A.S. Karthik , S. Senthil , D. Tamilselvi , R. Rathinam , V. Jeevanantham
{"title":"掺氮 TIO2/g-C3N4 纳米催化剂用于亚甲基蓝染料的光降解","authors":"A.S. Karthik , S. Senthil , D. Tamilselvi , R. Rathinam , V. Jeevanantham","doi":"10.1016/j.jics.2024.101424","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, the ethanol dispersion procedure was implemented to prepare the g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocatalyst structure. Sol-gel synthesis is utilized for synthesizing <em>N</em>–TiO<sub>2</sub> and g-C<sub>3</sub>N<sub>4</sub> via urea thermal decomposition. Physicochemical properties of produced photocatalysts were revealed using PL imaging, UV–vis DRS, XRD, FTIR, SEM, BET, and TEM. Evaluation of photocatalytic activity of synthetic photocatalysts by exposure to sunlight and degradation of methylene blue (MB) dye. g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> NCs showed excellent photocatalytic activity, reaching 96 % MB degradation efficiency in 80 min. g-C<sub>3</sub>N<sub>4</sub> and <em>N</em>–TiO<sub>2</sub> doped form a nanocomposite structure that increases photocatalytic activity, affecting charge separation performance and service life. The system also exhibits the ability to collect visible and ultraviolet light. Even after four consecutive cycles, the efficiency of the MB is still above 85 %. Capture experiments showed that the decomposition of MB was mainly caused by h<sup>+</sup> and O2<sup>2−</sup> radicals. The results of kinetic investigations indicate that the degradation rate of g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocomposites surpasses that of <em>N</em>–TiO<sub>2</sub> nanoparticles.</div></div>","PeriodicalId":17276,"journal":{"name":"Journal of the Indian Chemical Society","volume":"101 11","pages":"Article 101424"},"PeriodicalIF":3.2000,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nitrogen doped TIO2/g-C3N4 nanocatalyst for photodegradation of methylene blue dye\",\"authors\":\"A.S. Karthik , S. Senthil , D. Tamilselvi , R. Rathinam , V. Jeevanantham\",\"doi\":\"10.1016/j.jics.2024.101424\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In this study, the ethanol dispersion procedure was implemented to prepare the g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocatalyst structure. Sol-gel synthesis is utilized for synthesizing <em>N</em>–TiO<sub>2</sub> and g-C<sub>3</sub>N<sub>4</sub> via urea thermal decomposition. Physicochemical properties of produced photocatalysts were revealed using PL imaging, UV–vis DRS, XRD, FTIR, SEM, BET, and TEM. Evaluation of photocatalytic activity of synthetic photocatalysts by exposure to sunlight and degradation of methylene blue (MB) dye. g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> NCs showed excellent photocatalytic activity, reaching 96 % MB degradation efficiency in 80 min. g-C<sub>3</sub>N<sub>4</sub> and <em>N</em>–TiO<sub>2</sub> doped form a nanocomposite structure that increases photocatalytic activity, affecting charge separation performance and service life. The system also exhibits the ability to collect visible and ultraviolet light. Even after four consecutive cycles, the efficiency of the MB is still above 85 %. Capture experiments showed that the decomposition of MB was mainly caused by h<sup>+</sup> and O2<sup>2−</sup> radicals. The results of kinetic investigations indicate that the degradation rate of g-C<sub>3</sub>N<sub>4</sub>/N–TiO<sub>2</sub> nanocomposites surpasses that of <em>N</em>–TiO<sub>2</sub> nanoparticles.</div></div>\",\"PeriodicalId\":17276,\"journal\":{\"name\":\"Journal of the Indian Chemical Society\",\"volume\":\"101 11\",\"pages\":\"Article 101424\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-10-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Indian Chemical Society\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0019452224003042\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Indian Chemical Society","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0019452224003042","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Nitrogen doped TIO2/g-C3N4 nanocatalyst for photodegradation of methylene blue dye
In this study, the ethanol dispersion procedure was implemented to prepare the g-C3N4/N–TiO2 nanocatalyst structure. Sol-gel synthesis is utilized for synthesizing N–TiO2 and g-C3N4 via urea thermal decomposition. Physicochemical properties of produced photocatalysts were revealed using PL imaging, UV–vis DRS, XRD, FTIR, SEM, BET, and TEM. Evaluation of photocatalytic activity of synthetic photocatalysts by exposure to sunlight and degradation of methylene blue (MB) dye. g-C3N4/N–TiO2 NCs showed excellent photocatalytic activity, reaching 96 % MB degradation efficiency in 80 min. g-C3N4 and N–TiO2 doped form a nanocomposite structure that increases photocatalytic activity, affecting charge separation performance and service life. The system also exhibits the ability to collect visible and ultraviolet light. Even after four consecutive cycles, the efficiency of the MB is still above 85 %. Capture experiments showed that the decomposition of MB was mainly caused by h+ and O22− radicals. The results of kinetic investigations indicate that the degradation rate of g-C3N4/N–TiO2 nanocomposites surpasses that of N–TiO2 nanoparticles.
期刊介绍:
The Journal of the Indian Chemical Society publishes original, fundamental, theorical, experimental research work of highest quality in all areas of chemistry, biochemistry, medicinal chemistry, electrochemistry, agrochemistry, chemical engineering and technology, food chemistry, environmental chemistry, etc.