{
    "protocol": "The synthesis of hydrophilic polymers with functional groups involves the use of pulse laser deposition (PLD) where a distance of 4 cm is set between the bulk BP target and the substrate. The chamber is evacuated to around 1.5 x 10^-7 Torr before deposition. The substrate is maintained at a temperature of 150 °C. The BP target is evaporated using a KrF pulse laser at a wavelength of 248 nm at a cycle of 5 Hz. During the deposition, both the BP and the substrate are rotated to ensure uniform film growth. After deposition, the film is cooled to room temperature in a high vacuum chamber.This method is one of the bottom-up approaches for preparing 2D materials, and it comprises solvothermal, hydrothermal, template synthesis, and self-assembly of particles. Hydrothermal synthesis was carried out for functionalized phosphate carbon, which consists of composite carbon with porous support material via a model of hydrothermal approach, preceded by heat treatment."
}