Effect of magnetite on alginate-based hydrogel beads composite bio-sorbent for copper removal

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 (Ca2+). Therefore, this work proves the potential of magnetite embedded in alginate-based composite bio-sorbent hydrogel beads for heavy metal industrial wastewater.

[1]  N. Ismail,et al.  Isolation and Characterization of Magnetic Oil Palm Empty Fruits Bunch Cellulose Nanofiber Composite as a Bio-Sorbent for Cu(II) and Cr(VI) Removal , 2020, Polymers.

[2]  A. Mautner.  Nanocellulose water treatment membranes and filters: a review , 2020 .

[3]  Yuanfeng Pan,et al.  Functionalized porous magnetic cellulose/Fe3O4 beads prepared from ionic liquid for removal of dyes from aqueous solution. , 2020, International journal of biological macromolecules.

[4]  Sheng Cui,et al.  Magnetic-controlled aerogels from carboxylated cellulose and MnFe2O4 as a novel adsorbent for removal of Cu(II) , 2019, Cellulose.

[5]  Abuliti Abudula,et al.  Nanocellulose: Extraction and application , 2018 .

[6]  Xiao–kun Ouyang,et al.  Fabrication of carboxylated cellulose nanocrystal/sodium alginate hydrogel beads for adsorption of Pb(II) from aqueous solution. , 2018, International journal of biological macromolecules.

[7]  Jie Chang,et al.  Modified nanoporous magnetic cellulose–chitosan microspheres for efficient removal of Pb(II) and methylene blue from aqueous solution , 2017, Cellulose.

[8]  Qi Zhou,et al.  Removal of methyl orange from aqueous solutions by adsorption on cellulose hydrogel assisted with Fe2O3 nanoparticles , 2017, Cellulose.

[9]  Abdul Khalil H.P.S.,et al.  A review on chitosan-cellulose blends and nanocellulose reinforced chitosan biocomposites: Properties and their applications. , 2016, Carbohydrate polymers.

[10]  S. Srebnik,et al.  Structural Characterization of Sodium Alginate and Calcium Alginate. , 2016, Biomacromolecules.

[11]  Soonjae Lee,et al.  Determining the selectivity of divalent metal cations for the carboxyl group of alginate hydrogel beads during competitive sorption. , 2015, Journal of hazardous materials.

[12]  H. Khalil,et al.  Exploration of a Chemo-Mechanical Technique for the Isolation of Nanofibrillated Cellulosic Fiber from Oil Palm Empty Fruit Bunch as a Reinforcing Agent in Composites Materials , 2014 .

[13]  Jie Chang,et al.  Nanoporous Magnetic Cellulose–Chitosan Composite Microspheres: Preparation, Characterization, and Application for Cu(II) Adsorption , 2014 .

[14]  Yuming Huang,et al.  Magnetic Chitosan–Iron(III) Hydrogel as a Fast and Reusable Adsorbent for Chromium(VI) Removal , 2013 .

[15]  S. Asman,et al.  Preparation and characterization of magnetite (Fe3O4) nanoparticles by sol-gel method , 2019 .

[16]  S. Asman,et al.  Preparation and Characterization of Magnetite ( Fe 3 O 4 ) nanoparticles By Sol-Gel Method , 2019 .

[17]  Minrui Ou,et al.  Encapsulating Fe3O4 into calcium alginate coated chitosan hydrochloride hydrogel beads for removal of Cu (II) and U (VI) from aqueous solutions. , 2018, Ecotoxicology and environmental safety.

[18]  Lina Zhang,et al.  Characterization of new sorbent constructed from Fe3O4/chitin magnetic beads for the dynamic adsorption of Cd2+ ions , 2013, Journal of Materials Science.