Xiaofei Zhao , Xuefang Li , Zhengjie Li , Xinwei Tian , Yuxin Tang , Xin Zhao , Maozheng He , Jiajie Tang , Xiaorong Wang , Xin Zhou , Fei Xiao , Youzhou He
{"title":"Z-scheme BiOBr/NH2-MIL-125(Ti)异质结增强光催化脱除NO","authors":"Xiaofei Zhao , Xuefang Li , Zhengjie Li , Xinwei Tian , Yuxin Tang , Xin Zhao , Maozheng He , Jiajie Tang , Xiaorong Wang , Xin Zhou , Fei Xiao , Youzhou He","doi":"10.1016/j.matlet.2025.139325","DOIUrl":null,"url":null,"abstract":"<div><div>A binary BiOBr/NH<sub>2</sub>-MIL-125(Ti) (BNM) heterojunction photocatalyst was prepared by <em>in-situ</em> precipitation method for enhanced photocatalytic NO removal. The results showed that BNM-20 achieved a NO degradation efficiency of 68.96%, far exceeding pure BOB (6.47%) and NM-125(Ti) (29.9%), while maintaining stability for five cycles. This is due to the porous framework of NM-125(Ti) enhancing active sites and light collection, while the Z-scheme heterojunction promotes carrier separation, synergistically improving the photocatalytic activity of BNM. In addition, the mechanism of photocatalytic removal of NO was explored through ESR and <em>in-situ</em> FT-IR. This study provides an effective strategy for designing Z-scheme heterojunction photocatalysts for efficient and stable photocatalytic removal of NO.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"402 ","pages":"Article 139325"},"PeriodicalIF":2.7000,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Z-scheme BiOBr/NH2-MIL-125(Ti) heterojunction for enhanced photocatalytic NO removal\",\"authors\":\"Xiaofei Zhao , Xuefang Li , Zhengjie Li , Xinwei Tian , Yuxin Tang , Xin Zhao , Maozheng He , Jiajie Tang , Xiaorong Wang , Xin Zhou , Fei Xiao , Youzhou He\",\"doi\":\"10.1016/j.matlet.2025.139325\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>A binary BiOBr/NH<sub>2</sub>-MIL-125(Ti) (BNM) heterojunction photocatalyst was prepared by <em>in-situ</em> precipitation method for enhanced photocatalytic NO removal. The results showed that BNM-20 achieved a NO degradation efficiency of 68.96%, far exceeding pure BOB (6.47%) and NM-125(Ti) (29.9%), while maintaining stability for five cycles. This is due to the porous framework of NM-125(Ti) enhancing active sites and light collection, while the Z-scheme heterojunction promotes carrier separation, synergistically improving the photocatalytic activity of BNM. In addition, the mechanism of photocatalytic removal of NO was explored through ESR and <em>in-situ</em> FT-IR. This study provides an effective strategy for designing Z-scheme heterojunction photocatalysts for efficient and stable photocatalytic removal of NO.</div></div>\",\"PeriodicalId\":384,\"journal\":{\"name\":\"Materials Letters\",\"volume\":\"402 \",\"pages\":\"Article 139325\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2025-08-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Materials Letters\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0167577X25013552\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Letters","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167577X25013552","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Z-scheme BiOBr/NH2-MIL-125(Ti) heterojunction for enhanced photocatalytic NO removal
A binary BiOBr/NH2-MIL-125(Ti) (BNM) heterojunction photocatalyst was prepared by in-situ precipitation method for enhanced photocatalytic NO removal. The results showed that BNM-20 achieved a NO degradation efficiency of 68.96%, far exceeding pure BOB (6.47%) and NM-125(Ti) (29.9%), while maintaining stability for five cycles. This is due to the porous framework of NM-125(Ti) enhancing active sites and light collection, while the Z-scheme heterojunction promotes carrier separation, synergistically improving the photocatalytic activity of BNM. In addition, the mechanism of photocatalytic removal of NO was explored through ESR and in-situ FT-IR. This study provides an effective strategy for designing Z-scheme heterojunction photocatalysts for efficient and stable photocatalytic removal of NO.
期刊介绍:
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive