Herein, a novel aloe vera biochar (PBC) with highly developed porous structure was prepared to remove U(VI) in aqueous solution. The specific surface area of PBC was 577.3 m2/g, which was 100 times that of unmodified biochar. It had good environmental adaptability because of its fast removal rate, excellent adsorption performance in a wide pH range and selective adsorption capacity. And it could be recycled. The mechanism of the U(VI) adsorption by PBC was the surface complexation, in which the phosphate groups played a major role. Therefore, t...
