Synergistic Photothermal‐Photocatalytic Accordion‐Like Mo2AlB2 MBene Membrane for High‐Efficiency Solar‐Powered Water Remediation

IF 19 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Advanced Functional Materials Pub Date : 2025-09-08 DOI:10.1002/adfm.202518856

Ruiqi Zhao, Xushuai Chen, Xi Chen, Panpan Zhang, Chunjia Luo, Min Chao, Luke Yan

{"title":"Synergistic Photothermal‐Photocatalytic Accordion‐Like Mo2AlB2 MBene Membrane for High‐Efficiency Solar‐Powered Water Remediation","authors":"Ruiqi Zhao, Xushuai Chen, Xi Chen, Panpan Zhang, Chunjia Luo, Min Chao, Luke Yan","doi":"10.1002/adfm.202518856","DOIUrl":null,"url":null,"abstract":"Addressing the global freshwater crisis demands advanced solutions where solar‐driven interfacial evaporation (SDIE) shows promise, yet integrated photothermal‐photocatalytic synergy within a single platform remains fundamentally challenging. An accordion‐like Mo2AlB2 MBene is pioneered and engineered into a crosslinked MBene/Polyvinylachohol (PVA)/meso‐tetra (4‐carboxyphenyl) porphyrin (TCPP) composite membrane (MPTM) that synergistically unifies solar harvesting and catalytic degradation. This architecture leverages accordion‐like MBene nanosheets and interfacial porphyrin coordination to establish a dynamic hydrophilic network with exceptional broadband absorption (93.3% average, 200–2500 nm). Through Schottky junction formation and charge redistribution, the system achieves unprecedented solar evaporation rates (2.24 kg m−2 h−1 under 1 sun) while concurrently generating reactive oxygen species (•OH/•O2−) that degrade 98.7% organic pollutants (10 ppm rhodamine B) in 2 h. The MPTM sustains > 85% evaporation efficiency during long‐term stability operation (Bohai seawater, 200 h) with < 4% efficiency decay, establishing a new paradigm for solar‐powered water purification.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"34 1","pages":""},"PeriodicalIF":19.0000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Functional Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1002/adfm.202518856","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Addressing the global freshwater crisis demands advanced solutions where solar‐driven interfacial evaporation (SDIE) shows promise, yet integrated photothermal‐photocatalytic synergy within a single platform remains fundamentally challenging. An accordion‐like Mo2AlB2 MBene is pioneered and engineered into a crosslinked MBene/Polyvinylachohol (PVA)/meso‐tetra (4‐carboxyphenyl) porphyrin (TCPP) composite membrane (MPTM) that synergistically unifies solar harvesting and catalytic degradation. This architecture leverages accordion‐like MBene nanosheets and interfacial porphyrin coordination to establish a dynamic hydrophilic network with exceptional broadband absorption (93.3% average, 200–2500 nm). Through Schottky junction formation and charge redistribution, the system achieves unprecedented solar evaporation rates (2.24 kg m−2 h−1 under 1 sun) while concurrently generating reactive oxygen species (•OH/•O2−) that degrade 98.7% organic pollutants (10 ppm rhodamine B) in 2 h. The MPTM sustains > 85% evaporation efficiency during long‐term stability operation (Bohai seawater, 200 h) with < 4% efficiency decay, establishing a new paradigm for solar‐powered water purification.

查看原文本刊更多论文

协同光热-光催化手风琴状Mo2AlB2 MBene膜用于高效太阳能水修复

解决全球淡水危机需要先进的解决方案，其中太阳能驱动界面蒸发（SDIE）显示出希望，但在单一平台内集成光热-光催化协同作用仍然具有根本性的挑战性。手风琴状Mo2AlB2 MBene率先被设计成交联MBene/聚乙烯醇(PVA)/中四（4 -羧基苯基）卟啉（TCPP）复合膜（MPTM），协同统一太阳能收集和催化降解。这种结构利用手风琴状的MBene纳米片和界面卟啉配位来建立一个具有特殊宽带吸收（平均93.3%,200-2500 nm）的动态亲水性网络。通过Schottky结的形成和电荷再分配，该系统实现了前所未有的太阳能蒸发速率（在1个太阳下2.24 kg m−2 h−1），同时产生活性氧（•OH/•O2−），在2小时内降解98.7%的有机污染物（10 ppm罗丹明B）。MPTM在长期稳定运行（渤海海水，200小时）中保持85%的蒸发效率，效率衰减4%，建立了太阳能水净化的新范例。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.