Aligning Fe_(2)O_(3)photo-sheets on TiO_(2)nanofibers with hydrophilic and aerophobic surface for boosting photoelectrochemical performance
作者机构：School of Chemistry and Chemical EngineeringSoutheast UniversityNanjing 211189China School of PhysicsSoutheast UniversityNanjing 211189China SEU-FEI Nano-Pico CenterKey Laboratory of MEMS of Ministry of EducationSoutheast UniversityNanjing 210096China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2023年第16卷第3期
页 面：4178-4187页
核心收录：
学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 0703[理学-化学] 0702[理学-物理学]
基 金：supported by the National Natural Science Foundation of China(No.21975042) the Project of Six Talents Climax Foundation of Jiangsu(No.XCL-082) the Innovation Platform Project Supported by Jiangsu Province(No.6907041203) the Priority Academic Program Development of Jiangsu Higher Education Institutions
主 题：electrospinning nanofibers TiO2 Fe2O3 light harvesting photoelectrochemical
摘 要：Photoelectrochemical(PEC)nanomaterials are critical to producing clean oxygenation or value-added chemical production by utilizing sustainable solar energy,but are always limited by simultaneous integration of architectural engineering and electronic regulation in one *** by density functional theory(DFT)calculations and finite element analysis(FEA),the bioinspired ivy-like Fe_(2)O_(3)heterostructures with enriched oxygen defects on TiO_(2)nanofibers are designed for boosting PEC ***-like Fe_(2)O_(3)photo-sheets remarkably enhanced the light harvesting by multiple light-mater *** oxygen vacancies on Fe_(2)O_(3)photo-sheets could aid the photons catching and promote the reactivity at active *** importantly,demonstrated by a well-designed dynamic observation,the abundant tip-edges within ivy-like Fe_(2)O_(3)photo-sheets enabled the surface of heterostructure with hydrophilic and aerophobic *** functionalized surface allowed the rapid desorption of produced bubbles and thus ensured a high density of unoccupied active sites for electrolyte *** by these attributes,the Fe_(2)O_(3)@TiO_(2)nanofibers delivered an excellent photocurrent of 40.8 mA/mg,high donor density(1.2×10^(18)cm^(−3)),and rapid oxygen production rate(1 mmol/(L∙h)).This work demonstrates a new strategy on nano-structural design for enhancing light-harvesting and making a hydrophilic/aerophobic surface on low-dimensional oxide nanomaterial,holding great potential on designing high-performance PEC devices for producing survival source gas,carbon-neutral fuel,and valuedchemicals.
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