Synthesis of nano-octahedral MgO a solvothermal-solid-decomposition method for the removal of methyl orange from aqueous solutions.

Nano magnesium oxide has wide applications, and MgO with (111) facets has wider potential applications than MgO with (100) facets (, in catalysis and adsorption). However, nano MgO with (111) polar faces has not been studied throughly, so the preparation of nano-octahedral MgO (N-O-MgO) with eight exposed (111) facets remains a great challenge. Herein, we successfully synthesised N-O-MgO an effective solvothermal-solid-decomposition method and studied its adsorption performance.