{"title":"紫外光和可见光下铜修饰TiO2光催化降解空气中气态异丙醇的作用","authors":"Parvaneh Nakhostin Panahi, Zahra Karami, Razieh Habibpour, Aligholi Niaei","doi":"10.1007/s12039-025-02382-x","DOIUrl":null,"url":null,"abstract":"<div><p>In this research, TiO<sub>2</sub> and copper-modified TiO<sub>2</sub> were investigated in the process of isopropanol photocatalytic removal from the air. Modification of TiO<sub>2</sub> with copper was carried out using two methods: impregnation and chemical reduction. XRD, XPS, FESEM, EDAX, PL and UV–Vis DRS were used to study the chemical and physical characteristics of TiO<sub>2</sub> and copper-modified TiO<sub>2</sub>. UV–Vis DRS and PL results indicated that copper loading on TiO<sub>2</sub> increases absorption in the visible range and significantly reduces the recombination of photoelectron and hole pairs. XRD and XPS analyses showed that both copper species i.e., Cu<sub>2</sub>O and CuO exist in the Cu<sub><i>x</i></sub>O/TiO<sub>2</sub>(RE) photocatalyst. According to photocatalytic tests, copper-modified TiO<sub>2</sub> exhibited enhanced photocatalytic activity compared to pure TiO<sub>2</sub>, and the optimal photocatalyst (Cu<sub><i>x</i></sub>O(1%)/TiO<sub>2</sub>(RE)) decomposed 100% isopropanol under visible light radiation.</p><h3>Graphical abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 3","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Role of copper in modified TiO2 for photocatalytic degradation of gaseous isopropanol from air under ultraviolet and visible light radiation\",\"authors\":\"Parvaneh Nakhostin Panahi, Zahra Karami, Razieh Habibpour, Aligholi Niaei\",\"doi\":\"10.1007/s12039-025-02382-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this research, TiO<sub>2</sub> and copper-modified TiO<sub>2</sub> were investigated in the process of isopropanol photocatalytic removal from the air. Modification of TiO<sub>2</sub> with copper was carried out using two methods: impregnation and chemical reduction. XRD, XPS, FESEM, EDAX, PL and UV–Vis DRS were used to study the chemical and physical characteristics of TiO<sub>2</sub> and copper-modified TiO<sub>2</sub>. UV–Vis DRS and PL results indicated that copper loading on TiO<sub>2</sub> increases absorption in the visible range and significantly reduces the recombination of photoelectron and hole pairs. XRD and XPS analyses showed that both copper species i.e., Cu<sub>2</sub>O and CuO exist in the Cu<sub><i>x</i></sub>O/TiO<sub>2</sub>(RE) photocatalyst. According to photocatalytic tests, copper-modified TiO<sub>2</sub> exhibited enhanced photocatalytic activity compared to pure TiO<sub>2</sub>, and the optimal photocatalyst (Cu<sub><i>x</i></sub>O(1%)/TiO<sub>2</sub>(RE)) decomposed 100% isopropanol under visible light radiation.</p><h3>Graphical abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":616,\"journal\":{\"name\":\"Journal of Chemical Sciences\",\"volume\":\"137 3\",\"pages\":\"\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-06-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Chemical Sciences\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12039-025-02382-x\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Sciences","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12039-025-02382-x","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Role of copper in modified TiO2 for photocatalytic degradation of gaseous isopropanol from air under ultraviolet and visible light radiation
In this research, TiO2 and copper-modified TiO2 were investigated in the process of isopropanol photocatalytic removal from the air. Modification of TiO2 with copper was carried out using two methods: impregnation and chemical reduction. XRD, XPS, FESEM, EDAX, PL and UV–Vis DRS were used to study the chemical and physical characteristics of TiO2 and copper-modified TiO2. UV–Vis DRS and PL results indicated that copper loading on TiO2 increases absorption in the visible range and significantly reduces the recombination of photoelectron and hole pairs. XRD and XPS analyses showed that both copper species i.e., Cu2O and CuO exist in the CuxO/TiO2(RE) photocatalyst. According to photocatalytic tests, copper-modified TiO2 exhibited enhanced photocatalytic activity compared to pure TiO2, and the optimal photocatalyst (CuxO(1%)/TiO2(RE)) decomposed 100% isopropanol under visible light radiation.
期刊介绍：
Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.
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