Jianzheng Wang , Chunying Liu , Ziao Di , Jiayu Huang , Hongjun Wei , Minjie Guo , Xiaoliang Yu , Nan Li , Jin Zhao , Bowen Cheng
{"title":"聚酰亚胺-多壁碳纳米管复合材料作为同时检测硝基苯酚异构体的电化学传感平台。","authors":"Jianzheng Wang , Chunying Liu , Ziao Di , Jiayu Huang , Hongjun Wei , Minjie Guo , Xiaoliang Yu , Nan Li , Jin Zhao , Bowen Cheng","doi":"10.1016/j.chemosphere.2024.143654","DOIUrl":null,"url":null,"abstract":"<div><div>Developing novel electrode materials plays a crucial role in enhancing the electrochemical sensing performance of chemically modified electrodes. This research presents a composite electrode material based on polyimide incorporated with multiwalled carbon nanotubes (PI-MWCNT) for the simultaneous detection of three nitrophenol isomers (NPs). First, the composite was prepared and characterized using microscopies, spectroscopic techniques, and electrochemical experiments. The results indicated that the PI-MWCNT exhibited porosity and roughness, which facilitated the enhancement of its sensing performance. Afterward, the detection capabilities of PI-MWCNT towards NPs were evaluated through voltammetry experiments under optimal conditions. The differential pulse voltammetry (DPV) curves revealed three distinct anodic peaks in the NPs solution, with linear ranges of 1–300 μM for 2-NP, 0.25–250 μM for 3-NP, and 0.25–400 μM for 4-NP. The limits of detection (LOD) were 0.50 μM for both 2-NP and 3-NP, and 0.64 μM for 4-NP. Furthermore, the proposed electrode material was successfully applied to real samples, achieving recovery rates ranging from 92.9% to 106%. This study could contribute to the development of more efficient and sensitive electrochemical sensors.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Polyimide-multiwalled carbon nanotubes composite as electrochemical sensing platform for the simultaneous detection of nitrophenol isomers\",\"authors\":\"Jianzheng Wang , Chunying Liu , Ziao Di , Jiayu Huang , Hongjun Wei , Minjie Guo , Xiaoliang Yu , Nan Li , Jin Zhao , Bowen Cheng\",\"doi\":\"10.1016/j.chemosphere.2024.143654\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Developing novel electrode materials plays a crucial role in enhancing the electrochemical sensing performance of chemically modified electrodes. This research presents a composite electrode material based on polyimide incorporated with multiwalled carbon nanotubes (PI-MWCNT) for the simultaneous detection of three nitrophenol isomers (NPs). First, the composite was prepared and characterized using microscopies, spectroscopic techniques, and electrochemical experiments. The results indicated that the PI-MWCNT exhibited porosity and roughness, which facilitated the enhancement of its sensing performance. Afterward, the detection capabilities of PI-MWCNT towards NPs were evaluated through voltammetry experiments under optimal conditions. The differential pulse voltammetry (DPV) curves revealed three distinct anodic peaks in the NPs solution, with linear ranges of 1–300 μM for 2-NP, 0.25–250 μM for 3-NP, and 0.25–400 μM for 4-NP. The limits of detection (LOD) were 0.50 μM for both 2-NP and 3-NP, and 0.64 μM for 4-NP. Furthermore, the proposed electrode material was successfully applied to real samples, achieving recovery rates ranging from 92.9% to 106%. This study could contribute to the development of more efficient and sensitive electrochemical sensors.</div></div>\",\"PeriodicalId\":276,\"journal\":{\"name\":\"Chemosphere\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.1000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemosphere\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0045653524025542\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemosphere","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0045653524025542","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Polyimide-multiwalled carbon nanotubes composite as electrochemical sensing platform for the simultaneous detection of nitrophenol isomers
Developing novel electrode materials plays a crucial role in enhancing the electrochemical sensing performance of chemically modified electrodes. This research presents a composite electrode material based on polyimide incorporated with multiwalled carbon nanotubes (PI-MWCNT) for the simultaneous detection of three nitrophenol isomers (NPs). First, the composite was prepared and characterized using microscopies, spectroscopic techniques, and electrochemical experiments. The results indicated that the PI-MWCNT exhibited porosity and roughness, which facilitated the enhancement of its sensing performance. Afterward, the detection capabilities of PI-MWCNT towards NPs were evaluated through voltammetry experiments under optimal conditions. The differential pulse voltammetry (DPV) curves revealed three distinct anodic peaks in the NPs solution, with linear ranges of 1–300 μM for 2-NP, 0.25–250 μM for 3-NP, and 0.25–400 μM for 4-NP. The limits of detection (LOD) were 0.50 μM for both 2-NP and 3-NP, and 0.64 μM for 4-NP. Furthermore, the proposed electrode material was successfully applied to real samples, achieving recovery rates ranging from 92.9% to 106%. This study could contribute to the development of more efficient and sensitive electrochemical sensors.
期刊介绍:
Chemosphere, being an international multidisciplinary journal, is dedicated to publishing original communications and review articles on chemicals in the environment. The scope covers a wide range of topics, including the identification, quantification, behavior, fate, toxicology, treatment, and remediation of chemicals in the bio-, hydro-, litho-, and atmosphere, ensuring the broad dissemination of research in this field.