Repo Dosen ULM

Selective adsorption of Pb(II) ion on amine-rich functionalized rice husk magnetic nanoparticle biocomposites in aqueous solution

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dc.contributor.author Nata, Iryanti
dc.contributor.author Wicakso, Doni
dc.contributor.author Mirwan, Agus
dc.contributor.author Irawan, Chairul
dc.contributor.author Ramadhani, Divany
dc.contributor.author Ursulla, Ursulla
dc.date.accessioned 2023-04-06T04:42:10Z
dc.date.available 2023-04-06T04:42:10Z
dc.date.issued 2020-08-20
dc.identifier.issn 2213-3437
dc.identifier.uri https://repo-dosen.ulm.ac.id//handle/123456789/27970
dc.description.abstract Amine group on rice husk magnetic nanoparticle bicomposites (RHB-MH) was synthesized by one-step sol vothermal method. The new finding of biocomposites is utilization of rice husk cellulose as a support which produced high amine content on surface of magnetic nanoparticle (MNPs). The rice husk cellulose (RH-D), iron (III) chloride hexahydrate, Na-acetate anhydrate were mixed in ethylene glycol, then kept at ± 200 °C for 6 h. Amine modified MNPs was constructed by addition of 1,6-hexanediamine in mixture before the reaction. The MNPs was growth on surface of RH-D then formed biocomposites. The Fe content about 93.11 % and the magnetic nanoparticle structure was proved by specific peaks at 36°, 43°, 63° for magnetite. The magnetic saturation value of biocomposites about 16.4 emu/g. The thermal stability of biocomposites showed up to 200 oC with less than 10 % of mass degradation. Higher amine content of 12.3 mmol/g on biocomposites was achieved after addition of 7 mL of 1,6-hexanediamine (RBH-MH2). Amine functional group on biocomposites exhibited the resonance bands at 1645 cm−1 and 1050 cm−1. The adsorption of Pb(II) ion on RBH-MH2 follows pseudo 1 st order kinetic and well-fitted by Langmuir adsorption isotherm model which have maximum capacity of 680.19 mg/g at room temperature and pHe∼5. The RBH-MH2 have significant effect to capture Pb(II) ion due to electrostatic interaction and showed 3.6-fold higher adsorption capacity than rice husk biocomposites without modification. The amine-rich on biocomposites does not only provide an easy retrievable from aqueous solution but also potential candidate for effective green adsorbent. en_US
dc.description.sponsorship Ministry of Research, Technology and Higher Education, Republic of Indonesia (contract No. 123.9/UN8.2/PP/2019) en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries 8;104339
dc.subject Adsorption, Pb(II) ion, Magnetic nanoparticl,e Rice husk, Solvothermal en_US
dc.title Selective adsorption of Pb(II) ion on amine-rich functionalized rice husk magnetic nanoparticle biocomposites in aqueous solution en_US
dc.type Article en_US


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