SDS-Assisted Hydrothermal Growth and Photocatalytic Activity of Like-Caviar MoFe2O4 Nanoparticle Decorated with Al2O3

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-06-01 DOI:10.22146/ijc.88444

Mohammed Ali Hameed, Luma Majeed Ahmed

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引用次数: 0

Abstract

Like-caviar molybdenum ferrite nanoparticles (MoFe2O4 NPs) have been successfully synthesized via a hydrothermal route in the presence of the negative surfactant (sodium dodecyl sulfate (SDS)). SDS acts as a template, stabilizer, and stops the aggregating process through storage. The mean crystal size of MoFe2O4 NPs rises with decorating it with Al2O3. Based on SEM analysis, the shapes of MoFe2O4, Al2O3, and their composite demonstrated like-caviar, like-brain cells, and like-grains, respectively. Al2O3 has been chosen to incorporate with spinel MoFe2O4 to make it color more light, this crucial step is necessary to enhance their optical characteristics. FTIR spectra observed the MoFe2O4 NPs are inverse spinel. The photo-decolorization test employs indigo carmine (IC) as a model pollutant. The quantum yields (Φ) of IC dye decolorization with studied photocatalysts are low, which may be created by quencher materials, dimerization of dye molecules, and photophysical deactivation processes (ISC process). Moreover, the photocatalytic activity of using MoFe2O4 raised after being decorated with alumina, which revealed an increase in the surface acidity, hydroxyl group adsorption, size, band gap, pHpzc of MoFe2O4 from 2.9–3.6 to 4.2–5.9 after decorated alumina. This pH is suitable for decolorizing IC dye, which has a pH of solution equal to 5.3.

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用 Al2O3 装饰的类天青石 MoFe2O4 纳米粒子的 SDS 辅助水热生长和光催化活性

在负表面活性剂（十二烷基硫酸钠（SDS））的作用下，通过水热法成功合成了类天青石钼铁氧体纳米粒子（MoFe2O4 NPs）。SDS 起着模板和稳定剂的作用，并通过储存阻止聚集过程。随着 Al2O3 的加入，MoFe2O4 NPs 的平均晶体尺寸增大。根据扫描电子显微镜分析，MoFe2O4、Al2O3 及其复合材料的形状分别表现为类天青石、类脑细胞和类晶粒。我们选择将 Al2O3 与尖晶石 MoFe2O4 结合在一起，使其颜色更亮，这是增强其光学特性的关键步骤。傅立叶变换红外光谱观察到 MoFe2O4 NPs 是反尖晶石。光脱色试验采用靛蓝胭脂红（IC）作为模型污染物。所研究的光催化剂对 IC 染料脱色的量子产率（Φ）较低，这可能是由淬灭剂材料、染料分子的二聚化和光物理失活过程（ISC 过程）造成的。此外，用氧化铝装饰 MoFe2O4 后，其光催化活性有所提高，这表明在装饰氧化铝后，MoFe2O4 的表面酸度、羟基吸附、尺寸、带隙和 pHpzc 从 2.9-3.6 提高到 4.2-5.9。这一 pH 值适合于对溶液 pH 值等于 5.3 的 IC 染料进行脱色。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.