Work

Effect of precursor concentration on the growth of magnesium oxide nanomaterials by direct heating method

Year: 2024

Type: article

Abstract: Various methods have been developed for the preparation of MgO nanomaterials. However, they often suffer from limitations such as high cost, lengthy synthesis times, and excessive power consumption. In response, a direct heating (DH) method has been developed to address these challenges, enabling rapid (< 10 min) and cost-effective production of MgO nanomaterials. In this study, the DH process was optimized by investigating the influence of precursor solution concentrations (0.01 M to 0.10 M) on the growth of MgO nanomaterials on wire surfaces. Analyses utilizing Fourier Transform Infrared Spectroscopy (FTIR), Energy Dispersive X-ray Spectroscopy (EDX), and X-ray Photoelectron Spectroscopy (XPS) confirmed the formation of MgO. Field Emission Scanning Electron Microscopy (FESEM) revealed that the nanomaterials predominantly nano-walls and particles. The optimized synthesis conditions for MgO nanomaterials requires the heating of 0.10 M Mg(NO 3 ) 2 ·6H 2 O precursor at 50 W.h. for 10 min. Under this specific condition, a favourable surface coverage of 81.54% was achieved where the MgO nanowalls produced has demonstrated promising capability to remove Methylene Blue (MB) dye under UV irradiation. In conclusion, DH technique is a favourable alternative route to synthesize MgO nanomaterial in a simple, cost-and -time efficient and environmentally friendly way.

Source: Discover Catalysis.

DOI: 10.1007/s44344-024-00001-4

Authors: Ai-Ling Ong, Chee-Meng Koe, Jiao Liu, Swee-Yong Pung

Institution: Universiti Sains Malaysia

Language: English

Topic: Magnesium Oxide Properties and Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,290

Funder: Ministry of Higher Education, Malaysia