Synthesis of Al(OH) ₃ Nanostructures from Al(OH) ₃ Microagglomerates via Dissolution‐Precipitation Route

Abstract

A facile method was developed to synthesize Al(OH) 3 nanostructures from Al(OH) 3 microagglomerates by dissolution in 9.0 mol·L −1 NaOH at 115°C followed by dilution and aging of the solution at room temperature. The influence of Al(OH) 3 nanoseed and surfactants as sodium dodecyl sulfate (SDS), polyethylene glycol 6000 (PEG6000), and cetyltrimethylammonium bromide (CTAB) on the formation of the Al(OH) 3 nano‐structures was investigated. The experimental results indicated that the Al(OH) 3 microspheres composed of nanoparticles were prepared in the blank experiment, while dispersive Al(OH) 3 nano‐particles with a diameter of 80–100 nm were produced in the presence of Al(OH) 3 nano‐seed and CTAB.