Eun-Bi Kim, M Shaheer Akhtar, Sadia Ameen, Ahmad Umar, Sheikh Akbar, S Baskoutas
{"title":"利用具有特殊吸附能力的 WO3-BiVO4 纳米片异质结构增强乙二胺检测:实验和理论研究。","authors":"Eun-Bi Kim, M Shaheer Akhtar, Sadia Ameen, Ahmad Umar, Sheikh Akbar, S Baskoutas","doi":"10.1088/1361-6528/ada038","DOIUrl":null,"url":null,"abstract":"<p><p>The present work describes the synthesis of WO<sub>3</sub>-BiVO<sub>4</sub>-nanoflakes heterostructure (NFHs) by a single step hydrothermal method. The analysis of crystalline phases and structural behavior deduced the formation of good crystal quality WO<sub>3</sub>-BiVO<sub>4</sub>NFHs. Under microscopic observation, the as-prepared WO<sub>3</sub>-BiVO<sub>4</sub>displayed uniform and conspicuous nanoflakes like structures. The extensive density functional theory was studied to examine the electronic and band structures of as-prepared WO<sub>3</sub>-BiVO<sub>4</sub>NFHs in terms of formation energy, charge density, density of state and band structures. The synthesized WO<sub>3</sub>-BiVO<sub>4</sub>NFHs was used as sensing electrode towards the detection of ethylenediamine (EDA) chemical that displayed a good sensitivity of ∼318.52 mA·mM<sup>-1</sup>cm<sup>-2</sup>, excellent dynamic range of 1<i>μ</i>M-1 mM with detection limit of ∼94.51 nM and retention coefficient of ∼0.9929. WO<sub>3</sub>-BiVO<sub>4</sub>NFHs electrode possessed the good reproducibility, stability, and repeatability towards EDA chemical. To the best of our knowledge, for the first time, the fabricated chemical sensor fabricated with WO<sub>3</sub>-BiVO<sub>4</sub>NFHs electrode could be promising electrode materials to identify dangerous chemicals at very low concentration in environment. Importantly, the fabricated chemical sensor can be effective for environmental monitoring.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9000,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced ethylenediamine detection using WO<sub>3</sub>-BiVO<sub>4</sub>nanoflakes heterostructure with exceptional adsorption capabilities: experimental and theoretical studies.\",\"authors\":\"Eun-Bi Kim, M Shaheer Akhtar, Sadia Ameen, Ahmad Umar, Sheikh Akbar, S Baskoutas\",\"doi\":\"10.1088/1361-6528/ada038\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The present work describes the synthesis of WO<sub>3</sub>-BiVO<sub>4</sub>-nanoflakes heterostructure (NFHs) by a single step hydrothermal method. The analysis of crystalline phases and structural behavior deduced the formation of good crystal quality WO<sub>3</sub>-BiVO<sub>4</sub>NFHs. Under microscopic observation, the as-prepared WO<sub>3</sub>-BiVO<sub>4</sub>displayed uniform and conspicuous nanoflakes like structures. The extensive density functional theory was studied to examine the electronic and band structures of as-prepared WO<sub>3</sub>-BiVO<sub>4</sub>NFHs in terms of formation energy, charge density, density of state and band structures. The synthesized WO<sub>3</sub>-BiVO<sub>4</sub>NFHs was used as sensing electrode towards the detection of ethylenediamine (EDA) chemical that displayed a good sensitivity of ∼318.52 mA·mM<sup>-1</sup>cm<sup>-2</sup>, excellent dynamic range of 1<i>μ</i>M-1 mM with detection limit of ∼94.51 nM and retention coefficient of ∼0.9929. WO<sub>3</sub>-BiVO<sub>4</sub>NFHs electrode possessed the good reproducibility, stability, and repeatability towards EDA chemical. To the best of our knowledge, for the first time, the fabricated chemical sensor fabricated with WO<sub>3</sub>-BiVO<sub>4</sub>NFHs electrode could be promising electrode materials to identify dangerous chemicals at very low concentration in environment. Importantly, the fabricated chemical sensor can be effective for environmental monitoring.</p>\",\"PeriodicalId\":19035,\"journal\":{\"name\":\"Nanotechnology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.9000,\"publicationDate\":\"2025-01-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nanotechnology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1088/1361-6528/ada038\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnology","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1088/1361-6528/ada038","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Enhanced ethylenediamine detection using WO3-BiVO4nanoflakes heterostructure with exceptional adsorption capabilities: experimental and theoretical studies.
The present work describes the synthesis of WO3-BiVO4-nanoflakes heterostructure (NFHs) by a single step hydrothermal method. The analysis of crystalline phases and structural behavior deduced the formation of good crystal quality WO3-BiVO4NFHs. Under microscopic observation, the as-prepared WO3-BiVO4displayed uniform and conspicuous nanoflakes like structures. The extensive density functional theory was studied to examine the electronic and band structures of as-prepared WO3-BiVO4NFHs in terms of formation energy, charge density, density of state and band structures. The synthesized WO3-BiVO4NFHs was used as sensing electrode towards the detection of ethylenediamine (EDA) chemical that displayed a good sensitivity of ∼318.52 mA·mM-1cm-2, excellent dynamic range of 1μM-1 mM with detection limit of ∼94.51 nM and retention coefficient of ∼0.9929. WO3-BiVO4NFHs electrode possessed the good reproducibility, stability, and repeatability towards EDA chemical. To the best of our knowledge, for the first time, the fabricated chemical sensor fabricated with WO3-BiVO4NFHs electrode could be promising electrode materials to identify dangerous chemicals at very low concentration in environment. Importantly, the fabricated chemical sensor can be effective for environmental monitoring.
期刊介绍:
The journal aims to publish papers at the forefront of nanoscale science and technology and especially those of an interdisciplinary nature. Here, nanotechnology is taken to include the ability to individually address, control, and modify structures, materials and devices with nanometre precision, and the synthesis of such structures into systems of micro- and macroscopic dimensions such as MEMS based devices. It encompasses the understanding of the fundamental physics, chemistry, biology and technology of nanometre-scale objects and how such objects can be used in the areas of computation, sensors, nanostructured materials and nano-biotechnology.