Removal of Rose Bengal Dye from Aqueous Solution using Low Cost (SA-g-PAAc) Hydrogel: Equilibrium and Kinetic Study

Abstract

Hydrogels are considered one of the most important polymers, with very low economic costs for treating dyes from an aqueous solution. In this study, sodium alginate (SA), a kind of polysaccharide, and acrylic acid is an organic compound, N-Methylene-bis-acrylamide (MBA) as a cross-linked agent, were used to prepare the hydrogel by free radical method. Studies have shown that sodium lignite-based nano-hydrogel is environmentally friendly, more cost-effective and highly efficient in remove dye in aqueous solution. The hydrogel adsorption characteristic was analyzed via scanning electron microscope (SEM). The data appear that the surface contains many pores and has a sponge-like structure. also the results showed that the hydrogel is the XRD of (SA-g-PAAc) a wide band at 2θ = 20.52 digree within the calculated d = 4.21A°. Study isotherm adsorption the highest (R²=0.9903) related to the isotherm Freundlich and Kinetic model the adsorption process of Rose Bengal dye on the SA-g-PAAc hydrogel follows a second model.

Spectrophotometric Method for the Determination of Catechol Amines Drugs in Pharmaceutical Preparations

“…The volume of NaNO 2 salt has an effective part in this reaction so it has been studied and determined the best volume, which leads to a fast and higher absorbance.The data indicated that the better volume of Sodium nitrite salt 3 mL for dopamine and adrenaline as appear in Figure 4.The better time for the reaction complete and the formation of the diazonium salt was about 5 minutes, several periods of time were studied among 2-60 minutes 12,13,17,18 as appeared in Figure 5.…”

“…Spectrophotometric methods carry out for the estima-tion of adrenaline utilizing different reagents like ferric chloride and chloranil, in the found of potassium hexa-cyanoferrate (III), or n the presence (1,10-phenanthroline). 1,4,[10][11][12][13][14][15] The values of the [(SD), and (RSD%)] for these imitate measurements of the drugs.…”

Synthesis, Characterization, and Photocatalytic Activity of Prepared MWCNT/ZnO Nanocomposite as a Model of Dyes and Pharmaceutical Compounds Removal

“…The highest and lowest values of the elements that existed in the modified MWCNT/ZnO were 76.0 and 10.8 wt.%. 20,21…”

Enhanced Drug Delivery and Wound Healing with Novel Hydrogel Nanocomposite

“…They are prevalent in various fields, including medicine, agriculture, food production, biotechnology, and pharmacy. A significant use of hydrogels is their role in controlling the release of pharmaceuticals [1][2][3][4]. The polymers, monomers, and cross-linking substances used in hydrogel production can greatly influence their physical and chemical properties.…”