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Biochar and Biochar Magnetite of Spirulina platensis to Remove Cadmium Ions from Aqueous Solutions.

Authors :
Mushtaq, Khitam J.
Alzurfi, Sadiq K. L.
Source :
Egyptian Academic Journal of Biological Sciences, C Physiology & Molecular Biology. 2023, Vol. 15 Issue 2, p471-485. 15p.
Publication Year :
2023

Abstract

An investigation was conducted using both biochar and magnetic biochar. Have been utilized as an effective, affordable, secure, and ecologically friendly way to get rid of heavy metals like cadmium. Microalgae from Spirulina platensis were used to make biochar by burning it. We mix biochar with hydrogen peroxide to create functional groups on the surface by using ice bath sonication which is biochar activate (BC). Also, magnetic biochar (MBC) has been prepared by mixing biochar activated with Fe3O4 (2:1 mole ratio) respectively. Two concentrations of aqueous solutions (5 ppm and 10 ppm) were mixed with two weights of biochar and magnetic biochar (0.1 and 0.5 g) for 10, 20, and 40 minutes. The concentration of cadmium (5 ppm) with 0.5 g of biochar (BC) after 40 minutes removed 97.58% of cadmium ion from the aqueous solution. On the other hand, magnetic biochar (MBC) (0.5 g) with 5 ppm of cadmium solution after 40 minutes could remove 100% of cadmium ions. We character BC, MBC, and biochar treated with cadmium ions by using FTIR, FESEM, EDX, and XRD studies. These analytical results indicate that the effective groups in biochar and magnetic biochar can adsorb heavy metals by carboxyl, hydroxyl, and carbonyl groups. The findings of the investigation on magnetic biochar revealed that, in addition to carbonyl, hydroxyl, and carboxylic groups, the substance also included magnetite. The findings made it very clear that removing cadmium with biochar reduced their risk and did it in a quick, inexpensive, and environmentally beneficial manner. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
2090083X
Volume :
15
Issue :
2
Database :
Academic Search Index
Journal :
Egyptian Academic Journal of Biological Sciences, C Physiology & Molecular Biology
Publication Type :
Academic Journal
Accession number :
173708808
Full Text :
https://doi.org/10.21608/EAJBSC.2023.321788