Effect of magnetite on alginate-based hydrogel beads composite bio-sorbent for copper removal. Issue 1 (October 2021)

• Record Type: Journal Article
• Authors: Rahman, A S A; Yahaya, A N A; Khalil, N A; Fizal, A N S; A'zim, M A S; Hossain, M S; Zulkifli, M
• Is Part Of: IOP conference series. Volume 1195:Issue 1(2021)
• Publication Date: 2021-10
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1195/1/012052
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: A composite magnetite alginate-based bio-sorbent in hydrogel beads form as adsorbent for copper ion removal was prepared through this work. Two types of composite bio-sorbents which are cellulose-magnetite-alginate (CeMA) and chitosan-magnetite-alginate (CMA) hydrogel beads were synthesized by the physical cross-linking method. Ratios of magnetite iron oxide 0, 0.1, and 1.0 were used during the synthesis of bio-sorbents to observe the effect of magnetite ratios on copper ion removals. Based on the performance of bio-sorbents on copper removals, 24.6% of the highest percentage copper removal was achieved by CMA with a magnetite ratio of 0.1 at an adsorption equilibrium time of 24 hours and initial concentration of 100 mg/L. In addition, through this work, magnetite embedded bio-sorbent with the simple synthesized method was done by utilizing the capability of alginate to instantaneously form hydrogel beads upon addition into calcium chloride (Ca 2+ ). Therefore, this work proves the potential of magnetite embedded in alginate-based composite bio-sorbent hydrogel beads for heavy metal industrial wastewater.