Efficient removal of metal ions from aqueous solutions using MoS2 functionalized chitosan Schiff base incorporated with Fe3O4 nanoparticle

被引：8

作者：

Achaiah, I. Risha ^{[1
]}

Gayathri, B. H. ^{[2
]}

Banu, Nagma ^{[3
]}

Kaliprasad, C. S. ^{[4
]}

Mata, B. N. Beena ullala ^{[5
]}

Ajeya, K. P. ^{[1
]}

Balakrishna, K. ^{[3
]}

Udayabhanu ^{[1
]}

Prashantha, K. ^{[1
]}

Girish, Y. R. ^{[1
]}

Anush, S. M. ^{[1
]}

机构：

[1] Adichunchanagiri Univ, Adichunchanagiri Sch Nat Sci, ACU Ctr Res & Innovat, Mandya 571448, India

[2] BMS Coll Women, Bengaluru 560004, Karnataka, India

[3] Mangalore Univ, Dept Postgrad Studies & Res Chem, Konaje 574199, Karnataka, India

[4] BMS Coll Engn, Dept Phys, Bengaluru 560019, India

[5] BMS Coll Engn, Dept Med Elect, Bengaluru 560019, India

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2023年 / 248卷

关键词：

Chitosan; Pyrazole; Adsorption studies; Metal ion removal; HEAVY-METALS; CR(VI) IONS; ADSORPTION; CU(II); PB(II); MICROSPHERES; CD(II); ADSORBENT; SORPTION; ZN(II);

D O I：

10.1016/j.ijbiomac.2023.125976

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In the present work a novel pyrazole based chitosan Schiff base material was prepared using 5-azido-3-methyl-1-phenyl-1H-pyrazole-4-carbaldehyde and functionalized using Fe3O4-MoS2, where the nanoparticles get embedded within the gel matrix. The composite material was characterized using various techniques such as XRD, SEM, FTIR, EDS and TGA. The adsorbent material was analysed for the adsorptive take up process from the aqueous solutions of metal ion concentration ranging 20-100 mgL-1. The maximum adsorption capacity ob-tained for the material was 200.00 and 125.00 mg/g for Cr(VI) and Cu(II) respectively. Adsorptive mechanism was found to have pseudo second order kinetics and the adsorption isotherm followed Langmuir adsorption model following the monolayer adsorptive process. Further the evaluated thermodynamic parameter showed the adsorption process to be spontaneous and endothermic in nature. Reusability of the composite material was achieved using suitable stripping solutions.

引用

页数：12

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