Functionalization of gum arabic including glycoprotein and polysaccharides for the removal of boron. (1st December 2019)

• Record Type: Journal Article
• Authors: Duran, H.; Yavuz, E.; Sismanoglu, T.; Senkal, B.F.
• Is Part Of: Carbohydrate polymers. Volume 225(2019)
• Publication Date: 2019-12-01
• Subjects: Gum Arabic -- Hollow silica spheres -- Boron removal -- Epoxy modified sorbent; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2019.115139
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: A new environmentally friendly hybrid material has been synthesized. HSGUM can capture boron from aqueous solution rapidly with very high capacity. The hybrid material is regenerable and re-used for boron sorption. Abstract: Bio hybrid material supported multifunctional (hydroxyproline with enriched glycoprotein) has been shown to be efficient in chelation with boron and can be used for removal of boron at ppm levels. Gum arabic (GUM) is biodegradable and nontoxic biopolymer. GUM includes GA-GP-GA-glycoprotein and polysaccharides. Hollow silica spheres (HSS) gain increasing attention, thanks to low density, high specific surface and good adsorption performance. In this study, sol-gel process was used for the preparation of HSS and was modified with epoxy group. The resulted epoxidized HSS (HSEPC) was reacted with GUM to obtain a poly saccharide derivative functional hollow silica sphere (HSGUM) for removal of boron. Characterizations of HSGUM were performed by FT-IR and SEM techniques. Adsorption isotherm and kinetic models were also applied to adsorption of boron onto HSGUM. The resulting sorbent HSGUM has been demonstrated efficient and the maximum boron sorption capacity at monolayer coverage (qmax ) was found as average 4.10 mmol g −1 .