biostudies-literatureLian BUniversity of New South Wales5106-5111https://www.ebi.ac.uk/biostudies/studies/S-EPMC5994872biostudies-literatureUnknown9(22)The laminated structure of graphene oxide (GO) confers unique interactions with water molecules which may be utilised in a range of applications that require materials with tuneable hygroscopic properties. The precise role of the expandable interlayer spacing and functional groups in GO laminates has not completely been understood to date. Herein, we report the experimental and theoretical investigations on the adsorption and desorption behaviour of water in GO laminates as a function of relative pressure. We observed that GO imparts high water uptake capacity of up to 0.58 gram of water per gram of GO (g g^-1), which is significantly higher than silica gel as a conventional desiccant material. More interestingly, the adsorption and desorption kinetics of GO is five times higher Chemical scienceExtraordinary water adsorption characteristics of graphene oxide.PMC5994872PS38305De Luca SYou YYoshimura MAlwarappan SSmith SCLian BLeslie GSahajwalla VJoshi RKfalseExtraordinary water adsorption characteristics of graphene oxide.The laminated structure of graphene oxide (GO) confers unique interactions with water molecules which may be utilised in a range of applications that require materials with tuneable hygroscopic properties. The precise role of the expandable interlayer spacing and functional groups in GO laminates has not completely been understood to date. Herein, we report the experimental and theoretical investigations on the adsorption and desorption behaviour of water in GO laminates as a function of relative pressure. We observed that GO imparts high water uptake capacity of up to 0.58 gram of water per gram of GO (g g^-1), which is significantly higher than silica gel as a conventional desiccant material. More interestingly, the adsorption and desorption kinetics of GO is five times higher 2018-01-01T00:00:00Z2018 Jun2025-05-29T21:08:02.915Z2025-05-29T21:08:02.915ZS-EPMC59948722993804210.1039/c8sc00545a