{"title":"新型Ag3VO4/MIL-125/g-C3N4复合材料在可见光下降解污染物的光催化活性增强","authors":"Yuning Liang, Baohui Wang, Tongxin Xiao, Boyin Zhai","doi":"10.1134/S0036024425701110","DOIUrl":null,"url":null,"abstract":"<p>In this work, we have fabricated a novel Ag<sub>3</sub>VO<sub>4</sub>/MIL-125(Ti)/g-C<sub>3</sub>N<sub>4</sub> photocatalyst by two-step facile solvothermal synthesis method, which characterized by XRD, SEM, TEM, FT-IR, XPS, BET, UV‒Vis DRS, and PL. The photocatalytic degradation activity of as-prepared materials was studied via decomposing Rh B, and the possible mechanism of photocatalytic degradation was put forward. The result displayed that the specific surface area of a series of composites is larger than that of the single Ag<sub>3</sub>VO<sub>4</sub> (<i>S</i><sub>BET</sub> = 9.374 m<sup>2</sup>/g) and g-C<sub>3</sub>N<sub>4</sub> (<i>S</i><sub>BET</sub> = 12.26 m<sup>2</sup>/g), and the photocatalytic efficiency is much higher than that of pure Ag<sub>3</sub>VO<sub>4</sub>, MIL-125(Ti), and g-C<sub>3</sub>N<sub>4</sub>. Among them, the photocatalytic activity of AMG-4 composites (<i>S</i><sub>BET</sub> = 58.603 m<sup>2</sup>/g, <i>E</i><sub>g</sub> = 2.71 eV) is the highest, about 15.2, 18.2, and 6.22 times of pure Ag<sub>3</sub>VO<sub>4</sub>, MIL-125(Ti), and g-C<sub>3</sub>N<sub>4</sub>, respectively. At the same time, the Ag<sub>3</sub>VO<sub>4</sub>/MIL-125(Ti)/g-C<sub>3</sub>N<sub>4</sub> composite can maintain a stable photocatalytic activity and structure after five cycles.</p>","PeriodicalId":767,"journal":{"name":"Russian Journal of Physical Chemistry A","volume":"99 7","pages":"1705 - 1716"},"PeriodicalIF":0.8000,"publicationDate":"2025-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhanced Photocatalytic Activity of a Novel Ag3VO4/MIL-125/g-C3N4 Composite for the Degradation of Pollutants under Visible Light Irradiation\",\"authors\":\"Yuning Liang, Baohui Wang, Tongxin Xiao, Boyin Zhai\",\"doi\":\"10.1134/S0036024425701110\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this work, we have fabricated a novel Ag<sub>3</sub>VO<sub>4</sub>/MIL-125(Ti)/g-C<sub>3</sub>N<sub>4</sub> photocatalyst by two-step facile solvothermal synthesis method, which characterized by XRD, SEM, TEM, FT-IR, XPS, BET, UV‒Vis DRS, and PL. The photocatalytic degradation activity of as-prepared materials was studied via decomposing Rh B, and the possible mechanism of photocatalytic degradation was put forward. The result displayed that the specific surface area of a series of composites is larger than that of the single Ag<sub>3</sub>VO<sub>4</sub> (<i>S</i><sub>BET</sub> = 9.374 m<sup>2</sup>/g) and g-C<sub>3</sub>N<sub>4</sub> (<i>S</i><sub>BET</sub> = 12.26 m<sup>2</sup>/g), and the photocatalytic efficiency is much higher than that of pure Ag<sub>3</sub>VO<sub>4</sub>, MIL-125(Ti), and g-C<sub>3</sub>N<sub>4</sub>. Among them, the photocatalytic activity of AMG-4 composites (<i>S</i><sub>BET</sub> = 58.603 m<sup>2</sup>/g, <i>E</i><sub>g</sub> = 2.71 eV) is the highest, about 15.2, 18.2, and 6.22 times of pure Ag<sub>3</sub>VO<sub>4</sub>, MIL-125(Ti), and g-C<sub>3</sub>N<sub>4</sub>, respectively. At the same time, the Ag<sub>3</sub>VO<sub>4</sub>/MIL-125(Ti)/g-C<sub>3</sub>N<sub>4</sub> composite can maintain a stable photocatalytic activity and structure after five cycles.</p>\",\"PeriodicalId\":767,\"journal\":{\"name\":\"Russian Journal of Physical Chemistry A\",\"volume\":\"99 7\",\"pages\":\"1705 - 1716\"},\"PeriodicalIF\":0.8000,\"publicationDate\":\"2025-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Physical Chemistry A\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0036024425701110\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry A","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S0036024425701110","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Enhanced Photocatalytic Activity of a Novel Ag3VO4/MIL-125/g-C3N4 Composite for the Degradation of Pollutants under Visible Light Irradiation
In this work, we have fabricated a novel Ag3VO4/MIL-125(Ti)/g-C3N4 photocatalyst by two-step facile solvothermal synthesis method, which characterized by XRD, SEM, TEM, FT-IR, XPS, BET, UV‒Vis DRS, and PL. The photocatalytic degradation activity of as-prepared materials was studied via decomposing Rh B, and the possible mechanism of photocatalytic degradation was put forward. The result displayed that the specific surface area of a series of composites is larger than that of the single Ag3VO4 (SBET = 9.374 m2/g) and g-C3N4 (SBET = 12.26 m2/g), and the photocatalytic efficiency is much higher than that of pure Ag3VO4, MIL-125(Ti), and g-C3N4. Among them, the photocatalytic activity of AMG-4 composites (SBET = 58.603 m2/g, Eg = 2.71 eV) is the highest, about 15.2, 18.2, and 6.22 times of pure Ag3VO4, MIL-125(Ti), and g-C3N4, respectively. At the same time, the Ag3VO4/MIL-125(Ti)/g-C3N4 composite can maintain a stable photocatalytic activity and structure after five cycles.
期刊介绍：
Russian Journal of Physical Chemistry A. Focus on Chemistry (Zhurnal Fizicheskoi Khimii), founded in 1930, offers a comprehensive review of theoretical and experimental research from the Russian Academy of Sciences, leading research and academic centers from Russia and from all over the world.
Articles are devoted to chemical thermodynamics and thermochemistry, biophysical chemistry, photochemistry and magnetochemistry, materials structure, quantum chemistry, physical chemistry of nanomaterials and solutions, surface phenomena and adsorption, and methods and techniques of physicochemical studies.
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