Effective Removal of Phosphate from Aqueous by Graphene Oxide Decorated with $$\varvec{\upalpha }\text {-}\hbox {Fe}_{2}\hbox {O}_{3}$$ α - Fe 2 O 3 : Kinetic, Isotherm, Thermodynamic and Mechanism Study
作者： Lihua Bai , Luyao Yuan , Yi Ji , Hongxia Yan
DOI: 10.1007/S13369-018-3124-3
关键词:
摘要: The excessive phosphate discharged into the environment has damaged ecosystem seriously. In this work, a kind of 3D adsorbents, $$\upalpha \hbox {-Fe}_{2}\hbox {O}_{3}$$ decorated graphene oxide $$(\hbox {GO--Fe}_{2}\hbox {O}_{3})$$ , was synthesized to deal with phosphate-polluted water. adsorption capacity $$\hbox reached $$93.28\,\hbox { mg\,g}^{-1}$$ in $$50\,\hbox mg\, L}^{-1}$$ solution at pH 6.0 and temperature 298 K, efficiency is very stable between range 2.0–10.5 293–333 K. progress rapid, equilibrium within 5 min. behavior fitted Langmuir model, kinetic pseudo-second-order model. Ion exchange electrostatic attraction are main reactions process. Physical chemical both rapid; thus, it good choice water by .
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