Facile Preparation of MgO Nanoparticles by Microwave‐Assisted Sol‐Gel Hydrothermal Method towards the Paraoxon Pollutants Degradation. Issue 15 (19th April 2022)

• Record Type: Journal Article
• Authors: Liu, Shisheng; Cai, Meijie; Wei, Xiaohui; Guo, Minjie; Liu, Shengjun; Lin, Song
• Is Part Of: ChemistrySelect. Volume 7:Issue 15(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-04-19
• Subjects: MgO -- Microwave chemistry -- Nanoparticles -- Paraoxon -- Sol-gel processes; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202200236
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: The nanosized MgO (Mw‐MgO) was synthesized from Mg(OH)2 gel precursor via a microwave‐assisted sol‐gel hydrothermal method. Compared with the commercial MgO, the optimum Mw‐MgO was obtained by the calcining temperature at 500 °C, and the grain size was about 8.31 nm with a higher surface area of 213.5 m 2 /g. Meanwhile, such as‐prepared Mw‐MgO showed an excellent performance towards paraoxon degradation, and the maximum degradation amount was up to 43.62 mg/g@90 min at room temperature. The kinetic degradation trend was consistent with the pseudo‐second‐order model (R 2 >0.99). The degradation mechanism of such Mw‐MgO was also revealed by using nitro blue tetrazolium (NBT) as a probe. Abstract : An optimized microwave‐assisted sol‐gel hydrothermal process to facilely synthesize MgO with relatively small sizes ( ca . 8.6±4.1 nm) and high surface areas (213.5 m 2 /g) is developed, contributing to improved environmental remediation ability towards organophosphorus toxin removal effectively.