Synergistic Effects of Antimony Oxide Embedded Graphitic Carbon Nitride Nanocomposite as a sensing Interface for Hazardous Bisphenol A: An Electrochemical and Computational Approach

IF 2.8 4区化学 Q3 CHEMISTRY, PHYSICAL

Electrocatalysis Pub Date : 2025-03-31 DOI:10.1007/s12678-025-00948-4

Saheed E. Elugoke, Pakamisa E. Bono, Pattan-Siddappa Ganesh, Sang-Youn Kim, Eno E. Ebenso

{"title":"Synergistic Effects of Antimony Oxide Embedded Graphitic Carbon Nitride Nanocomposite as a sensing Interface for Hazardous Bisphenol A: An Electrochemical and Computational Approach","authors":"Saheed E. Elugoke, Pakamisa E. Bono, Pattan-Siddappa Ganesh, Sang-Youn Kim, Eno E. Ebenso","doi":"10.1007/s12678-025-00948-4","DOIUrl":null,"url":null,"abstract":"<div><p>Herein, an electrochemical sensor based on antimony oxide/graphitic carbon nitride nanocomposite (Sb<sub>2</sub>O<sub>3</sub>/GCN) was applied for bisphenol A (BPA) electroanalysis in a water sample. This composite and its components were characterized with X-ray diffraction (XRD) spectroscopy, UV–visible spectroscopy, Raman spectroscopy, Scanning electron microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDX). Electrochemical characterization of a pencil graphite electrode (PGE) modified with Sb<sub>2</sub>O<sub>3</sub>/GCN, Sb<sub>2</sub>O<sub>3</sub> nanoparticles (Sb<sub>2</sub>O<sub>3</sub> NPs) and graphitic carbon nitride (GCN) show that the Sb<sub>2</sub>O<sub>3</sub>/GCN modified pencil graphite electrode (PGE/Sb<sub>2</sub>O<sub>3</sub>/GCN) has the highest electroactive surface area and electronic conductivity. Theoretical calculation of the adsorption energies of BPA/GCN complex and its variants revealed that hydrogen bonding and π- π interaction between GCN and BPA contributed to the electrocatalytic oxidation of BPA at the proposed sensor. The limit of detection of BPA at PGE/Sb<sub>2</sub>O<sub>3</sub>/GCN was estimated to be 5.61 μM. The calibration curve depicting the changes in peak current with BPA concentration showed two linear ranges at 8–60 μM and 60–140 μM. Also, the proposed sensor offered a percentage recovery of 102.43% for BPA in spiked bottled water. These figures of merit as well as the outstanding selectivity, remarkable repeatability and good reproducibility of the proposed sensor are indications that PGE/Sb<sub>2</sub>O<sub>3</sub>/GCN is a useful analytical tool for BPA electroanalysis in water samples.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"16 4","pages":"667 - 682"},"PeriodicalIF":2.8000,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrocatalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12678-025-00948-4","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Herein, an electrochemical sensor based on antimony oxide/graphitic carbon nitride nanocomposite (Sb₂O₃/GCN) was applied for bisphenol A (BPA) electroanalysis in a water sample. This composite and its components were characterized with X-ray diffraction (XRD) spectroscopy, UV–visible spectroscopy, Raman spectroscopy, Scanning electron microscopy (SEM) and Energy dispersive X-ray spectroscopy (EDX). Electrochemical characterization of a pencil graphite electrode (PGE) modified with Sb₂O₃/GCN, Sb₂O₃ nanoparticles (Sb₂O₃ NPs) and graphitic carbon nitride (GCN) show that the Sb₂O₃/GCN modified pencil graphite electrode (PGE/Sb₂O₃/GCN) has the highest electroactive surface area and electronic conductivity. Theoretical calculation of the adsorption energies of BPA/GCN complex and its variants revealed that hydrogen bonding and π- π interaction between GCN and BPA contributed to the electrocatalytic oxidation of BPA at the proposed sensor. The limit of detection of BPA at PGE/Sb₂O₃/GCN was estimated to be 5.61 μM. The calibration curve depicting the changes in peak current with BPA concentration showed two linear ranges at 8–60 μM and 60–140 μM. Also, the proposed sensor offered a percentage recovery of 102.43% for BPA in spiked bottled water. These figures of merit as well as the outstanding selectivity, remarkable repeatability and good reproducibility of the proposed sensor are indications that PGE/Sb₂O₃/GCN is a useful analytical tool for BPA electroanalysis in water samples.

Graphical Abstract

Abstract Image

查看原文本刊更多论文

氧化锑嵌入石墨氮化碳纳米复合材料作为有害双酚a传感界面的协同效应：电化学和计算方法

本文采用一种基于氧化锑/石墨氮化碳纳米复合材料（Sb2O3/GCN）的电化学传感器对水样中的双酚A （BPA）进行了电分析。采用x射线衍射（XRD）、紫外可见光谱、拉曼光谱、扫描电镜（SEM）和能量色散x射线能谱（EDX）对该复合材料及其组分进行了表征。用Sb2O3/GCN、Sb2O3纳米粒子（Sb2O3 NPs）和石墨氮化碳（GCN）改性铅笔石墨电极（PGE）的电化学表征表明，Sb2O3/GCN改性铅笔石墨电极（PGE/Sb2O3/GCN）具有最高的电活性表面积和电子导电性。对BPA/GCN配合物及其衍生物的吸附能的理论计算表明，GCN与BPA之间的氢键和π- π相互作用有助于BPA在该传感器上的电催化氧化。BPA在PGE/Sb2O3/GCN上的检出限为5.61 μM。峰值电流随BPA浓度的变化曲线在8 ~ 60 μM和60 ~ 140 μM呈线性变化。此外，该传感器对瓶装水中BPA的回收率为102.43%。该传感器具有优异的选择性、显著的可重复性和良好的再现性，表明PGE/Sb2O3/GCN是水样中BPA电分析的有用分析工具。图形抽象

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

Electrocatalysis CHEMISTRY, PHYSICAL-ELECTROCHEMISTRY

CiteScore

4.80

自引率

6.50%

发文量

审稿时长

>12 weeks

期刊介绍： Electrocatalysis is cross-disciplinary in nature, and attracts the interest of chemists, physicists, biochemists, surface and materials scientists, and engineers. Electrocatalysis provides the unique international forum solely dedicated to the exchange of novel ideas in electrocatalysis for academic, government, and industrial researchers. Quick publication of new results, concepts, and inventions made involving Electrocatalysis stimulates scientific discoveries and breakthroughs, promotes the scientific and engineering concepts that are critical to the development of novel electrochemical technologies. Electrocatalysis publishes original submissions in the form of letters, research papers, review articles, book reviews, and educational papers. Letters are preliminary reports that communicate new and important findings. Regular research papers are complete reports of new results, and their analysis and discussion. Review articles critically and constructively examine development in areas of electrocatalysis that are of broad interest and importance. Educational papers discuss important concepts whose understanding is vital to advances in theoretical and experimental aspects of electrochemical reactions.