Mechanism and Application of Metal-Organic Framework in Wastewater Treatment

Abstract

In recent years, wastewater has been concerned to be a serious problem since it is harmful to the natural environment and toxic for animals and humans. Two major sources that create the pollutant is heavy metal ion and dyes in industry. Metal-organic frameworks with easily modified characteristics and high surface area, as a new material that performs well in wastewater treatment, have become excellent adsorbents for removing heavy metal ions and dyes through adsorption and catalysis processes. This review described the mechanism of waste material removals, such as π-π interactions, electrostatic interaction, and hydrogen bonds interaction. In addition, to further understand the mechanism, the factors such as pH, temperature change, and initial concentration of dyes are also mentioned in this review. Specific MOF for the removal of different hazardous materials is discussed. Finally, future research on MOF material is suggested, and prospecting further development of MOFs in wastewater treatment.