Open AccessEffect of magnetite on alginate-based hydrogel beads composite bio-sorbent for copper removal
Author(s) -
Aida Syafiqah Abdul Rahman,
Ahmad Naim Ahmad Yahaya,
Nor Afifah Khalil,
Ahmad Noor Syimir Fizal,
Mohd Aizuddin Shahmi A'zim,
Md. Sohrab Hossain,
Muzafar Zulkifli
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1195/1/012052
Subject(s) - sorbent , magnetite , composite number , chitosan , adsorption , chemical engineering , copper , materials science , carboxymethyl cellulose , chemistry , chromatography , composite material , metallurgy , organic chemistry , sodium , engineering
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.