Functionalized Ni nanoparticles synthesized using electroless plating waste. Characterization and possible application as methylene blue adsorbent

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-06-14 DOI:10.1016/j.mseb.2025.118498

Roxana Belén Alvian Yañez , Susana Yamila Martinez Stagnaro , Susana Beatriz Ramos

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引用次数: 0

Abstract

This study investigates the reuse of industrial residue to synthesize magnetic nickel nanoparticles functionalized with sodium dodecyl sulfate (Ni-NPs/SDS). Two synthesis routes were tested: Route 1 involved in situ functionalization during nickel recovery (RHS sample), while Route 2 included separate oxidation and functionalization steps after nanoparticle synthesis (RHoxS sample). The Ni particles showed spherical morphology and crystallite sizes of 8 – 11 nm. Functionalized particles had slightly larger sizes (10 – 15 nm) and irregular, spiky surfaces, more evident in RHoxS. The ferromagnetic character was reduced in functionalized samples, and all exhibited negative zeta potential values below 30 mV.

A preliminary methylene blue (MB) adsorption study with RHoxS showed effective functionalization. Batch tests at room temperature fit better to the Freundlich isotherm model (R² = 0.9633), suggesting a heterogeneous surface and a physical adsorption process. The Langmuir isotherm model estimates a maximum capacity of adsorption of 5.51 mg.g^-¹, indicating the material’s potential for wastewater dye removal.

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利用化学镀废料合成功能化镍纳米颗粒。亚甲基蓝吸附剂的表征及应用前景

研究了利用工业废渣合成十二烷基硫酸钠功能化磁性纳米镍的方法。测试了两种合成路线：路线1涉及镍回收过程中的原位功能化（RHS样品），而路线2包括纳米颗粒合成后的单独氧化和功能化步骤（RHoxS样品）。Ni颗粒呈球形，晶粒尺寸为8 ~ 11nm。功能化颗粒尺寸略大（10 ~ 15 nm），表面不规则，呈尖状，在RHoxS中更为明显。功能化样品的铁磁特性降低，在30 mV以下均呈现负zeta电位值。初步研究了RHoxS对亚甲基蓝（MB）的吸附效果。室温下的批量实验更符合Freundlich等温线模型（R2 = 0.9633），表明其表面为非均质，存在物理吸附过程。Langmuir等温线模型估计最大吸附量为5.51 mg。G-1，表明该材料具有去除废水染料的潜力。

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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.