Ion-exchanged zeolite for simulating the Vis-NIR spectra characteristics of natural leaves

IF 4.8 3区材料科学 Q1 CHEMISTRY, APPLIED

Microporous and Mesoporous Materials Pub Date : 2025-02-28 DOI:10.1016/j.micromeso.2025.113570

Haoyan Zhou , Mei Zu , Shiquan Li , Yuanxi Chang , Chenglong Lv , Haifeng Cheng

{"title":"Ion-exchanged zeolite for simulating the Vis-NIR spectra characteristics of natural leaves","authors":"Haoyan Zhou , Mei Zu , Shiquan Li , Yuanxi Chang , Chenglong Lv , Haifeng Cheng","doi":"10.1016/j.micromeso.2025.113570","DOIUrl":null,"url":null,"abstract":"<div><div>The development of materials that simulate the visible and near-infrared (Vis-NIR) spectral characteristics of vegetation is crucial in the field of biomimetic camouflage. In this research, a novel spectral simulation material based on ion-exchanged zeolites has been synthesized, designed to simulate the spectral characteristics of green and yellow foliage. The structure and microscopic morphology of ion-exchanged zeolite was checked by XRD, FTIR, SEM techniques. Also, N<sub>2</sub> physisorption analyses and UV–Vis–NIR spectroscopy were use to analyzed the effect of ion exchange concentration on its water vapor adsorption capacity and spectral reflectance. The introduction of metal cations can mimic the absorption of different pigments in visible bands in plant leaves. Meanwhile, the analysis shows that exchange with chromium and iron cations resulted in a maximum increase in specific surface area to 604 and 582 m<sup>2</sup>/g, respectively, and consequently the increase in water adsorption capacity with approximately the same rate (13.1 %, 9.3 %), which further enhances the similarity of the near-infrared spectra. Subsequently, bionic coatings were prepared using ion-exchanged zeolites as pigments, and the spectral correlation coefficient of the Vis-NIR spectrum between bionic coatings and green and yellow leaves reached 0.95 and 0.96, which effectively solved the problem of accurately simulating the same color and spectrum as vegetation in the 400–2500 nm wavelength range.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"390 ","pages":"Article 113570"},"PeriodicalIF":4.8000,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microporous and Mesoporous Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387181125000848","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

The development of materials that simulate the visible and near-infrared (Vis-NIR) spectral characteristics of vegetation is crucial in the field of biomimetic camouflage. In this research, a novel spectral simulation material based on ion-exchanged zeolites has been synthesized, designed to simulate the spectral characteristics of green and yellow foliage. The structure and microscopic morphology of ion-exchanged zeolite was checked by XRD, FTIR, SEM techniques. Also, N₂ physisorption analyses and UV–Vis–NIR spectroscopy were use to analyzed the effect of ion exchange concentration on its water vapor adsorption capacity and spectral reflectance. The introduction of metal cations can mimic the absorption of different pigments in visible bands in plant leaves. Meanwhile, the analysis shows that exchange with chromium and iron cations resulted in a maximum increase in specific surface area to 604 and 582 m²/g, respectively, and consequently the increase in water adsorption capacity with approximately the same rate (13.1 %, 9.3 %), which further enhances the similarity of the near-infrared spectra. Subsequently, bionic coatings were prepared using ion-exchanged zeolites as pigments, and the spectral correlation coefficient of the Vis-NIR spectrum between bionic coatings and green and yellow leaves reached 0.95 and 0.96, which effectively solved the problem of accurately simulating the same color and spectrum as vegetation in the 400–2500 nm wavelength range.

Abstract Image

查看原文本刊更多论文

模拟天然树叶可见光-近红外光谱特征的离子交换沸石

模拟植被可见光和近红外光谱特征的材料的开发在仿生伪装领域至关重要。在本研究中，合成了一种基于离子交换沸石的新型光谱模拟材料，旨在模拟绿色和黄色树叶的光谱特性。采用XRD、FTIR、SEM等技术对离子交换沸石的结构和微观形貌进行了表征。利用N2物理吸附分析和紫外-可见-近红外光谱分析了离子交换浓度对其水蒸气吸附能力和光谱反射率的影响。金属阳离子的引入可以模拟植物叶片可见光波段不同色素的吸收。与此同时，分析表明，与铬和铁离子交换后，材料的比表面积最大增加，分别为604和582 m2/g，吸附量的增加速率大致相同，分别为13.1%和9.3%，这进一步提高了近红外光谱的相似性。随后，以离子交换沸石为颜料制备仿生涂层，仿生涂层与绿叶、黄叶的Vis-NIR光谱相关系数分别达到0.95和0.96，有效解决了400-2500 nm波长范围内准确模拟与植被相同颜色和光谱的问题。

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

Microporous and Mesoporous Materials 化学-材料科学：综合

CiteScore

10.70

自引率

5.80%

发文量

649

审稿时长

26 days

期刊介绍： Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal. Topics which are particularly of interest include: All aspects of natural microporous and mesoporous solids The synthesis of crystalline or amorphous porous materials The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials Adsorption (and other separation techniques) using microporous or mesoporous adsorbents Catalysis by microporous and mesoporous materials Host/guest interactions Theoretical chemistry and modelling of host/guest interactions All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.