易燃合成掺钙纳米磁性铁氧体的定制形貌及染料吸附性能

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Polyhedron Pub Date : 2025-04-01 DOI:10.1016/j.poly.2025.117531

Dharmaraj J. Patil , Rakesh Kumar , Harpreet Singh Grewal

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引用次数: 0

摘要

本工作旨在利用先锋燃料作为还原剂，通过燃烧合成（CS）制备CaFe2O4，作为染料吸附的潜在吸附剂。以甘油（Gly）、乙二醇（EG）和二甘醇（DEG）为原料，采用CS法合成了CaFe2O4。采用9种等温线模型和4种动力学模型对AF吸附进行了全面研究，通过优化吸附效率，建立了吸附过程和机理。采用XRD、FTIR、VSM、BET和FESEM对吸附剂进行表征。燃料对CaFe2O4的表面性质和形貌有显著影响。与EG-CaFe2O4的块状和不规则结构相比，DEG-CaFe2O4呈现出多维海绵状形态。CaFe2O4的Langmuir吸附量为：DEG-CaFe2O4 (1223) >；Gly-CaFe2O4 (1101) >；EG-CaFe2O4 （987 mg/g）随表面形貌而非表面积的转变而变化。拟二阶动力学和Langmuir等温模型证明了酸性品红（AF）对染料的吸收。本研究表明，燃料对CS中CaFe2O4的形态特性有显著影响，从而显著影响AF吸附效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Tailored morphology of Ca-Doped Nanomagnetic ferrite using facile combustion synthesis for Superior dye adsorption

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Tailored morphology of Ca-Doped Nanomagnetic ferrite using facile combustion synthesis for Superior dye adsorption

Present work aims to use pioneer fuels as a reducer for fabricating CaFe₂O₄ via combustion synthesis (CS) as a potential adsorbent for dye adsorption. CaFe₂O₄ was innovatively synthesized by a CS using fuels, glycerol (Gly), ethylene glycol (EG), and diethylene glycol (DEG). The AF adsorption was comprehensively investigated using nine isotherm and four kinetic models to establish the adsorption process and mechanism by optimizing adsorption efficiency. Characterization of adsorbents was analyzed using XRD, FTIR, VSM, BET, and FESEM. The fuels significantly influenced the surface properties and morphology of CaFe₂O₄. The DEG-CaFe₂O₄ exhibits multi-dimensional spongy morphology compared to the blocky and irregular structure of EG-CaFe₂O₄. The Langmuir adsorption capacity of the CaFe₂O₄ was found to be in order DEG-CaFe₂O₄ (1223) > Gly-CaFe₂O₄ (1101) > EG-CaFe₂O₄ (987 mg/g) following the transition in surface morphology rather than surface area. The pseudo-second-order (PSO) kinetic and the Langmuir isotherm model demonstrate the Acid fuchsin (AF) dye uptake. The present study showed that the fuel has a significant role in the morphological properties of CaFe₂O₄ in the CS, which significantly influences the AF adsorption efficiency.

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来源期刊

Polyhedron 化学-晶体学

CiteScore

4.90

自引率

7.70%

发文量

515

审稿时长

2 months

期刊介绍： Polyhedron publishes original, fundamental, experimental and theoretical work of the highest quality in all the major areas of inorganic chemistry. This includes synthetic chemistry, coordination chemistry, organometallic chemistry, bioinorganic chemistry, and solid-state and materials chemistry. Papers should be significant pieces of work, and all new compounds must be appropriately characterized. The inclusion of single-crystal X-ray structural data is strongly encouraged, but papers reporting only the X-ray structure determination of a single compound will usually not be considered. Papers on solid-state or materials chemistry will be expected to have a significant molecular chemistry component (such as the synthesis and characterization of the molecular precursors and/or a systematic study of the use of different precursors or reaction conditions) or demonstrate a cutting-edge application (for example inorganic materials for energy applications). Papers dealing only with stability constants are not considered.