Novel Synthesis of Nano Mg(OH)2 by Means of Hydrothermal Method with Different Surfactants

Zahra Rajabimashhadi; Rahim Naghizadeh; Ashkan Zolriasatein; Carola Esposito Corcione

doi:10.3390/nano13030454

Novel Synthesis of Nano Mg(OH)₂ by Means of Hydrothermal Method with Different Surfactants

Nanomaterials (Basel). 2023 Jan 22;13(3):454. doi: 10.3390/nano13030454.

Authors

Zahra Rajabimashhadi¹, Rahim Naghizadeh¹, Ashkan Zolriasatein², Carola Esposito Corcione³

Affiliations

¹ School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran.
² Non-Metallic Materials Research Department, Niroo Research Institute, Tehran 1466-5517, Iran.
³ Department of Innovation Engineering, University of Salento, 73100 Lecce, Italy.

Abstract

Magnesium hydroxide (MOH) is a widely used inorganic chemical owing to its various properties. Hence, researchers have long studied its synthesis and its unique features. However, the morphological consequences have rarely been studied. Despite having several benefits for synthesizing nanoparticles, the hydrothermal method's main drawbacks are its lengthy processing time and the high cost of raw materials. This research aimed to use more easily obtainable raw materials in a reasonably short time to synthesize MOH in various morphologies. For this purpose, we prepared different samples using the same hydrothermal method to investigate the effects of the precursor and surfactant on the structure, morphology, and size of MOH particles. The results of XRD and FTIR analysis demonstrated that a temperature of 180 °C and a duration of 18 h is not sufficient for MgO as a precursor to obtaining MOH in the hydrothermal method. However, in the presence of different surfactants, MgCl2 resulted in nanoparticles with hexagonal structure and plate, flake, spherical, and disc morphologies.

Keywords: hydrothermal; morphology; particle size distribution; surface modification.

Grants and funding

This work was supported by Iran University of Science and Technology (School of Metallurgy and Materials Engineering) and Niroo Research Institute (Non-metallic Materials Research Department).