Electrochemical Degradation of Alizarin Black Dye in Aqueous Medium using Fe/Al Electrode

Abstract

This work investigates the electro-catalytic degradation of alizarinblack dye in an electrochemical cell using Fe as anode and Al as cathode. The influence of initial dye concentration, effect of salt, pH, change of temperature and effect ofchange of applied voltage have been studied in addition, the influence of semiconductor dose has studied as well. In the current work roughly total removal of 70 mg/L of dye occurred in 16 minonly. The results showedthat effect of both electrolyte concentration and applied voltage was positive if combined together and the rate of degradation in neutralmedium was the best for degradation of Alizarin black dye.

Degradation of Congo Red Dye Using Homogeneous Photo Fenton Catalyst Coupled with Oxygen Kinetics and Statistical Analysis

“…1. As a result the electron jumps from valence band to conduction band and then redox reaction take place; the products of reaction is oxygen free radical and the later attack the molecule of interest and degrade it as in the following diagram [2][3][4][5].…”

“…5 and 6 [15-17,19,20]. Table 7 shows rate constant with and without catalyst, it shows that concentration inversely affects the degradation yield in both cases this may be due to the fact that high concentration quenches photo degradation process through two ways, formation of excimer and explex and formation of new molecule as an intermediate product which absorb the light and decrease the quantum efficiency [2,4,5,21,22].…”

“…Some chemicals are harmful enough to damage internal and external body tissues and cause many other diseases including cough, asthma and respiratory track problems. The most commonly used chemicals which cause the mentioned problems to human and environment are pesticides and dyes which they are widely utilized in domestic purposes, and therefor come in contact with water body through agricultural, industrial and house holding purposes [2][3][4].…”

Oxygen Functionalized and Pristine Carbon Nanotubes Efficiency for Adsorption of Methyl Orange Dye

“…Several methods in wastewater treatment technology have been performed to degrade or remove organic contaminants from aqueous solutions including electrochemical treatment, ozonation, photo degradation, adsorption, ion exchange and evaporative recovery [5][6][7][8][9][10][11][12][13][14]. Adsorption method has been proved by researches to be an effective and one of the extensively used approaches for the removal of organic and inorganic pollutant from wastewater [15][16][17].…”

Carbon Nanotubes for Removal of Fast Green Dye

“…Various methods in wastewater treatment technology have been performed to remove or degrade organics from aqueous solutions including ozonation, electrochemical treatment, photodegradation, evaporative recovery, adsorption, ion exchange [5][6][7][8][9][10][11][12][13][14]. Adsorption has been proved to be an effective and one of the most extensively used approaches for the removal of organic and inorganic pollutant from wastewater [15][16][17].…”