Rajabimashhadi Zahra, Naghizadeh Rahim, Zolriasatein Ashkan, Esposito Corcione Carola
School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Tehran 16846-13114, Iran.
Non-Metallic Materials Research Department, Niroo Research Institute, Tehran 1466-5517, Iran.
Nanomaterials (Basel). 2023 Jan 22;13(3):454. doi: 10.3390/nano13030454.
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.
氢氧化镁（MOH）因其多种特性而成为一种广泛使用的无机化学品。因此，研究人员长期以来一直在研究其合成方法及其独特特性。然而，其形态学方面的影响却鲜有研究。尽管水热法在合成纳米颗粒方面有诸多优点，但其主要缺点是处理时间长和原材料成本高。本研究旨在使用更容易获得的原材料，在合理的短时间内合成各种形态的MOH。为此，我们采用相同的水热法制备了不同的样品，以研究前驱体和表面活性剂对MOH颗粒的结构、形态和尺寸的影响。XRD和FTIR分析结果表明，在水热法中，以氧化镁作为前驱体，180°C的温度和18小时的时长不足以获得MOH。然而，在不同表面活性剂存在的情况下，氯化镁会生成具有六边形结构以及片状、鳞片状、球形和盘状形态的纳米颗粒。
