Jiexian Xiang, Peng Xu, Jue Wang, Yan Shi, Shitao Yang, Danqi Tang, Senpei Tang, Youji Li
{"title":"通过双场效应协同增强 CN/rBOB 复合材料的光催化过氧化氢生成活性","authors":"Jiexian Xiang, Peng Xu, Jue Wang, Yan Shi, Shitao Yang, Danqi Tang, Senpei Tang, Youji Li","doi":"10.1016/j.jallcom.2024.175476","DOIUrl":null,"url":null,"abstract":"Herein, a novel rod-like bismuth bromide oxide (rBOB) was prepared by using a Bi delayed-release strategy and H capping competition effect. And rBOB was combined with graphite carbon nitride (CN) to construct S-scheme heterojunction material (CN/rBOB). This work focused on the regulation mechanism of the rod-like morphology of rBOB and the photocatalytic HO production (PHP) performance of CN/rBOB under the action of an external magnetic field. The results showed that the magnetic field can significantly increase the photocurrent response and intrinsic carrier concentration of the catalyst. And the magnetic field action improved the PHP of CN/rBOB from 1.81 to 3.31 mmol·g·h. This \"internal electric field-external magnetic field\" synergistic tuning obviously improves the efficiency of photogenerated carrier separation and transport to the surface active sites, which is a simple and useful strategy to construct high-quality photocatalytic systems.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":null,"pages":null},"PeriodicalIF":5.8000,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic enhancement of photocatalytic hydrogen peroxide production activity in CN/rBOB composite through double field effect\",\"authors\":\"Jiexian Xiang, Peng Xu, Jue Wang, Yan Shi, Shitao Yang, Danqi Tang, Senpei Tang, Youji Li\",\"doi\":\"10.1016/j.jallcom.2024.175476\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Herein, a novel rod-like bismuth bromide oxide (rBOB) was prepared by using a Bi delayed-release strategy and H capping competition effect. And rBOB was combined with graphite carbon nitride (CN) to construct S-scheme heterojunction material (CN/rBOB). This work focused on the regulation mechanism of the rod-like morphology of rBOB and the photocatalytic HO production (PHP) performance of CN/rBOB under the action of an external magnetic field. The results showed that the magnetic field can significantly increase the photocurrent response and intrinsic carrier concentration of the catalyst. And the magnetic field action improved the PHP of CN/rBOB from 1.81 to 3.31 mmol·g·h. This \\\"internal electric field-external magnetic field\\\" synergistic tuning obviously improves the efficiency of photogenerated carrier separation and transport to the surface active sites, which is a simple and useful strategy to construct high-quality photocatalytic systems.\",\"PeriodicalId\":344,\"journal\":{\"name\":\"Journal of Alloys and Compounds\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.8000,\"publicationDate\":\"2024-07-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Alloys and Compounds\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1016/j.jallcom.2024.175476\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2024.175476","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synergistic enhancement of photocatalytic hydrogen peroxide production activity in CN/rBOB composite through double field effect
Herein, a novel rod-like bismuth bromide oxide (rBOB) was prepared by using a Bi delayed-release strategy and H capping competition effect. And rBOB was combined with graphite carbon nitride (CN) to construct S-scheme heterojunction material (CN/rBOB). This work focused on the regulation mechanism of the rod-like morphology of rBOB and the photocatalytic HO production (PHP) performance of CN/rBOB under the action of an external magnetic field. The results showed that the magnetic field can significantly increase the photocurrent response and intrinsic carrier concentration of the catalyst. And the magnetic field action improved the PHP of CN/rBOB from 1.81 to 3.31 mmol·g·h. This "internal electric field-external magnetic field" synergistic tuning obviously improves the efficiency of photogenerated carrier separation and transport to the surface active sites, which is a simple and useful strategy to construct high-quality photocatalytic systems.
期刊介绍:
The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.