Abstract
Hexagonal boron nitride (h-BN) nanosheets were synthesized through a facile two-step roasting process by using boric acid and melamine as raw materials under ammonia atmosphere. The average thickness of the nanosheets was 16 nm. The porous h-BN nanosheets displayed enhanced performance for the removal of copper ion (Cu2+) with adsorption capacity up to 819 mg/g. In addition, the excellent performance was also observed during the process of the adsorption in mixed metal ions. The features of numerous amino connections, large specific surface area (∼321 m2/g) and broad range of pore size led to the outstanding adsorption performance.
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