Mechanism of enhanced nitrate reduction via micro-electrolysis at the powdered zero-valent iron/activated carbon interface

• Published in: Journal of colloid and interface science Vol. 435; no. 435; pp. 21 - 25
• Main Authors: Luo, Jinghuan, Song, Guangyu, Liu, Jianyong, Qian, Guangren, Xu, Zhi Ping
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 01.12.2014; Elsevier
• Subjects: Activated carbon; Adsorbents; aqueous solutions; Charcoal - chemistry; Chemistry; Contact; Electrolysis; Electron transfer; electrons; Exact sciences and technology; Fe0/AC composite; General and physical chemistry; hydrogen; Hydrogen-Ion Concentration; Iron; Iron - chemistry; Mass ratios; Micro-electrolysis system; Nitrate reduction; Nitrates; Nitrates - chemistry; Oxidation-Reduction; oxides; Powders - chemistry; redox potential; Reduction; Surface physical chemistry; Surface Properties; wastewater treatment; Electron transfer; Micro-electrolysis system; Fe0/AC composite; Nitrate reduction; Transition metal; Iron; Nitrates; Composite material; Mechanism; Powder; Chemical reduction; Electrolysis; Activated carbon; Fe°/AC composite; Interface; Fe/AC composite

[Display omitted] •Fe0/AC micro-electrolysis was first introduced for nitrate reduction.•Fe0/AC performed much better nitrate reduction than Fe0 only.•Fe0/AC achieved 73% of nitrate reduction efficiency even at pH 6.•Mechanism study showed AC played an important role in electron transfer. Nitrate re...