Urea-Assisted Synthesis of Nanospherical and Plate-Like Magnesium Oxides for Efficient Removal of Reactive Dye Wastes

Joint Authors

Randiligama, H. M. S. P.
Mantilaka, M. M. M. G. P. G.
Palihawadana, T. C.

Source

Journal of Nanomaterials

Issue

Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2020-12-17

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Chemistry
Civil Engineering

Abstract EN

Nanospherical and plate-like magnesium oxide has been successfully synthesized by urea precipitation method for the first time.

A magnesium oxide precursor was prepared by heating MgCl2 solution with urea for 12 hours at 90°C.

Then the calcined precursor was analysed by Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), and high-resolution transmission electron microscopy (HR-TEM).

In the presence of the nonionic surfactant Triton X-100 in the system, the reaction yielded in nanospheres of MgO contrast to the plate-like MgO in the absence of the surfactant.

The precursor and the calcined product appeared in similar morphologies under SEM in both cases with a slight reduction of size upon calcination.

The final product was confirmed as MgO using XRD and FT-IR spectroscopic methods.

In TGA, both samples showed similar mass loss values upon elimination of adsorbed water molecules and decomposition of the precursor into MgO; however, the nanospherical MgO sample showed an additional weight loss due to elimination of the associated surfactant molecules.

The efficiency of removing reactive dye wastes was quantified by UV-visible spectroscopy using reactive yellow dye.

Plate-like MgO showed a porous structure under HR-TEM analysis in the dye adsorption study, and both plate-like and nanospherical MgO showed good dye adsorption capability.

MgO nanospheres showed higher capacity of dye adsorption compared to plate-like MgO, explained by its higher surface are-to-volume ratio, while the plate-like MgO also performed well due to having a nanoporous structure.

These nanomaterials will offer high potential in purifying waste water and as well in recovering expensive dye products.

American Psychological Association (APA)

Randiligama, H. M. S. P.& Mantilaka, M. M. M. G. P. G.& Palihawadana, T. C.. 2020. Urea-Assisted Synthesis of Nanospherical and Plate-Like Magnesium Oxides for Efficient Removal of Reactive Dye Wastes. Journal of Nanomaterials،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1188497

Modern Language Association (MLA)

Randiligama, H. M. S. P.…[et al.]. Urea-Assisted Synthesis of Nanospherical and Plate-Like Magnesium Oxides for Efficient Removal of Reactive Dye Wastes. Journal of Nanomaterials No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1188497

American Medical Association (AMA)

Randiligama, H. M. S. P.& Mantilaka, M. M. M. G. P. G.& Palihawadana, T. C.. Urea-Assisted Synthesis of Nanospherical and Plate-Like Magnesium Oxides for Efficient Removal of Reactive Dye Wastes. Journal of Nanomaterials. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1188497

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1188497