Oxygen defect modulating the charge behavior in titanium dioxide for boosting photocatalytic nitrogen fixation performance
作者机构：Institute for Energy ResearchSchool of Chemistry and Chemical EngineeringJiangsu University301 Xuefu RoadZhenjiang212013PR China School of Chemistry and Chemical EngineeringNational Special Superfine Powder Engineering Research CenterNanjing University of Science and TechnologyNanjing210094PR China
出 版 物：《Materials Reports(Energy)》 (材料导报（能源）（英文）)
年 卷 期：2023年第3卷第4期
页 面：46-51页
核心收录：
学科分类：0820[工学-石油与天然气工程] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 070303[理学-有机化学] 0703[理学-化学]
基 金：supported by the National Natural Science Foundation of China(No.22108108,22205108,and No.22108106) China Postdoctoral Science Foundation No.2022M721381
主 题：Titanium dioxide Oxygen vacancies Artificial photosynthesis Nitrogen fixation Charge separation
摘 要：Extremely high-temperature and high-pressure requirement of Haber-Bosch process motivates the search for a sustainable ammonia synthesis approach under mild *** technology is a potential solution to convert N2 to ***,the poor light absorption and low charge carrier separation efficiency in conventional semiconductors are bottlenecks for the application of this ***,a facile synthesis of anatase TiO_(2)nanosheets with an abundance of surface oxygen vacancies(TiO_(2)-OV)via the calcination treatment was *** experiments of the prepared anatase TiO_(2)samples showed that TiO_(2)-OV nanosheets exhibited remarkably increased ammonia yield for solar-driven N2 fixation in pure water,without adding any sacrificial ***,XPS,XRD,UV-Vis DRS,TEM,Raman,and PL techniques were employed to systematically explore the possible enhanced *** revealed that the introduced surface oxygen vacancies significantly extended the light absorption capability in the visible region,decreased the adsorption and activation barriers of inert N2,and improved the separation and transfer efficiency of the photogenerated electronhole ***,a high rate of ammonia evolution in TiO_(2)-OV was *** work offers a promising and sustainable approach for the efficient artificial photosynthesis of ammonia.
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