Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite

Reduced graphene oxide (rGO) and zinc oxide nanoparticles (ZnO NPs) were synthesized using modified Hummer's method and green approach from Carica papaya leaf extract (CPLE), respectively. ZnO NPs were then loaded onto rGO using a straightforward ultrasonic method to synthesize Zinc oxide-reduc...

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Main Authors: Flomo L. Gbawoquiya, Kumari Rachna, Shankara S. Narayanan, Pramod K. Singh, Shiv Shankar, Ikhwan Syafiq Mohd Noor, Muhd Zu Azhan Yahya
Format: Article
Language:English
Published: Engineering Society for Corrosion, Belgrade 2024-09-01
Series:Zaštita Materijala
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Online Access:https://www.zastita-materijala.org/index.php/home/article/view/1201
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author Flomo L. Gbawoquiya
Kumari Rachna
Shankara S. Narayanan
Pramod K. Singh
Pramod K. Singh
Shiv Shankar
Ikhwan Syafiq Mohd Noor
Muhd Zu Azhan Yahya
author_facet Flomo L. Gbawoquiya
Kumari Rachna
Shankara S. Narayanan
Pramod K. Singh
Pramod K. Singh
Shiv Shankar
Ikhwan Syafiq Mohd Noor
Muhd Zu Azhan Yahya
author_sort Flomo L. Gbawoquiya
collection DOAJ
description Reduced graphene oxide (rGO) and zinc oxide nanoparticles (ZnO NPs) were synthesized using modified Hummer's method and green approach from Carica papaya leaf extract (CPLE), respectively. ZnO NPs were then loaded onto rGO using a straightforward ultrasonic method to synthesize Zinc oxide-reduced graphene oxide nanocomposite (ZnO-rGO NC). Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and X-ray diffraction (XRD) techniques were used to characterize the synthesized nanoparticles and composite respectively. The nanocomposite was used to remove Rhodamine B dye (RhB) from aqueous solution. The effects of temperature, pH, adsorbent dosage, initial dye concentration, and contact time were investigated. Testing was done on the Freundlich and Langmuir isotherm models as well and the thermodynamics parameters were computed. The effects of ZnO NPs, rGO, and ZnO-rGO NC independently on dye removal in a comparative analysis were carried out and resulteds were presented. In an aqueous medium, the nanocomposite demonstrated high removal efficiency  as an adsorbent for removing RhB dye at 99% compared to ZnO NPs at 60%. ZnO-rGO NC proved to be an effective adsorbent compare to ZnO NPs.
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institution Kabale University
issn 0351-9465
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language English
publishDate 2024-09-01
publisher Engineering Society for Corrosion, Belgrade
record_format Article
series Zaštita Materijala
spelling doaj-art-ab8952a8e070484691cd8e3ebb7f9eca2025-08-20T03:24:30ZengEngineering Society for Corrosion, BelgradeZaštita Materijala0351-94652466-25852024-09-0165345246510.62638/ZasMat12011200Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocompositeFlomo L. Gbawoquiya0https://orcid.org/0009-0009-7775-6651Kumari Rachna1Shankara S. Narayanan2https://orcid.org/0000-0002-5092-3263Pramod K. Singh3https://orcid.org/0000-0002-3155-6621Pramod K. Singh4https://orcid.org/0000-0002-3155-6621Shiv Shankar5https://orcid.org/0000-0001-8082-8243Ikhwan Syafiq Mohd Noor6Muhd Zu Azhan Yahya7https://orcid.org/0000-0003-1129-0552Department of Environmental Sciences, Sharda School of Basic Sciences & Research, Sharda University, Greater Noida, IndiaDepartment of Environmental Sciences, Sharda School of Basic Sciences & Research, Sharda University, Greater Noida, IndiaDepartment of Physics, Sharda School of Basic Sciences & Research, Sharda University, Greater Noida, IndiaDepartment of Physics, Sharda School of Basic Sciences & Research, Sharda University, Greater Noida, IndiaDepartment of Physics, Sharda School of Basic Sciences & Research, Sharda University, Greater Noida, IndiaDepartment of Environmental Science,School of Vocational Studies and Applied Sciences, Gautam Buddha University, Greater Noida, IndiaPhysics Division, Centre of Foundation Studies for Agricultural Sciences, Universiti Putra Malaysia, UPM Serdang, 43400 Selangor Darul Ehsan, MalaysiaFaculty of Defence Science and Technology, Universiti Petrahanan Nasional Malaysia (UPNM), 57000 Kuala Lumpur, MalaysiaReduced graphene oxide (rGO) and zinc oxide nanoparticles (ZnO NPs) were synthesized using modified Hummer's method and green approach from Carica papaya leaf extract (CPLE), respectively. ZnO NPs were then loaded onto rGO using a straightforward ultrasonic method to synthesize Zinc oxide-reduced graphene oxide nanocomposite (ZnO-rGO NC). Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FESEM), and X-ray diffraction (XRD) techniques were used to characterize the synthesized nanoparticles and composite respectively. The nanocomposite was used to remove Rhodamine B dye (RhB) from aqueous solution. The effects of temperature, pH, adsorbent dosage, initial dye concentration, and contact time were investigated. Testing was done on the Freundlich and Langmuir isotherm models as well and the thermodynamics parameters were computed. The effects of ZnO NPs, rGO, and ZnO-rGO NC independently on dye removal in a comparative analysis were carried out and resulteds were presented. In an aqueous medium, the nanocomposite demonstrated high removal efficiency  as an adsorbent for removing RhB dye at 99% compared to ZnO NPs at 60%. ZnO-rGO NC proved to be an effective adsorbent compare to ZnO NPs.https://www.zastita-materijala.org/index.php/home/article/view/1201adsorption, zno nanoparticles, nanocomposites, pollutants, rhodamine b, reduced graphene oxide, carica papaya
spellingShingle Flomo L. Gbawoquiya
Kumari Rachna
Shankara S. Narayanan
Pramod K. Singh
Pramod K. Singh
Shiv Shankar
Ikhwan Syafiq Mohd Noor
Muhd Zu Azhan Yahya
Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
Zaštita Materijala
adsorption, zno nanoparticles, nanocomposites, pollutants, rhodamine b, reduced graphene oxide, carica papaya
title Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
title_full Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
title_fullStr Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
title_full_unstemmed Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
title_short Facile Synthesis and adsorptive removal of Rhodamine B dye from aqueous medium using green synthesized nanocomposite
title_sort facile synthesis and adsorptive removal of rhodamine b dye from aqueous medium using green synthesized nanocomposite
topic adsorption, zno nanoparticles, nanocomposites, pollutants, rhodamine b, reduced graphene oxide, carica papaya
url https://www.zastita-materijala.org/index.php/home/article/view/1201
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