximum uptake capacity of 67.82 mg g−1 and 87.58 mg g−1 was determined for WK and WKM, respectively. The adsorption of RhB onto WKM and WK followed the Elovich and pseudo-first-order kinetic models, respectively. Thermodynamic parameters such as ∆G°, ∆H° and ∆S° reveal that the uptake of RhB onto WK and WKM was spontaneous and endothermic. Meanwhile, WKM demonstrated excellent reusability. Hence, this study presents a nanocomposite (WKM) with robust potential for RhB removal.
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spelling doaj.art-cf414401081e4540bd5c36646593541d2023-12-10T12:27:59ZengSpringerOpenApplied Water Science2190-54872190-54952023-11-01131211410.1007/s13201-023-02037-7Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solutionJames Friday Amaku0Raymond Taziwa1Department of Applied Science, Faculty of Science Engineering and Technology, Walter Sisulu UniversityDepartment of Applied Science, Faculty of Science Engineering and Technology, Walter Sisulu UniversityAbstract A novel nanocomposite (WKM) was synthesized by crosslinking Buchholzia coriacea pod (WK) and f-MWCNTs for the efficient adsorption of rhodamine B (RhB) from wastewater. The uptake of RhB onto WK and WKM was influenced by initial pH, adsorbent dose, the temperature of the adsorptive system, contact time and initial RhB concentration. Optimum experimental conditions of 100 min agitation time, 0.05 g dosage, solution pH 3.0 and 100 mg dm−3 initial concentration were obtained. The uptake of RhB onto WK and WKM was well expressed by Freundlich isotherm and a monolayer maximum uptake capacity of 67.82 mg g−1 and 87.58 mg g−1 was determined for WK and WKM, respectively. The adsorption of RhB onto WKM and WK followed the Elovich and pseudo-first-order kinetic models, respectively. Thermodynamic parameters such as ∆G°, ∆H° and ∆S° reveal that the uptake of RhB onto WK and WKM was spontaneous and endothermic. Meanwhile, WKM demonstrated excellent reusability. Hence, this study presents a nanocomposite (WKM) with robust potential for RhB removal.https://doi.org/10.1007/s13201-023-02037-7AdsorptionThermodynamicsNanocompositeMWCNTsBuchholzia coriacea
spellingShingle James Friday Amaku
Raymond Taziwa
Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
Applied Water Science
Adsorption
Thermodynamics
Nanocomposite
MWCNTs
Buchholzia coriacea
title Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
title_full Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
title_fullStr Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
title_full_unstemmed Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
title_short Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous solution
title_sort synthesis and characterization of nanocomposites containing buchholzia coriacea pod decorated with multi walled carbon nanotubes for remediation of rhodamine b dye from aqueous solution
topic Adsorption
Thermodynamics
Nanocomposite
MWCNTs
Buchholzia coriacea
url https://doi.org/10.1007/s13201-023-02037-7
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