Ligand effects on nitrate reduction by zero-valent iron: Role of surface complexation

• Published in: Water research (Oxford) Vol. 114; pp. 218 - 227
• Main Authors: Song, Xiaojie, Chen, Zhihao, Wang, Xiaomeng, Zhang, Shujuan
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.05.2017
• Subjects: acetates; Acetylacetone; coatings; EDTA (chelating agent); formates; Iron; Ligand; Ligands; Nitrate; nitrate reduction; Nitrates; Nitrogen Oxides; oxalates; Oxidation-Reduction; Phosphates; protons; redox potential; remediation; Zero-valent iron; Nitrate; Acetylacetone; Ligand; Zero-valent iron

Surface passivation is a key limiting factor in the application of zero-valent iron (ZVI) for water remediation. Addition of ligands is a useful approach to overcome this issue. In this work, a small amount of acetylacetone (AA) (0.5 mM) was found highly efficient to enhance the reduction of nitrate...