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Efficient fluoride removal using nano MgO: mechanisms and performance evaluation.

BoWen Liu¹, Li Ai¹, Ming Lei²

¹Key Laboratory of Chemistry and Engineering of Forest Products, State Ethnic Affairs Commission, Guangxi Key Laboratory of Chemistry and Engineering of Forest Products/Guangxi Collaborative Innovation Center for Chemistry and Engineering of Forest Products, Guangxi Minzu University, Nanning, 530006, China.

Environmental Science and Pollution Research International

|March 28, 2024

Summary

This summary is machine-generated.

Highly efficient nano magnesium oxide (MgO) was synthesized for fluoride removal. This enhanced adsorbent shows a high adsorption capacity, offering a promising solution for water purification.

Keywords:

Adsorption CTMAB Fluoride Mechanisms Nano MgO

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Area of Science:

Environmental Science
Materials Science
Chemistry

Background:

Fluoride contamination in water poses significant health risks.
Developing efficient and cost-effective adsorbents for fluoride removal is crucial for water treatment.

Purpose of the Study:

To synthesize highly efficient nano magnesium oxide (MgO) for fluoride removal.
To investigate the adsorption performance and mechanisms of nano MgO for defluorination.

Main Methods:

Hydrothermal precipitation method using Hexadecyl trimethyl ammonium bromide (CTMAB) as a surfactant.
Characterization using XRD, SEM, XPS, and FTIR.
Adsorption experiments to determine kinetics, isotherm models, and effect of pH and competing ions.

Main Results:

Nano MgO synthesized with CTMAB exhibited enhanced adsorption capacity due to inhibited precursor crystal growth and improved dispersion.
Adsorption behavior followed pseudo-second-order kinetics and the Langmuir isotherm model.
Maximum adsorption capacity of 122.47 mg/g was achieved.
Understanding of defluorination mechanisms was enhanced through characterization and experimental analysis.

Conclusions:

Nano MgO synthesized via hydrothermal precipitation with CTMAB is a highly effective adsorbent for fluoride removal.
The study provides insights into the adsorption mechanisms and factors influencing performance in practical applications.
This research contributes to developing advanced materials for water purification and addressing fluoride contamination.