Adsorption Isotherm and Kinetic Studies Onto Removal of Reactive Yellow -14 Dye by Using Ixora Coccinea Leaf Powder

Abstract

Dyes are a complex organic compound which is used by various industries to color their products. These dyes enter the water which makes them polluted. Today, color removal from wastewater has been a matter of concern, both in the aesthetic sense and health point of view. Color removed from textile effluents on a continuous industrial scale has been given much attention in the last few years, not only because of its potential toxicity but also mainly due to its visibility problem. Ixora coccinea leaves have been used for the removal of Reactive Yellow-14 dye. The adsorption studies are undertaken in a systematic manner and effect of different parameters such as adsorbent dosage, agitation time, and pH of the aqueous solution on the removal of the dye is determined. pH results to be an interesting variable and dye removal decreases as pH increases. The adsorption-equilibrium was represented with Freundlich, Langmuir and Temkin isotherms. The adsorption process followed the first order kinetics. The results indicated that the dye, Reactive Yellow-14 strongly interacts with a Biomass-based adsorbent; the Ixora Coccinea leaf powder.

Adsorption of Reactive Yellow-14 dye from aqueous solution using Psophocarpus tetragonalobus: Characterization and Adsorption Studies

“…The present study was carried out to evaluate the adsorption capacity of dye particles by using low cost PTLP.The study reveals that the parameters like sorption dose, contact time, pH have greater influence on the adsorption of RY-14 dye on PTLP. The optimum pH was found to be 2 for RY-14 dye 11 .Freundlich, Langmuir and Temkin isotherm models were studied and it concludes that Langmuir and Temkin suitably fits experimental data and Freundlich becomes inapplicable. Hence, it can be concluded that, PTLP be a better adsorbent for removing RY-14 from aqueous solutions.…”

ADSORPTION STUDIES ON REACTIVE YELLOW-14 DYE USING THE LEAVES OF Averrhoa bilimbi

“…Scanning Electron Microscopy studies were performed to characterize the surface morphology of the biomass before adsorption. considerable heterogeneous surface with a considerable number of cavities and more pores that can act as an excellent binding site for the dye adsorption 19 .…”

“…Applications of Reactive dyes around the globe are mostly used as cellulose fibers that possess main properties, such as having different brilliant shades of colors, soluble in water, affordable cost, the formation of a chemical covalent bond with the hydroxyl group of cellulose fibers, anionic and the color of the dyes shows fastness to washing 1 .Dyes are polymers, deeply colored and biodegradability is low in nature 2 . In spite of high solubility in water, that is well beyond to the naturally occurring chromophoric groups (like azo, oxazine group, anthraquinone, formazane, metallized azo and phthalocyanine) and the bridging groups (like ether or ester covalent chemical bond) linkages are present between dyes and fibers.…”

Adsorption Isotherm Studies on Methylene Blue Dye Removal Using Naturally Available Biosorbent

“…In 1916, Irving Langmuir proposed an adsorption model that explains the variation of adsorption capacity with pressure. This model is proposed by considering the uniform adsorptive surface of the adsorbent and adsorption with equal energies 26 . Langmuir isotherm describes the active surface area with a number of adsorption sites 9 .…”