Electrochemical Degradation of Reactive Yellow 160 Dye in Real Wastewater Using C/PbO₂‐, Pb + Sn/PbO₂ + SnO₂‐, and Pb/PbO₂ Modified Electrodes

Abstract

ree modi�ed electrodes (C/PbO 2 , Pb + Sn/PbO 2 + SnO 2 , and Pb/PbO 2 ) were prepared by electrodeposition and used as anodes for electrochemical degradation of Reactive Yellow 160 (RY160) dye in aqueous solution. Different operating conditions and factors affecting the treatment process including current density, temperature, initial concentration of (RY160), pH, conductive electrolyte and time of electrolysis were studied and optimized. e best degradation occurred in the presence of NaCl (4 g L −1 ) as a conductive electrolyte. Aer 15 min, nearly complete degradation of RY160 was achieved (97.9%, 96.65 and 95.35% using C/PbO 2 , Pb+Sn/PbO 2 + SnO 2 , and Pb/PbO 2 electrodes, resp.) at pH 7.13. Higher degradation efficiency was obtained at 25 ∘ C. e optimum current density for the degradation of RY160 on all electrodes was 50 mA cm −2 . e prepared C/PbO 2 , Pb+Sn/PbO 2 + SnO 2 and Pb/PbO 2 electrodes were found to be highly efficient in the treatment of effluents obtained from dyeing factory which contain RY160 dye with very slight matrix effect.

Electrochemical treatment of trypan blue synthetic wastewater and its degradation pathway

“…On electrolysis of the solution for 60 min, showed a 100 %, 42 %, 27 %, 15 % color removal in presence of Cl -, CO 3 2-, NO 3 -, SO 4 2ions respectively. Similar trend was observed by Fornazari et al [27] in the electrochemical degradation of phenol-formaldehyde mixture [27,28]. The presence of Clions is not only essential for the color removal but also its in situ generated oxidants cleave the TB bonds.…”

Adsorption of Methyl Violet Dye, A Textile Industry Effluent onto Montmorillonite—Batch Study

“…Hence, the MV treatment is of very importance. Many treatment methods are available in the literature in dye removal such as electrocoagulation, [9,10] electrooxidation, [11] photooxidation, [12,13] chemical coagulation, [14] adsorption, [15,16] etc. Adsorption is widely used in removal of dye effluents from aqueous ambient using clay-type adsorbents such as bentonite, [17] kaolinite, [18] montmorillonite, [19,20] perlite, [21] sepiolite, [22] zeolite, [23] and vermiculite.…”

Electrocoagulation (Ec) of Styrene Butadiene Rubber from Aqueous Solution using different Electrodes

“…The isotherm describes the multilayer adsorption with a heterogeneous energetic distribution of active sites, accomplished by interaction between adsorbed molecules [34]. The linearized and logarithmic expression of the Freundlich model is [35].…”

“…It is well known that the Langmuir equation is intended for a homogeneous surface [34] . The linearized form of Langmuir adsorption isotherm model is [36].…”