Synergy of Magnetic Nanoparticles and Sodium Alginate-Coated Lignin for Effective Pollutant Remediation, Simple Recovery, and Cost-Effective Regeneration

被引：1

作者：

Kasbaji, Meriem ^{[1
,2
,3
]}

Mennani, Mehdi ^{[1
]}

Barhoumi, Soufiane ^{[1
]}

Esshouba, Youssef ^{[1
]}

Oubenali, Mustapha ^{[3
]}

Ablouh, El-Houssaine ^{[1
]}

Kassab, Zineb ^{[1
]}

Moubarik, Amine ^{[2
]}

El Achaby, Mounir ^{[1
]}

机构：

[1] Mohammed VI Polytech Univ, Mat Sci Energy & Nanoengn MSN Dept, Ben Guerir 43150, Morocco

[2] Sultan Moulay Slimane Univ, Polydisciplinary Fac, Lab Chem Proc & Appl Mat, Beni Mellal 23000, Morocco

[3] Sultan Moulay Slimane Univ, Fac Sci & Technol, Lab Engn Chem & Phys Matter, Beni Mellal 23000, Morocco

来源：

LANGMUIR | 2024年 / 40卷 / 39期

关键词：

METHYLENE-BLUE; AQUEOUS-SOLUTION; ADSORPTIVE REMOVAL; GREEN SYNTHESIS; WATER-TREATMENT; CARBON; EQUILIBRIUM; KINETICS; BEADS; DYES;

D O I：

10.1021/acs.langmuir.4c02734

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the pursuit of sustainable materials for environmental remediation, this study presents the development and comprehensive characterization of cobalt ferrite nanoparticles (CFNPs) incorporated in lignocellulosic-derived sodium alginate (CFNPs@LCG-SA) biocomposite beads. These biobased beads exhibit exceptional adsorption capabilities, particularly for methylene blue (MB) dyes, rendering them promising candidates for wastewater treatment. Using a comprehensive range of analytical techniques, including Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis-derivative thermogravimetry (TGA/DTG), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), etc., we elucidated their structural, physicochemical, and thermal properties. Their multifunctional nature, derived from lignin and sodium alginate components, provides ample active sites for both physical interactions and chemical bonding with contaminants apart from the magnetic character attributed by the CFNPs. With a freeze-drying approach, the optimal adsorption capacity and removal rate of MB reached 97 mg/g and 99%, respectively, and no meaningful decline in their activity was noted even after six cycles. The CFNPs@LCG-SA biocomposite beads emerge as a cost-efficient and sustainable remedy for environmental cleanup, offering valuable perspectives in environmental preservation and advancing green energy technologies.

引用

页码：20657 / 20678

页数：22