Response Surface Modeling of Metal-Organic Framework MIL-53(Al) as an Adsorptive Removal of Phosphate from Aqueous Solution

Sripansuang Tangsuwanjinda^1*

¹Electronic, 明志科技大學, New Taipei City, Taiwan

* Presenter:Sripansuang Tangsuwanjinda, email:M07158029@mail2.mcut.edu.tw

Phosphate contaminants in water that are derived from overuse of fertilizers are increasingly serious in varies place include agriculture, industrial, and living things. All of them are enormous origins for water pollutions and even the most widespread environmental eutrophication. An aluminum terephthalate (MIL-53(Al)), one of the metal organic framework (MOFs), was used in this study to adsorb the phosphate in aqueous solution. MIL-53(Al) revealed the good efficiency for purification of dilute contain out from water because of its resistant to hydrolysis. FESEM (Field-emission Scanning Electron Microscope) present the nanoparticles of MIL-53(Al) before and after operation well. X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) spectroscopy present the structure property of MIL-53(Al) before and after adsorption of phosphate which shows high absorbability and prospects for environmental applications. The synthetic solutions with varies concentration were performed to realize the kinetic and isotherm models which elucidate the sorption and monolayer behavior mechanisms between phosphate and MIL-53(Al) more detail.

Keywords: metal-organic framework, phosphate contaminant, absorption kinetic, nano particle absorbent, absorption isotherm