Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 13, 2017
Previous Article Next Article

Accelerated evaporation of water on graphene oxide

Author affiliations

Abstract

Using molecular dynamics simulations, we show that the evaporation of nanoscale volumes of water on patterned graphene oxide is faster than that on homogeneous graphene oxide. The evaporation rate of water is insensitive to variation in the oxidation degree of the oxidized regions, so long as the water film is only distributed on the oxidized regions. The evaporation rate drops when the water film spreads onto the unoxidized regions. Further analysis showed that varying the oxidation degree observably changed the interaction between the outmost water molecules and the solid surface, but the total interaction for the outmost water molecules only changed a very limited amount due to the correspondingly regulated water–water interaction when the water film is only distributed on the oxidized regions. When the oxidation degree is too low and some unoxidized regions are also covered by the water film, the thickness of the water film decreases, which extends the lifetime of the hydrogen bonds for the outmost water molecules and lowers the evaporation rate of the water. The insensitivity of water evaporation to the oxidation degree indicates that we only need to control the scale of the unoxidized and oxidized regions for graphene oxide to regulate the evaporation of nanoscale volumes of water.

Graphical abstract: Accelerated evaporation of water on graphene oxide

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 25 Jan 2017, accepted on 06 Mar 2017 and first published on 06 Mar 2017


Article type: Paper
DOI: 10.1039/C7CP00553A
Citation: Phys. Chem. Chem. Phys., 2017,19, 8843-8847
  •   Request permissions

    Accelerated evaporation of water on graphene oxide

    R. Wan and G. Shi, Phys. Chem. Chem. Phys., 2017, 19, 8843
    DOI: 10.1039/C7CP00553A

Search articles by author