Effect of Nano-MgO, Biochar and Humic Acid on Boron Stabilization in Soil in Bath and Leaching Columns

Mahdavi, Shahriar; Tarhani, Zohre; Sayyahzadeh, Amir Hossein; Peikam, Elahe Naderi

doi:10.1080/15320383.2020.1752145

Cited by 5 publications

(1 citation statement)

References 53 publications

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“…Metallic oxide nanoparticles have been extensively investigated as potential sorbents, thanks to their exceptional characteristics and high efcacy [24,25]. In this regard, magnesium oxide (MgO) has been examined due to its high capacity for the removal of metal ions in aqueous solutions [26,27]. Recently, nanosized MgO nanoparticles have been wieldy used as nanosorbent to remediate contaminated water, owing to the large surface area and negligible impact on the environment [28,29].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis Ca-MgO Nanosorbent for the Uptake of Cobalt Ions from Aqueous Media

Al-Awaji

Boukriba

Idriss

et al. 2022

Advances in Materials Science and Engineering

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Ca-doped magnesium oxide nanosorbent has been prepared by sol-gel in the presence of gum arabic extract and assessed for the removal of cobalt ions (Co (II)) from aqueous media. X-ray diffraction analysis indicates the formation of MgO and CaO composites with a mean crystallite size of 6 nm having a large surface area of 50 m2/g. Scanning and transmission electron microscopy observations reveal spherical-shaped particles at the nanoscale around 20 nm. Besides, X-ray photoelectron spectroscopy and Fourier transform infrared analyses manifest the existence of functional groups, which will facilitate the adsorption of metal ions. The adsorption capability of the CaO-MgO nanosorbent achieved 469.5 mg/g for Co (II) ions under optimum operating conditions. Furthermore, the experimental data elucidate that the adsorption process is primarily diffusion-based and that both intraparticle and boundary layer diffusion appear to play a key role in the rate-controlling step. The findings of this study highlight the remediation of contaminated water by cobalt ions by CaO-MgO nanostructure and can be extended to other metal ions and organic pollutants.

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