期刊
NATURE NANOTECHNOLOGY
卷 13, 期 7, 页码 602-+出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41565-018-0134-y
关键词
-
资金
- University Grants Commission, Government of India [F.25-1/2013-14 (BSR)/5-22/2007(BSR)]
- US Army Research Office MURI grant [W911NF-11-1-0362]
- Airforce Office of Scientific Research (AFOSR) [FA9550-14-1-0268]
- Sao Paulo Research Foundation (FAPESP) [2016/12340-9]
- Center for Computational Engineering and Sciences at Unicamp through the FAPESP/CEPID Grant [2013/08293-7]
- US Air Force Office of Scientific Research Grant [FA9550-15-1-0236]
- T. L. L. Temple Foundation
- John J. and Rebecca Moores Endowment
- State of Texas through the Texas Center for Superconductivity at the University of Houston
- Shell International Exploration and Production Inc. Game Changer
- New Energies Research and Technology group
- India based neutrino observatory (INO)
- University Grants Commission (UGC), India
With the advent of graphene, the most studied of all two-dimensional materials, many inorganic analogues have been synthesized and are being exploited for novel applications. Several approaches have been used to obtain large-grain, high-quality materials. Naturally occurring ores, for example, are the best precursors for obtaining highly ordered and large-grain atomic layers by exfoliation. Here, we demonstrate a new two-dimensional material 'hematene' obtained from natural iron ore hematite (alpha-Fe2O3), which is isolated by means of liquid exfoliation. The two-dimensional morphology of hematene is confirmed by transmission electron microscopy. Magnetic measurements together with density functional theory calculations confirm the ferromagnetic order in hematene while its parent form exhibits antiferromagnetic order. When loaded on titania nanotube arrays, hematene exhibits enhanced visible light photocatalytic activity. Our study indicates that photogenerated electrons can be transferred from hematene to titania despite a band alignment unfavourable for charge transfer.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据