Preparation,Properties And Application Of Hydrogen-Rich Nanobubble Water

In this paper,a hydrogen nanobubles gas-liquid dispersion system was prepared by using a self-made bubble generator.The following conclusions were obtained through the preparation,properties and application of hydrogen nanobubble aqueous solution.(1)With the self-made bubble generator to prepare hydrogen dispersed system,When the pump time is 5min,Then adjusted the pressure gauge valve to make the number of 4.0bar,Controlled the flow of H2 at 0.2-0.3L/min,and when the volume ratio of polyacrylic acid sodium solution and hydrogen bubbles gas-liquid dispersion was 1:3,At this point,The number of nanobubbles is the largest,and the nanobubble gas-liquid dispersion was the best.(2)Compared with microbubbles produced by cylinder drum bubble,The size of the nanoparticles prepared by the self-made nanobubble generator in the laboratory was mostly 50 nm,and the number of bubbles was 5.08 × 108/mL.(3)By measuring the surface tension of hydrogen bubble water,the reduction potential of nanobubble water at different temperatures,and measuring reduction potential of nanobubble water at different time,the surface tension of hydrogen nanobubble aqueous solution is smaller than the surface tension of water,which is due to the presence of surfactant sodium polyacrylate,the reduction potential varied from-609 mV to-392 mV,Which also proved that the reduction capacity of hydrogen nanobubbles was still relatively strong.(4)Through studying the synthesis of spherical nanosilver particles and blank control experiment,It was concluded that the reducing ability of the mixed solution was hydrogen nanobubble gas-liquid dispersion instead of sodium polyacrylate solution.Then studying the comparison of spherical nanoparticles synthesized by nanobubbles and spherical nanoparticles synthesized by microbubbles,Setting temperature gradient:5 ??10 ?=19 ??25 ??35 ??50 ??60 ??80 ?,It was concluded that the formation of nanosilver particles was not favorable at 5 degrees centigrade,and at low temperature,The monodispersity of silver nanoparticles was relatively poor.and then the ratio of[Ag +]/[R-COO-]was changed.It was found that the higher the proportion of[Ag +]/[R-COO-],the better the monodisperse,Finally,by changing the pH of the mixed solution,it was found that the higher the pH,the stronger the reducing ability of the mixed solution.When the pH was 8.63,the synthesis of silver nanoparticles were relatively good.(5)Finally,the preparation of method of synthetic seeds was explored and the effect of the content of seeds on the synthesis of nanoparticles was studied,Two methods of preparation of silver seed particles and silica microspheres were characterized,and the silver nanoparticles were characterized too,It was concluded that the higher the content of the added seeds,the greater the intensity of the UV-visible absorption peak.