Amrulloh, Hanif and Kurniawan, Yehezkiel Steven and Ichsan, Chairul and Jelita, Jelita and Simanjuntak, Wasinton and Situmeang, Rudy Tahan Mangapul and Krisbiantoro, Philip Anggo (2021) Highly efficient removal of Pb(II) and Cd(II) ions using magnesium hydroxide nanostructure prepared from seawater bittern by electrochemical method. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 631. ISSN 0927-7757
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In this work, we successfully synthesized magnesium hydroxide (Mg(OH)(2)) nanostructure from seawater bittern by electrochemical method. The synthesis was performed at room temperature employing graphite and nickel as anode and cathode, respectively, without any pH adjustment. The Mg(OH)(2) nanomaterial was obtained in platelet form with length and thickness dimensions of 100-200 and 30-50 nm, respectively. From the surface analysis, the as-synthesized Mg(OH)(2) nanomaterial has a large surface area (193.7 m(2) g(-1)) and high pore volume (0.563 cm(3) g(-1)), thus promising to be used as the adsorbent for the removal of Pb(II) and Cd(II) ions. Kinetics analyses show that these heavy metal ions followed the pseudo-second-order model with a rate constant (k(2p)) of 2.27 x 10(-5) and 2.52 x 10(-5) g mg(-1) min(-1) for Pb(II) and Cd(II) ions, respectively. Meanwhile, the maximum adsorption capacity (q(max)) according to the Langmuir isotherm model for Pb(II) and Cd(II) ions was estimated to be 4.03 x 10(3) and 2.98 x 10(3) mg g(-1) , respectively. These remarkable qmax values were mainly driven by a large surface area and high pore volume of the as-synthesized material. Furthermore, the material can be remarkably reused for at least six consecutive cycles without significant loss in the adsorption capacity. This work is capable of providing highly efficient removal of heavy metal ions route by utilizing a low cost and highly reusable nanostructured Mg(OH)(2) , shows promising prospects for further large-scale applications.
Item Type: | Article |
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Uncontrolled Keywords: | Magnesium hydroxide; Electrochemical synthesis; Pb(II); Cd(II); Adsorption; Wastewater treatment |
Subjects: | Q Science > QD Chemistry |
Divisions: | Faculty of Mathematics and Natural Sciences > Chemistry Department |
Depositing User: | Sri JUNANDI |
Date Deposited: | 15 Oct 2024 01:10 |
Last Modified: | 15 Oct 2024 01:10 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/9344 |