近日,我校材料科学与工程学院(文物保护科学与技术学院)碳基功能材料创新团队在光催化研究领域取得重要进展,相关研究成果以“Photocatalytic H2O2 Generation Reaction with A Benchmark Rate at Air-Liquid-Solid Joint Interfaces”为题,发表于国际顶级期刊《Advanced Materials》(IF=29.4)上。我校为论文第一通讯单位,硕士研究生严仕伟(现为华南理工大学博士生)为第一作者,bet体育365官网正规李永副教授、昆士兰科技大学许景三副教授和bet体育365官网正规宋浩杰教授分别为论文通讯作者。该工作的发表提高了我校在光催化材料领域的国际影响力。
电荷复合速度快、双电子氧还原反应选择性低、O2扩散速率低等问题阻碍了光催化产H2O2的实际应用。基于此,本工作创新性提出通过界面工程改善光催化过程中的传质障碍,构建一种气-液-固三相界面催化系统,用于从纯水中高效光催化生成H2O2。其中,以三聚氰胺-三聚氰酸前体(MCP)和聚吡咯(PPy)超分子热解合成花状石墨相碳化氮(Cv-PCN)高选择性的将O2还原为H2O2。随后将其负载的多孔材料表面并进行界面润湿性调控构建气-液-固三相界面光催化体系,该体系大大降低了O2的传质阻力,有效地提高了界面O2浓度,从而极大提高了光生电子与空穴的分离效率和 H2O2的反应动力学。本研究为高效光催化生产H2O2催化体系的设计提供了新的思路。
附:团队近三年代表性论文:
[1] Photocatalytic H2O2 Generation Reaction with A Benchmark Rate at Air-Liquid-Solid Joint Interfaces, Advanced Materials, 2023, 2307967.
https://onlinelibrary.wiley.com/doi/10.1002/adma.202307967
[2] Insight into MoS2-MoN Heterostructure to Accelerate Polysulfide Conversion toward High-Energy-Density Lithium-Sulfur Batteries. Advanced Energy Materials, 2021, 11: 2003314.
https://onlinelibrary.wiley.com/doi/10.1002/aenm.202003314
[3] Transition Metal Compounds Family for Li-S Batteries: The DFT-Guide for Suppressing Polysulfides Shuttle. Advanced Functional Materials, 2023, 33, 202300825
https://onlinelibrary.wiley.com/doi/10.1002/adfm.202300825
[4] Superelastic, Highly Conductive, Superhydrophobic, and Powerful Electromagnetic Shielding Hybrid Aerogels Built from Orthogonal Graphene and Boron Nitride Nanoribbons. ACS NANO, 2022, 16:17049
https://pubs.acs.org/doi/10.1021/acsnano.2c07187
[5] Integrated reduced graphene oxide/polypyrrole hybrid aerogels for simultaneous photocatalytic decontamination and water evaporation. Applide Catalysis B-Environmental. 2022, 301, 120820.
https://www.sciencedirect.com/science/article/pii/S0926337321009450?via%3Dihub
[6] Uncovering the origin of full-spectrum visible-light-responsive polypyrrole supramolecular photocatalysts. Applide Catalysis B-Environmental. 2021, 287, 119926.
https://www.sciencedirect.com/science/article/pii/S0926337321000527?via%3Dihub
[7] Immobilizing Polysulfide via Multiple Active Sites in W18O49 for Li-S batteries by Oxygen Vacancy Engineering. Energy Storage Materials, 2021, 43: 422.
https://www.sciencedirect.com/science/article/pii/S2405829721004426?via%3Dihub
[8] Synergistic regulating of dynamic trajectory and lithiophilic nucleation by Heusler alloy for dendrite-free Li deposition. Energy Storage Materials, 2022, 50: 505.
https://www.sciencedirect.com/science/article/pii/S2405829722002951?via%3Dihub
新闻小贴士:
碳基功能材料创新团队现有教授2人和副教授5人,其中3人入选“2023年度全球前2%顶尖科学家榜单”。主要从事新型碳基纳米复合材料的制备与应用研究。近年来,在Advanced Materials, Advanced Energy Materials, Advanced Functional Materials, Applied Catalysis B: Environmental, Energy Storage Materials, ACS Nano, Journal of Materials Chemistry A, Chemical Engineering Journal等国际期刊发表90余篇高水平论文。指导学生先后获“挑战杯”大学生课外学术科技作品竞赛大赛国家级铜奖、“互联网+”大学生创新创业大赛国家级铜奖、光威杯中国复合材料学会大学生科技创新竞赛二等奖等10余项科技创新奖励。团队具有良好的学术生态环境,始终秉承“开拓创新,合作共赢”的理念,并入选2023年陕西省高校青年创新团队。
(核稿:王卓 编辑:刘倩)