Bottom-Up Preparation of Ultrathin 2D Aluminum Oxide Nanosheets by Duplicating Graphene Oxide

Adv Mater. 2016 Feb 24;28(8):1703-8. doi: 10.1002/adma.201504484. Epub 2015 Dec 17.

Abstract

2D ultrathin aluminum oxide (2D-Al2O3) nanosheets are prepared by duplicating graphene oxide. An amorphous precursor of the hydroxide of aluminum is first deposited onto graphene oxide sheets, which are then converted into 2D-Al2 O3 nanosheets by calcination, while the graphene oxide is removed. The 2D-Al2O3 nanosheets have a large specific surface area and a superior adsorption capacity to fluoride ions.

Keywords: aluminum oxide nanosheets; fluoride adsorption; graphene oxide; graphene-like materials.