Effects of Iron Ion Ratios on the Synthesis and Adsorption Capacity of the Magnetic Graphene Oxide Nanomaterials

IF 2.9 4区综合性期刊 Q1 Multidisciplinary Arabian Journal for Science and Engineering Pub Date : 2024-09-18 DOI:10.1007/s13369-024-09575-5

H. Hamiyet Konuk, Erdem Alp, Zeynep Ozaydin, Dilsad Dolunay Eslek Koyuncu, Huseyin Arbag

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Abstract

Nanocomposites consisting of graphene oxide (GO) and Fe₃O₄ nanoparticles are significant structures due to their high absorption and magnetic properties, and they are promising materials for various application areas from drug delivery to dye removal. In this study, the effect of adding iron salts with different Fe²⁺/Fe³⁺ ratios during the synthesis of magnetic graphene oxide (MNGO) nanocomposites on size distribution, magnetic properties, morphology, and adsorption–desorption behavior was investigated. Characterization results indicated that superparamagnetic iron oxide nanoparticles (SPIONs) were successfully integrated into MNGO nanocomposites, and the surface area increased when SPIONs were synthesized on GO significantly, especially with increasing Fe²⁺/Fe³⁺ ratio. MNGO nanocomposites were tested for the removal of methylene blue (MB). Moreover, the effects of initial pH, dye concentration, and temperature on the adsorption process of MB were also studied. As a result, it is shown that the Fe²⁺/Fe³⁺ ratio has a crucial effect on the adsorption–desorption behavior of MNGO nanocomposites, which are promising nanomaterials for dye removal studies.

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铁离子比率对磁性氧化石墨烯纳米材料的合成和吸附能力的影响

由氧化石墨烯（GO）和 Fe3O4 纳米颗粒组成的纳米复合材料因其高吸附性和磁性而成为一种重要的结构，是一种很有前途的材料，可用于从药物传输到染料去除等多个应用领域。本研究考察了在合成磁性氧化石墨烯（MNGO）纳米复合材料过程中添加不同 Fe2+/Fe3+ 比例的铁盐对其粒度分布、磁性能、形貌和吸附-解吸行为的影响。表征结果表明，超顺磁性氧化铁纳米粒子（SPIONs）成功地融入了 MNGO 纳米复合材料，而且当 SPIONs 在 GO 上合成时，其表面积显著增加，尤其是随着 Fe2+/Fe3+ 比值的增加。对 MNGO 纳米复合材料进行了去除亚甲基蓝（MB）的测试。此外，还研究了初始 pH 值、染料浓度和温度对 MB 吸附过程的影响。结果表明，Fe2+/Fe3+ 比率对 MNGO 纳米复合材料的吸附-解吸行为有重要影响，MNGO 纳米复合材料是一种很有潜力的染料去除纳米材料。

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来源期刊

Arabian Journal for Science and Engineering 综合性期刊-综合性期刊

CiteScore

5.20

自引率

3.40%

发文量

审稿时长

4.3 months

期刊介绍： King Fahd University of Petroleum & Minerals (KFUPM) partnered with Springer to publish the Arabian Journal for Science and Engineering (AJSE). AJSE, which has been published by KFUPM since 1975, is a recognized national, regional and international journal that provides a great opportunity for the dissemination of research advances from the Kingdom of Saudi Arabia, MENA and the world.