Electrospinning Synthesis of Nano-Scale MgO Fibers and Their Methylene Blue Adsorption Efficiency DOI Open Access

Chunyang Ma,

Hongxin He,

Huaxing Li

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(5), P. 1907 - 1907

Published: Feb. 23, 2025

Water pollution from industrial dyes like methylene blue poses severe environmental and health risks, necessitating effective wastewater treatment methods. Among various adsorbents, MgO stands out due to its high surface area, tunable porosity, superior adsorption capabilities. This research presents the preparation of nano-scale magnesium oxide (MgO) fibers using electrospinning, followed by calcination at temperatures 300 °C, 400 500 600 700 °C. The effects on MgO's characteristics, microstructure, crystalline phases, performance were investigated. SEM TEM analyses revealed that calcined °C possessed most distinct porous structure, with a coarse substantial pores, which enhanced properties. XRD analysis confirmed had highest crystallinity, particularly (200) crystal plane. Notably, BET area properties these fibers, making them highly for applications. Adsorption tests (MB) indicated achieved maximum dye removal efficiency 52.52% an capacity 43.11 mg/g within 90 min. process aligned quasi-second-order kinetic model (R2 = 0.9846) fit Langmuir isotherm 0.991), indicating monolayer chemisorption. study underscores effectiveness demonstrating characteristics are beneficial

Language: Английский

Electrospinning Synthesis of Nano-Scale MgO Fibers and Their Methylene Blue Adsorption Efficiency DOI Open Access

Chunyang Ma,

Hongxin He,

Huaxing Li

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(5), P. 1907 - 1907

Published: Feb. 23, 2025

Water pollution from industrial dyes like methylene blue poses severe environmental and health risks, necessitating effective wastewater treatment methods. Among various adsorbents, MgO stands out due to its high surface area, tunable porosity, superior adsorption capabilities. This research presents the preparation of nano-scale magnesium oxide (MgO) fibers using electrospinning, followed by calcination at temperatures 300 °C, 400 500 600 700 °C. The effects on MgO's characteristics, microstructure, crystalline phases, performance were investigated. SEM TEM analyses revealed that calcined °C possessed most distinct porous structure, with a coarse substantial pores, which enhanced properties. XRD analysis confirmed had highest crystallinity, particularly (200) crystal plane. Notably, BET area properties these fibers, making them highly for applications. Adsorption tests (MB) indicated achieved maximum dye removal efficiency 52.52% an capacity 43.11 mg/g within 90 min. process aligned quasi-second-order kinetic model (R2 = 0.9846) fit Langmuir isotherm 0.991), indicating monolayer chemisorption. study underscores effectiveness demonstrating characteristics are beneficial

Language: Английский

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