Effective dechlorination of HCB by nanoscale Cu/Fe particles

A new approach to 4-chlorophenol dechlorination on monometallic copper compared to its Cu/Fe bimetallic system

“…The K obs of Cu was at least 4 times greater than that of other metals or bimetals, whether the rate calculations were based on first-order or zero-order kinetics. or Fe supported on Cu has a higher activity compared to monometallic systems, which can be explained by the indirect HDC mechanism [11,13,17]. Previous research has also shown that Cu/Fe performs better than Fe for the dechlorination reaction [26][27][28].…”

“…In contrast, its high redox potential property makes Cu a potentially good galvanic corrosion accelerator. Therefore, it is usually coupled with other metals such as Cu/Fe [17], Cu/Al [18], Cu/Ni [13] and Mg/Cu [19]. In addition, Cu can also hydrogenate and promote H 2 dissociation, but it is much weaker in comparison to Pd and Ni.…”

Efficacy of zero-valent copper (Cu0) nanoparticles and reducing agents for dechlorination of mono chloroaromatics

“…Many researchers have used mono or bimetallic (in combination) catalysts of Pt, Ni, Ag, Mg, Pd, Fe and Cu for dechlorination of chloroorganics at different reaction conditions (Liu et al, 2001;Agarwal et al, 2007;Zhu et al, 2010;Yang et al, 2011). In particular, few studies were reported on the catalytic hydrodechlorination of Cl-B, Cl-T (Lassova et al, 1998;Menini et al, 2000;Bryce-Smith and Wakefield, 2003).…”

Achieving biodegradability enhancement and acute biotoxicity removal through the treatment of pharmaceutical wastewater using a combined internal electrolysis and ultrasonic irradiation technology

“…Numerous micro-electric cells are formed between Fe with low potential and C with high potential in wastewater, in which the latter acts as an electrolyte. The electrode reactions and their consequent electrochemical redox, electrophoretic deposition, and electrochemical coagulation actions occur [8][9][10]. As a result of these reactions, the recalcitrant contaminants are reduced.…”