Keywords: low cost activated carbon, rice husk, basic violet 10, dye removal, photocatalytic degradation, titanium dioxide, TiO2, co–catalysts, adsorption, photodegradation, kinetics, water pollution, wastewater treatment
A comparative study on removal of basic violet 10 by adsorption and photocatalytic degradation using low cost activated carbon
This study compare the adsorption and photodegradation methods for the removal of basic violet 10 (BV) dye. Adsorption studies were carried out using activated carbon prepared from rice husk (RC). The photocatalytic degradation reactions using RC + TiO2 mixture were carried out under UV irradiation. The influence of operating parameters governing dye removal such as contact time, pH and effect of dose, adsorption isotherms and kinetics were investigated. The negative ΔG° values revealed that the dye removal process is spontaneous. The percentages of dye removal using TiO2/UV, RC and RC + TiO2/UV are 35.3%, 49.8% and 61.5% respectively.