Cu( II ) ions removal from wastewater using starch nanoparticles ( SNPs ): An Eco‐sustainable approach

Vikas S. Hakke; Vividha K. Landge; Shirish H. Sonawane; G. Uday B. Babu; Sivakumar Manickam; Grzegorz Boczkaj

doi:10.1002/cjce.24588

Cu( II ) ions removal from wastewater using starch nanoparticles ( SNPs ): An Eco‐sustainable approach

Abstrakt

The complex structured starch particles were reduced to the nanoscale size range through hydrolysis utilizing low concentration acid assisted with ultrasound irradiation. The synthesized starch nanoparticles (SNPs) were characterized by TEM, FTIR, and XRD techniques. The synthesized SNPs possessed surface activated entities, as many cationic functional groups were confirmed through the FTIR spectrum. Also, these SNPs were effectively utilized to separate heavy Cu metal ions from the synthetic ion solution. The SNPs were characterized using FESEM, XPS and BET for the surface modification after the adsorption process. The weak electrostatic interaction between the SNP surface and Cu ion was confirmed from the XPS spectrum and energy dispersive X-ray spectroscopy. The maximum efficiency of Cu ions removal was about 93% at an optimal pH 5 and 25 mg/mL dosage. The adsorption equilibrium was obtained in 60 min. The nitrogen isotherm BET analysis of SNPs after adsorption shows a higher specific surface area of 18.552 m2/g, attributed to the interaction and presence of Cu ions on the SNP surface. The process feasibility was validated by the Langmuir isotherm model. The process exhibits pseudo-second-order adsorption kinetics and follows the Langmuir isotherm. The RL predicted by the Langmuir isotherm mechanism is 0.017, implying favorable adsorption. The process is reproducible and allows to separate heavy metal ions from the wastewater through bio-sorption effectively.

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Autorzy (6)

Vikas S. Hakke
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, TS, India
Vividha K. Landge
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, TS, India
Shirish H. Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, TS, India
G. Uday B. Babu
- Department of Chemical Engineering, National Institute of Technology Warangal, Warangal 506004, TS, India
Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri, Begawan, BE1410, Brunei Darussalam, Brunei
Grzegorz Boczkaj dr hab. inż.

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Wersja publikacji: Accepted albo Published Version
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1002/cjce.24588
Licencja: Copyright (2022 John Wiley & Sons, Inc.)

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Kategoria:

Publikacja w czasopiśmie

Typ:

artykuły w czasopismach

Opublikowano w:

CANADIAN JOURNAL OF CHEMICAL ENGINEERING nr 101, strony 1815 - 1830,
ISSN: 0008-4034

Język:

angielski

Rok wydania:

2023

Opis bibliograficzny:

Hakke V. S., Landge V. K., Sonawane S. H., Babu G. U. B., Manickam S., Boczkaj G.: Cu( II ) ions removal from wastewater using starch nanoparticles ( SNPs ): An Eco‐sustainable approach// CANADIAN JOURNAL OF CHEMICAL ENGINEERING -Vol. 101,iss. 4 (2023), s.1815-1830

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