Advanced superparamagnetic cross‐linked chitosan‐based biosorbent hydrogel for efficient removal of indigo carmine dye from water: Adsorption isotherms, kinetics, and thermodynamic studies

IF 4.7 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-07-01 DOI:10.1002/pat.6513

Farnaz Azadikhah, Maryam Ghaderi, Hesam Khorsandi, Ali Reza Karimi

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Abstract

Water contamination from industrial dyes poses a significant threat to the environment and human health. This study focuses on the development of advanced porous cross‐linked chitosan‐based hydrogels and superparamagnetic hydrogel nanocomposites for efficient removal of indigo carmine (IC) dye from water. The hydrogels were cross‐linked using benzophenonetetracarboxylic dianhydride (BTDA) and incorporated functionalized magnetic iron nanoparticles (CP‐MNPs). A comparative study revealed that the superparamagnetic hydrogel nanocomposite exhibited superior performance in IC dye adsorption. Higher IC removal efficiencies were observed at lower amounts of cross‐linker, pH, and adsorbent dosage. The superparamagnetic hydrogel nanocomposite demonstrated superior IC dye adsorption compared with the chitosan hydrogel. The adsorption process followed a pseudo‐second‐order kinetic model and Langmuir isotherm model. Thermodynamic data indicated that the adsorption onto the superparamagnetic hydrogel nanocomposite was endothermic and spontaneous, making it a promising material for environmental applications.

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先进的超顺磁性交联壳聚糖基生物吸附剂水凝胶用于高效去除水中的靛蓝胭脂红染料：吸附等温线、动力学和热力学研究

工业染料造成的水污染对环境和人类健康构成了严重威胁。本研究的重点是开发先进的多孔交联壳聚糖基水凝胶和超顺磁性水凝胶纳米复合材料，以高效去除水中的靛蓝胭脂红（IC）染料。这些水凝胶使用苯并四羧酸二酐（BTDA）进行交联，并加入了功能化的磁性纳米铁粒子（CP-MNPs）。比较研究表明，超顺磁性水凝胶纳米复合材料在 IC 染料吸附方面表现出卓越的性能。在交联剂用量、pH 值和吸附剂用量较低的情况下，IC 去除率较高。与壳聚糖水凝胶相比，超顺磁性水凝胶纳米复合材料表现出更优越的 IC 染料吸附性能。吸附过程遵循伪二阶动力学模型和 Langmuir 等温线模型。热力学数据表明，超顺磁性水凝胶纳米复合材料上的吸附是内热和自发的，使其成为一种具有环境应用前景的材料。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico

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