Formation of BaF2 microcrystals as superhydrophobic materials via a hydrothermal method

Abstract

Controllable BaF 2 microcrystals with super-hydrophobic property have been successfully synthesized via a facile hydrothermal process. XRD, SEM and CA are used to study the structure, morphology and the hydrophobic properties of the BaF 2 materials. The effects of reaction time, surfactants and pH are also detailed investigated in order to get a series of accurate reaction conditions for the preparation of BaF 2 material. The results show that uniform BaF 2 tetragonal phase structure was fabricated when the reaction temperature was controlled at 180 o C for 24 h. In addition, the BaF 2 materials showed excellent super-hydrophobic properties. The results about the in uence of time and substrates exhibit that the sample can maintain the stable super-hydrophobic property for over 10 days. As a promising super hydrophobic materials, the studies of BaF 2 reported in this paper is quite practical and it has a certain guiding meaning for the future study about super hydrophobic materials.