多策略提升卤化氧铋活性材料的光电性能及其在光电化学领域的应用进展  

Engineering Multiple Optimization Strategy on Bismuth Oxyhalide Photoactive Materials for Efficient Photoelectrochemical Applications

作　　者：严鹏程 王鹏 黄婧 莫曌 徐丽 陈芸 张瑜 齐志冲 许晖 李赫楠 Pengcheng Yan;Peng Wang;Jing Huang;Zhao Mo;Li Xu;Yun Chen;Yu Zhang;Zhichong Qi;Hui Xu;Henan Li(Institute for Energy Research,School of Materials Science and Engineering,School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang 212013,Jiangsu Province,China)

机构地区：[1]江苏大学能源研究院,材料科学与工程学院,化学与化工学院,江苏镇江212013

出　　处：《物理化学学报》2025年第2期48-80,共33页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(22202086,22208129);江苏省自然科学基金(BK20210774);江苏省和教育部共建现代农业装备协同创新中心(XTCX2029)资助项目。

摘　　要：光电化学(PEC)技术作为一种简单的太阳能转换装置,是解决环境和能源挑战最有前途的方法之一。PEC技术主要涉及到在光照射下光活性材料被激发导致载流子生成和电荷转移,进而发生光电转换的过程,活性材料在整个系统中起着核心作用。因此,获得高效PEC性能的关键是设计和合成高光电活性材料。光活性材料的光电转化效率主要取决于较宽的光吸收响应范围和较快的光生载流子分离和传递速率。常见的光敏半导体可以作为光电活性材料,包括金属氧化物、金属硫化物、有机小分子和有机聚合物等。但是由于单个半导体材料的固有局限性,难以满足不断增长的检测需求。探索具有特定结构组成的功能复合材料可以克服单个半导体材料的性能缺陷。此外,太阳光谱中紫外光区仅占约5%,而可见光占比约45%。研发可见光驱动的光电活性材料例如银基、铋基、有机聚合物材料等对于PEC技术的商业应用具有更重要意义。由于BiOX(X=Cl,Br,I)基材料具有带隙可调、独特的层状结构、无毒性、光吸收范围宽、光稳定性优异等特点,基于BiOX(X=Cl,Br,I)的PEC技术已成为研究热点。本文介绍了BiOX(X=Cl,Br,I)基材料的理化性质,从提升太阳光的利用率、抑制光生电子和空穴的复合着手,从表面和界面两个角度讨论了BiOX(X=Cl,Br,I)基材料的改性方法,重点介绍了其在微结构调控、表面缺陷、官能团修饰、金属沉积、杂原子掺杂和异质结构建等方面的研究进展。通过不同的设计策略,可以有效地提高BiOX(X=Cl,Br,I)光生载流子的分离效率,从而提高其PEC性能。介绍了改性BiOX(X=Cl,Br,I)在PEC传感、光电水分解、光电催化降解、CO_(2)还原、固氮和光催化燃料电池等方面的应用。最后,讨论了BiOX(X=Cl,Br,I)材料在上述应用中面临的挑战,并对BiOX(X=Cl,Br,I)材料未来的研究和实际应用进行了展望。The photoelectrochemical(PEC)technique,as a simple solar energy conversion device,is one of the most promising solutions for addressing both environmental and energy challenges.PEC technique mainly involves the photoconversion process of photoactive materials through carrier excitation and charge transfer under light irradiation,and the active material plays a central role in the entire system.The design and synthesis of highly PEC active materials is crucial for achieving efficient PEC performance.The photoelectric conversion efficiency of photoactive materials mainly depends on two aspects:first,the broad range of light absorption response;second,the rapid separation/transfer rate of photogenerated carriers.Common photosensitive semiconductors can be used as photoelectric active materials,including metal oxides,metal sulfides,organic small molecules and organic polymers.However,achieving a high photoelectric conversion efficiency is challenging due to the inherent limitations of using a single semiconductor material.Exploring functional composites with specific structural compositions can overcome the performance deficiencies of individual semiconductor materials.In addition,the ultraviolet region of the solar spectrum accounts for only about 5%,while visible light accounts for approximately 45%.The development of PEC active materials that can be driven by visible light,such as silver,bismuth,and organic polymer materials,is crucial for the commercial application of PEC technique.Due to the characteristics of bismuth oxyhalide BiOX(X=Cl,Br,I)-based materials,such as an adjustable band gap,a unique layered structure,non-toxicity,a wide light absorption range and outstanding light stability,the PEC technique based on BiOX(X=Cl,Br,I)has become a popular research topic.In this paper,the physicochemical properties of BiOX(X=Cl,Br,I)-based materials are reviewed.The methods used to modify BiOX(X=Cl,Br,I)-based materials from the perspectives of surface and interface are discussed.These modifications aim to improve th

关 键 词：卤化氧铋 光电化学性能 电荷分离 传感器 异质结 

分 类 号：O646[理学—物理化学]