부산대학교 도서관

Technical research on electrochemical acid-free desorption of boron is imminent, and layered nickelhydroxide is a potential boron-responsive active electrode material. In this paper, nickel hydroxidewas used to remove boron from aqueous resources by electro-assisted and conventional adsorptionmethods. The option of conditions by nickel hydroxide adsorption for boron is mild (pH: 7 9) withan exothermic process. Interestingly, the synergistic effect of physical and chemical adsorption improvesthe adsorption rate and adsorption capacity of nickel hydroxide for boron under the action of the electricfield, and the adsorption performance is better at low voltage (0.2 0.4 V). The equilibrium time of theelectro-assisted method is 4 times shorter than conventional adsorption methods, and the maximumadsorption capacity can reach 57.5 mg/g than conventional adsorption (45.4 mg/g). In addition, the nickelhydroxide has selectivity in high-concentration anion solutions and can be easily regenerated by an alkalinesolution. Therefore, it is expected that nickel hydroxide with the electro-assisted method could be apotential approach for the high-efficiency and eco-friendly removal of boron.