Easy separable, floatable, and recyclable magnetic-biochar/alginate bead as super-adsorbent for adsorbing copper ions in water media

Dhirar Ben Salem¹, Abdelkader Ouakouak², Fouzia Touahra³, Noureddine Hamdi⁴, Abdelazeem S Eltaweil⁵, Asad Syed⁶, Ramaraj Boopathy⁷, Hai Nguyen Tran⁸

Affiliations

¹ Research Laboratory in Subterranean and Surface Hydraulics, University of Biskra, PO Box 145, Biskra 07000, Algeria.
² Hydraulic and Civil Engineering Department, University of El Oued, PO Box 789, El Oued 39000, Algeria.
³ Research Centre in Analytical Chemistry and Physics (CRAPC), BP 248, Algiers 16004, Algeria.
⁴ Higher Institute of Sciences and Techniques of Waters, University of Gabès, Zrig 6072, Tunisia; Composite Materials and Clay Minerals Laboratory, National Center for Research in Materials Sciences, Technopole Borj Cedria, Soliman, Tunisia.
⁵ Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
⁶ Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia.
⁷ Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA. Electronic address: ramaraj.boopathy@nicholls.edu.
⁸ Center for Energy and Environmental Materials, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang City 550000, Viet Nam.

PMID: 37244306
DOI: 10.1016/j.biortech.2023.129225

Easy separable, floatable, and recyclable magnetic-biochar/alginate bead as super-adsorbent for adsorbing copper ions in water media

Dhirar Ben Salem et al. Bioresour Technol. 2023 Sep.

. 2023 Sep:383:129225.

doi: 10.1016/j.biortech.2023.129225. Epub 2023 May 25.

Authors

Dhirar Ben Salem¹, Abdelkader Ouakouak², Fouzia Touahra³, Noureddine Hamdi⁴, Abdelazeem S Eltaweil⁵, Asad Syed⁶, Ramaraj Boopathy⁷, Hai Nguyen Tran⁸

Affiliations

¹ Research Laboratory in Subterranean and Surface Hydraulics, University of Biskra, PO Box 145, Biskra 07000, Algeria.
² Hydraulic and Civil Engineering Department, University of El Oued, PO Box 789, El Oued 39000, Algeria.
³ Research Centre in Analytical Chemistry and Physics (CRAPC), BP 248, Algiers 16004, Algeria.
⁴ Higher Institute of Sciences and Techniques of Waters, University of Gabès, Zrig 6072, Tunisia; Composite Materials and Clay Minerals Laboratory, National Center for Research in Materials Sciences, Technopole Borj Cedria, Soliman, Tunisia.
⁵ Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt.
⁶ Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh 11451, Saudi Arabia.
⁷ Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA. Electronic address: ramaraj.boopathy@nicholls.edu.
⁸ Center for Energy and Environmental Materials, Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang City 550000, Viet Nam.

PMID: 37244306
DOI: 10.1016/j.biortech.2023.129225

Abstract

This work aimed to develop innovative material by combining properties of magnetic-biochar (derived from peanut shells) and hydrogel bead (MBA-bead) and apply it for adsorbing Cu²⁺ in water. MBA-bead was synthesized by physical cross-linking methods. Results indicated that MBA-bead contained ∼90% water. The diameter of each spherical MBA-bead was approximately 3 mm (wet form) and 2 mm in (dried form). Its specific surface area (262.4 m²/g) and total pore volume (0.751 cm³/g) were obtained from nitrogen adsorption at 77 K. X-ray diffraction data confirmed Fe₃O₄ presented in magnetic-biochar and MBA-bead. Its Langmuir maximum adsorption capacity for Cu²⁺ was 234.1 mg/g (30 °C and pH_eq 5.0). The change in standard enthalpy (ΔH°) of the adsorption was 44.30 kJ/mol (dominant physical adsorption). Primary adsorption mechanisms were complexation, ion exchange, and Van der Waals force. Laden MBA-bead can be reused several cycles after desorbing with NaOH or HCl. The cost was estimated for producing PS-biochar (0.091 US$/kg), magnetic-biochar (0.303-0.892 US$/kg), and MBA-bead (1.369-3.865 US$/kg). MBA-bead can serve as an excellent adsorbent for removing Cu²⁺ ions from water.

Keywords: Adsorption mechanism; Cost estimation; Heavy metal; Hydrogel bead; Magnetic biochar; Water treatment.

PubMed Disclaimer

Conflict of interest statement

Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

MeSH terms

Actions
Actions
Actions
Actions
Actions
Actions
Actions
Actions
Actions

Substances

Actions
Actions
Actions
Actions
Actions
Actions
Actions

LinkOut - more resources

Full Text Sources
- Elsevier Science

Save citation to file

Email citation

Add to Collections

Add to My Bibliography

Your saved search

Create a file for external citation management software

Your RSS Feed

Easy separable, floatable, and recyclable magnetic-biochar/alginate bead as super-adsorbent for adsorbing copper ions in water media

Affiliations

Easy separable, floatable, and recyclable magnetic-biochar/alginate bead as super-adsorbent for adsorbing copper ions in water media

Authors

Affiliations

Abstract

Conflict of interest statement

MeSH terms

Substances

LinkOut - more resources

Full Text Sources