Synthesis of novel nanocomposite Fe3O4/ZrO2/chitosan and its application for removal of nitrate and phosphate

Applied Surface Science, Volume 284, 1 November 2013, Pages 942-949.
Hualin Jiang, Pinghua Chen, Shenglian Luo, Xinman Tu, Qun Cao, Meng Shu.

 

Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang 330063, PR China.

Advanced Laboratory of POPs Cyclic Utilization and Control, Nanchang 330063, PR China &

College of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, PR China.

 

Abstract

A novel nanocomposite with a BET surface area of 212.9 m2/g was synthesized from chitosan and Fe3O4/ZrO2 using an inexpensive protocol at mild condition. The Fe3O4/ZrO2/chitosan composite has the ability to adsorb both nitrate and phosphate. The maximum adsorption amount of nitrate and phosphate is 89.3 mg/g and 26.5 mg P/g, respectively. The adsorption process fits well to the pseudo-first-order kinetic rate model, and the mechanism involves simultaneous adsorption and intra-particle diffusion. The experimental results suggest that the composite is a promising adsorbent for treating water that is contaminated with nutrients.

 

 

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