剪裁Bi， Sn共掺杂CoZnFe2O4去除Ni （II）和Cs (I)：对表征，吸附活性，动力学，热力学和非线性等温线的见解

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-09-25 DOI:10.1016/j.mseb.2025.118820

Amani Aridi , Sajida Rmeid , Malak Yasser El Sayed , Khulud Habanjar , Gehan M. El-Subruiti , Ehab M. Abdel Rahman , Waleed F. Khalil , Ramadan Awad , Nourhan Mohamed Gaber

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引用次数: 0

摘要

采用共沉淀法合成了Co0.5-xZn0.5-xBixSnxFe2O4 （CZBSFs, 0.00≤x≤0.10）纳米粒子，并对其进行了结构、形貌和磁性表征。Bi和Sn的共掺杂减小了晶体尺寸（14.04 ~ 7.29 nm），增加了晶格参数（8.384 ~ 8.410 Å），增强了超顺磁性（91.33% ~ 94.67%）。XRD， TEM， FTIR和拉曼分析证实了立方尖晶石的形成。XPS谱分析证实了组成元素的氧化态，表明铋和锡离子占据了八面体的位置。研究了czbsf对水中Ni （II）和Cs (I)放射性核素的修复作用。在100 ppm Ni （II）和Cs (I)条件下，180 min后，CZBSFs （x = 0.10）的qm和%R分别为43.2 mg/g， 86.4%和42.6 mg/g, 85.3%。吸附遵循Redlich-Peterson等温线和准二级动力学，具有吸热行为。CZBSFs对放射性金属污染废水的有效处理。

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Tailoring Bi, Sn co-doped CoZnFe2O4 for Ni (II) and Cs (I) removal: Insights into characterization, adsorption activity, kinetics, thermodynamics, and non-linear isotherms

Co_0.5-xZn_0.5-xBi_xSn_xFe₂O₄ (CZBSFs, 0.00 ≤ x ≤ 0.10) nanoparticles were synthesized via co-precipitation and characterized structurally, morphologically, and magnetically. Co-doping with Bi and Sn reduced crystallite size (14.04 to 7.29 nm), increased lattice parameter (8.384 to 8.410 Å), and enhanced superparamagnetism (91.33 % to 94.67 %). XRD, TEM, FTIR, and Raman analysis confirmed cubic spinel formation. The oxidation states of the constituent elements were confirmed by XPS spectroscopy, indicating that the octahedral positions are occupied by Bi and Sn ions. CZBSFs were studied for water remediation of Ni (II) and Cs (I) radionuclides. The q_m and %R achieved by CZBSFs (x = 0.10) were 43.2 mg/g, 86.4 %, and 42.6 mg/g, 85.3 %, after 180 min for 100 ppm Ni (II) and Cs (I), respectively. Adsorption followed the Redlich-Peterson isotherm and pseudo-second-order kinetics, with endothermic behavior. CZBSFs demonstrate effective treatment of wastewater contaminated with radioactive metals.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.