{"title":"Bi2O3/Cs3PW12O40复合材料在可见光下光催化降解罗丹明B及其增强的光催化活性","authors":"Jiaxuan Wang, Daoxin Wu, Jialun Wu, Mengtian Duan, Haixia Tong","doi":"10.1007/s10854-022-08932-0","DOIUrl":null,"url":null,"abstract":"<div><p>A novel Bi<sub>2</sub>O<sub>3</sub>/Cs<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> (Bi<sub>2</sub>O<sub>3</sub>/CsPW) composite was prepared by depositing Bi<sub>2</sub>O<sub>3</sub> on the surface of spherical Cs<sub>3</sub>PW<sub>12</sub>O<sub>40</sub>. The synthesized photocatalyst was characterized using XRD, XPS, FT-IR, BET, SEM, TEM, and UV–Vis. The results revealed that the composite was a typical Keggin-type photocatalyst. Compared with pure Bi<sub>2</sub>O<sub>3</sub> and CsPW, the composite exhibited high photocatalytic degradation activity for rhodamine B (RhB). The 10% Bi<sub>2</sub>O<sub>3</sub>/CsPW nanocomposite could decompose 92.7% of RhB under visible-light irradiation for 240 min. The improved photocatalytic degradation efficiency is mainly due to the enhanced absorption of visible-light and effective separation of photo-induced carriers caused by heterojunction formation. The active species capture tests confirmed that RhB photodegradation using Bi<sub>2</sub>O<sub>3</sub>/CsPW composite was mainly controlled by h<sup>+</sup> and·O<sup>2−</sup> oxidation reactions. Furthermore, Bi<sub>2</sub>O<sub>3</sub>/CsPW composite displayed good stability under cyclic experiments.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"33 27","pages":"21396 - 21408"},"PeriodicalIF":2.8000,"publicationDate":"2022-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Photocatalytic degradation of rhodamine B by Bi2O3/Cs3PW12O40 composite under visible-light irradiation and its enhanced photocatalytic activity\",\"authors\":\"Jiaxuan Wang, Daoxin Wu, Jialun Wu, Mengtian Duan, Haixia Tong\",\"doi\":\"10.1007/s10854-022-08932-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A novel Bi<sub>2</sub>O<sub>3</sub>/Cs<sub>3</sub>PW<sub>12</sub>O<sub>40</sub> (Bi<sub>2</sub>O<sub>3</sub>/CsPW) composite was prepared by depositing Bi<sub>2</sub>O<sub>3</sub> on the surface of spherical Cs<sub>3</sub>PW<sub>12</sub>O<sub>40</sub>. The synthesized photocatalyst was characterized using XRD, XPS, FT-IR, BET, SEM, TEM, and UV–Vis. The results revealed that the composite was a typical Keggin-type photocatalyst. Compared with pure Bi<sub>2</sub>O<sub>3</sub> and CsPW, the composite exhibited high photocatalytic degradation activity for rhodamine B (RhB). The 10% Bi<sub>2</sub>O<sub>3</sub>/CsPW nanocomposite could decompose 92.7% of RhB under visible-light irradiation for 240 min. The improved photocatalytic degradation efficiency is mainly due to the enhanced absorption of visible-light and effective separation of photo-induced carriers caused by heterojunction formation. The active species capture tests confirmed that RhB photodegradation using Bi<sub>2</sub>O<sub>3</sub>/CsPW composite was mainly controlled by h<sup>+</sup> and·O<sup>2−</sup> oxidation reactions. Furthermore, Bi<sub>2</sub>O<sub>3</sub>/CsPW composite displayed good stability under cyclic experiments.</p></div>\",\"PeriodicalId\":646,\"journal\":{\"name\":\"Journal of Materials Science: Materials in Electronics\",\"volume\":\"33 27\",\"pages\":\"21396 - 21408\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2022-08-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Science: Materials in Electronics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10854-022-08932-0\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-022-08932-0","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Photocatalytic degradation of rhodamine B by Bi2O3/Cs3PW12O40 composite under visible-light irradiation and its enhanced photocatalytic activity
A novel Bi2O3/Cs3PW12O40 (Bi2O3/CsPW) composite was prepared by depositing Bi2O3 on the surface of spherical Cs3PW12O40. The synthesized photocatalyst was characterized using XRD, XPS, FT-IR, BET, SEM, TEM, and UV–Vis. The results revealed that the composite was a typical Keggin-type photocatalyst. Compared with pure Bi2O3 and CsPW, the composite exhibited high photocatalytic degradation activity for rhodamine B (RhB). The 10% Bi2O3/CsPW nanocomposite could decompose 92.7% of RhB under visible-light irradiation for 240 min. The improved photocatalytic degradation efficiency is mainly due to the enhanced absorption of visible-light and effective separation of photo-induced carriers caused by heterojunction formation. The active species capture tests confirmed that RhB photodegradation using Bi2O3/CsPW composite was mainly controlled by h+ and·O2− oxidation reactions. Furthermore, Bi2O3/CsPW composite displayed good stability under cyclic experiments.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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