Large-area hybrid silver/nickel-iron layer double hydroxide on metallic tube array for highly sensitive surface-enhanced Raman scattering (SERS) application

IF 5.8 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-09-13 DOI:10.1016/j.clay.2025.107986

Balasubramanian Sriram , Alfreda Krisna Altama , Elaiyappillai Elanthamilan , Yi-Le Liao , Sea-Fue Wang , Jinn P. Chu

{"title":"Large-area hybrid silver/nickel-iron layer double hydroxide on metallic tube array for highly sensitive surface-enhanced Raman scattering (SERS) application","authors":"Balasubramanian Sriram , Alfreda Krisna Altama , Elaiyappillai Elanthamilan , Yi-Le Liao , Sea-Fue Wang , Jinn P. Chu","doi":"10.1016/j.clay.2025.107986","DOIUrl":null,"url":null,"abstract":"<div><div>This paper presented a novel method for the preparation of hybrid metallic tube arrays (MeTA) with Ag coated nickel‑iron layered double hydroxide (LDH) as highly sensitive surface-enhanced Raman scattering (SERS) substrates for the detection of toxic dyes. Nickel‑iron LDH was used as a two-dimensional material with a brucite-like structure featured a large surface area and excellent adsorption capacity. This study leveraged the sharp edges of the array structures in conjunction with the plasmonic properties of silver (a noble metal) to amplify local electromagnetic fields to create plasmonic hot spots. A hybrid heterojunction composed of Ag and LDH on MeTA enhanced the capacity of the substrate to absorb target analytes such as rhodamine 6G (R6G) and malachite green (MG). The substrate demonstrated enhanced SERS performance, as indicated by high enhancement factors in the detection of R6G (2.6 × 108) and MG (1.8 × 106). The arrays exhibited a broad linear dynamic range (R6G: 10−4 to 10−14 mol L−1; MG: 10−4 to 10−10 mol L−1), exceeded the ranges reported in previous studies. The structure of the array also revealed good reproducibility and variability. In addition, the limit of detection for R6G was determined to be 6.0 × 10−9 mol L−1 based on band height calibration and 2.57 × 10−9 mol L−1 based on band height ratio calibration, respectively. These results underscored the importance of adsorption capacity in developing advanced SERS substrates.</div></div>","PeriodicalId":245,"journal":{"name":"Applied Clay Science","volume":"278 ","pages":"Article 107986"},"PeriodicalIF":5.8000,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Clay Science","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0169131725002911","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

This paper presented a novel method for the preparation of hybrid metallic tube arrays (MeTA) with Ag coated nickel‑iron layered double hydroxide (LDH) as highly sensitive surface-enhanced Raman scattering (SERS) substrates for the detection of toxic dyes. Nickel‑iron LDH was used as a two-dimensional material with a brucite-like structure featured a large surface area and excellent adsorption capacity. This study leveraged the sharp edges of the array structures in conjunction with the plasmonic properties of silver (a noble metal) to amplify local electromagnetic fields to create plasmonic hot spots. A hybrid heterojunction composed of Ag and LDH on MeTA enhanced the capacity of the substrate to absorb target analytes such as rhodamine 6G (R6G) and malachite green (MG). The substrate demonstrated enhanced SERS performance, as indicated by high enhancement factors in the detection of R6G (2.6 × 10⁸) and MG (1.8 × 10⁶). The arrays exhibited a broad linear dynamic range (R6G: 10⁻⁴ to 10⁻¹⁴ mol L⁻¹; MG: 10⁻⁴ to 10⁻¹⁰ mol L⁻¹), exceeded the ranges reported in previous studies. The structure of the array also revealed good reproducibility and variability. In addition, the limit of detection for R6G was determined to be 6.0 × 10⁻⁹ mol L⁻¹ based on band height calibration and 2.57 × 10⁻⁹ mol L⁻¹ based on band height ratio calibration, respectively. These results underscored the importance of adsorption capacity in developing advanced SERS substrates.

查看原文本刊更多论文

金属管阵列上大面积混合银/镍铁层双氢氧化物用于高灵敏度表面增强拉曼散射（SERS）

本文提出了一种以镀银镍铁层状双氢氧化物（LDH）作为高灵敏度表面增强拉曼散射（SERS）底物制备杂化金属管阵列（MeTA）的新方法，用于检测有毒染料。镍铁LDH作为一种二维材料，具有类似水镁石的结构，具有较大的表面积和优异的吸附能力。这项研究利用阵列结构的尖锐边缘和银（一种贵金属）的等离子体特性来放大局部电磁场，从而产生等离子体热点。在MeTA上由Ag和LDH组成的杂化异质结增强了底物吸收目标分析物如罗丹明6G （R6G）和孔雀石绿（MG）的能力。通过检测R6G （2.6 × 108）和MG （1.8 × 106）的高增强因子，表明该底物具有增强的SERS性能。该阵列具有较宽的线性动态范围（R6G: 10−4 ~ 10−14 mol L−1;MG: 10−4 ~ 10−10 mol L−1），超出了以往研究的范围。该阵列的结构也显示出良好的再现性和可变性。此外，基于带高校正R6G的检出限为6.0 × 10−9 mol L−1，基于带高比校正R6G的检出限为2.57 × 10−9 mol L−1。这些结果强调了吸附能力在开发先进SERS底物中的重要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...