材料科学
二氧化锡
二氧化钛
锂(药物)
光催化
纳米颗粒
氢
氧化物
铈
锌
氧化铈
纳米技术
化学工程
化学
冶金
催化作用
有机化学
内分泌学
工程类
医学
生物化学
作者
Gang Ou,Yue Xu,Bo Wen,Rui Lin,Binghui Ge,Yan Tang,Yuwei Liang,Cheng Yang,Kai Huang,Di Zu,Rong Yu,Wenxing Chen,Jun Li,Hui Wu,Limin Liu,Yadong Li
标识
DOI:10.1038/s41467-018-03765-0
摘要
Abstract Defects can greatly influence the properties of oxide materials; however, facile defect engineering of oxides at room temperature remains challenging. The generation of defects in oxides is difficult to control by conventional chemical reduction methods that usually require high temperatures and are time consuming. Here, we develop a facile room-temperature lithium reduction strategy to implant defects into a series of oxide nanoparticles including titanium dioxide (TiO 2 ), zinc oxide (ZnO), tin dioxide (SnO 2 ), and cerium dioxide (CeO 2 ). Our lithium reduction strategy shows advantages including all-room-temperature processing, controllability, time efficiency, versatility and scalability. As a potential application, the photocatalytic hydrogen evolution performance of defective TiO 2 is examined. The hydrogen evolution rate increases up to 41.8 mmol g −1 h −1 under one solar light irradiation, which is ~3 times higher than that of the pristine nanoparticles. The strategy of tuning defect oxides used in this work may be beneficial for many other related applications.
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