Synthesis, characterization, and valorization of Fe3O4/AC nanocomposite for adsorptive removal of crystal violet (CV) from aqueous solution

IF 2.5 4区材料科学 Q2 CHEMISTRY, APPLIED Journal of Porous Materials Pub Date : 2024-08-05 DOI:10.1007/s10934-024-01621-9

Fatma Ezzahra Haj Mouhamed, Islem Chaari, Amal Andolsi

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Abstract

Activated carbon prepared from sawdust, magnetized by magnetite nanoparticles, was used for the adsorption of crystal violet dye (CV) from an aqueous solution. The nanocomposite Fe₃O₄/AC was characterized by means of XRD, FTIR, SEM, and BET analyses, along with size distribution and zeta potential assessments. The pH_PZC and BET surface area of Fe₃O₄/AC were 6.05 and 160 m²/g, respectively. The study identified the optimum pH condition as pH 9.0, with a maximum removal efficiency of 100%. Kinetic studies were conducted, and the data fitted well with the pseudo-second order equation. The synthesized Fe₃O₄/AC exhibits a maximum uptake capacity of 76.0 mg/g. Overall, this nanocomposite provides an effective type of adsorbent for removing CV dye. Its primary advantage lies in its simple synthesis compared to other magnetic materials, along with its economic viability, rapid preparation, and environmental friendliness.

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用于吸附去除水溶液中结晶紫 (CV) 的 Fe3O4/AC 纳米复合材料的合成、表征和价值评估

利用磁铁矿纳米颗粒磁化锯屑制备的活性炭，用于吸附水溶液中的水晶紫染料（CV）。通过 XRD、傅立叶变换红外光谱、扫描电镜和 BET 分析，以及粒度分布和 zeta 电位评估，对纳米复合材料 Fe3O4/AC 进行了表征。Fe3O4/AC 的 pHPZC 和 BET 表面积分别为 6.05 和 160 m2/g。研究确定的最佳 pH 值为 9.0，最大去除率为 100%。进行了动力学研究，数据与假二阶方程十分吻合。合成的 Fe3O4/AC 的最大吸收能力为 76.0 mg/g。总之，这种纳米复合材料是一种去除 CV 染料的有效吸附剂。与其他磁性材料相比，它的主要优势在于合成简单、经济可行、制备快速和环保。

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来源期刊

Journal of Porous Materials 工程技术-材料科学：综合

CiteScore

4.80

自引率

7.70%

发文量

203

审稿时长

2.6 months

期刊介绍： The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials. Porous materials include microporous materials with 50 nm pores. Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.