Removal of phosphate from environmental water has become more important to prevent eutrophication. In the present study, sorption behavior of phosphate onto magnesite was investigated under different conditions. The optimum pH of phosphate adsorption was determined to be 6.0. The adsorption capacity was found to decrease with increasing temperature, which indicates that a low temperature was beneficial for phosphate adsorption. The sorption capacity for phosphate was found to be 10.2 mg/g at an initial concentration of 100 mg/L and a dose of 2 g/L. The first order kinetic equation and Freundlich isotherm model fit the data well. Phosphate adsorption on magnesite was explained by electrostatic attraction and weak physical interactions.

• Fazhi Xie(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China, Key Laboratory of Functional Molecule Design and Interface Process, Anhui Jianzhu University, Hefei 230022, China) Corresponding author
• Tingting Hu(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Won-Chun Oh(Department of Advanced Materials & Science Engineering, Hanseo University, Chungnam 31499, Republic of Korea) †Corresponding author
• Dandan Sheng(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Haibin Li(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Xuechun Wang(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Zhiyong Xie(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Guolian Li(School of Environment and Energy Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Xuan Han(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Wenjie Xie(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)
• Mei Sun(School of Materials Science and Chemical Engineering, Anhui Jianzhu University, Hefei 230022, China)