Tags

Type your tag names separated by a space and hit enter

Novel magnetic graphene oxide functionalized cyanopropyl nanocomposite as an adsorbent for the removal of Pb(II) ions from aqueous media: equilibrium and kinetic studies.
Environ Sci Pollut Res Int. 2018 Sep; 25(27):27122-27132.ES

Abstract

This work presents the synthesis of the novel silica-cyanopropyl functionalized magnetic graphene oxide (MGO/SiO2-CN) hybrid nanomaterial derived by sol-gel method as a cheap efficient magnetic sorbent for the removal of extremely hazardous lead ions from aqueous media. The integration of the magnetic property, the carbon substrate, and the nitrile (-C ≡ N) containing organic grafted silica matrix promoted the adsorption capability against lead ions along with its simple synthesis recovery and low cost. The prepared nanocomposite was comprehensively characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Adsorption of lead was found to be pH dependent because of the charged nature of both analyte and adsorbent surface. Adsorption experiments were conducted under the optimum conditions, and the obtained experimental data from atomic absorption spectroscopy were analyzed using the popular isothermal models namely Langmuir, Freundlich, and Dubinin-Radushkevich isotherms as well as kinetically studied and evaluated for adsorption standard free energy (E). The experimental results have demonstrated the enhanced adsorption capability of the proposed sorbent nanocomposite for lead ion removal with the maximum adsorption capacity of 111.11 mg/g at pH 5.0. The proposed mechanism of lead adsorption was mainly attributed to the complexation of lead positive ions with the grafted -C ≡ N bond. The synergistic effect of the combination of three components (i.e., the magnetic graphene oxide matrix, the triple bond containing organic moiety, and the inorganic porous silica framework) excelled the adsorption capability and proved to be a good candidate as adsorbent for the removal of lead ions.

Links

Publisher Full Text (DOI)

Authors+Show Affiliations

Gabris MA
Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran.
Jume BH
Department of chemistry, Preparatory School, Aljoup University, Aljoup Region, KSA, Sakaka, 72388, Saudi Arabia.
Rezaali M
Department of Civil and Environmental Engineering, Qom University of Technology, Qom, Iran.
Shahabuddin S
Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Petaling Jaya, Selangor Darul Ehsan, Malaysia. syeds@sunway.edu.my.
Nodeh HR
Department of Food science and Technology, Faculty of Food Industry and Agriculture, Standard Research Institute (SRI), Karaj, Iran. rnhamid2@gmail.com.
Saidur R
Research Centre for Nano-Materials and Energy Technology (RCNMET), School of Science and Technology, Sunway University, No. 5, Jalan Universiti, Bandar Sunway, 47500, Petaling Jaya, Selangor Darul Ehsan, Malaysia. Department of Engineering, Lancaster University, Lancaster, LA14YW, UK.

MeSH

AdsorptionGraphiteHydrogen-Ion ConcentrationIonsKineticsLeadMagneticsMicroscopy, Electron, ScanningNanocompositesSilicon DioxideSpectroscopy, Fourier Transform InfraredWater Pollutants, Chemical

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

30022389

Citation

Gabris, Mohammad Ali, et al. "Novel Magnetic Graphene Oxide Functionalized Cyanopropyl Nanocomposite as an Adsorbent for the Removal of Pb(II) Ions From Aqueous Media: Equilibrium and Kinetic Studies." Environmental Science and Pollution Research International, vol. 25, no. 27, 2018, pp. 27122-27132.
Gabris MA, Jume BH, Rezaali M, et al. Novel magnetic graphene oxide functionalized cyanopropyl nanocomposite as an adsorbent for the removal of Pb(II) ions from aqueous media: equilibrium and kinetic studies. Environ Sci Pollut Res Int. 2018;25(27):27122-27132.
Gabris, M. A., Jume, B. H., Rezaali, M., Shahabuddin, S., Nodeh, H. R., & Saidur, R. (2018). Novel magnetic graphene oxide functionalized cyanopropyl nanocomposite as an adsorbent for the removal of Pb(II) ions from aqueous media: equilibrium and kinetic studies. Environmental Science and Pollution Research International, 25(27), 27122-27132. https://doi.org/10.1007/s11356-018-2749-9
Gabris MA, et al. Novel Magnetic Graphene Oxide Functionalized Cyanopropyl Nanocomposite as an Adsorbent for the Removal of Pb(II) Ions From Aqueous Media: Equilibrium and Kinetic Studies. Environ Sci Pollut Res Int. 2018;25(27):27122-27132. PubMed PMID: 30022389.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Novel magnetic graphene oxide functionalized cyanopropyl nanocomposite as an adsorbent for the removal of Pb(II) ions from aqueous media: equilibrium and kinetic studies. AU - Gabris,Mohammad Ali, AU - Jume,Binta Hadi, AU - Rezaali,Mostafa, AU - Shahabuddin,Syed, AU - Nodeh,Hamid Rashidi, AU - Saidur,Rahman, Y1 - 2018/07/18/ PY - 2018/05/22/received PY - 2018/07/11/accepted PY - 2018/7/20/pubmed PY - 2019/1/1/medline PY - 2018/7/20/entrez KW - Adsorption isotherm and kinetic KW - Lead removal KW - Magnetic graphene oxide KW - Silica-cyanopropyl SP - 27122 EP - 27132 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 27 N2 - This work presents the synthesis of the novel silica-cyanopropyl functionalized magnetic graphene oxide (MGO/SiO2-CN) hybrid nanomaterial derived by sol-gel method as a cheap efficient magnetic sorbent for the removal of extremely hazardous lead ions from aqueous media. The integration of the magnetic property, the carbon substrate, and the nitrile (-C ≡ N) containing organic grafted silica matrix promoted the adsorption capability against lead ions along with its simple synthesis recovery and low cost. The prepared nanocomposite was comprehensively characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Adsorption of lead was found to be pH dependent because of the charged nature of both analyte and adsorbent surface. Adsorption experiments were conducted under the optimum conditions, and the obtained experimental data from atomic absorption spectroscopy were analyzed using the popular isothermal models namely Langmuir, Freundlich, and Dubinin-Radushkevich isotherms as well as kinetically studied and evaluated for adsorption standard free energy (E). The experimental results have demonstrated the enhanced adsorption capability of the proposed sorbent nanocomposite for lead ion removal with the maximum adsorption capacity of 111.11 mg/g at pH 5.0. The proposed mechanism of lead adsorption was mainly attributed to the complexation of lead positive ions with the grafted -C ≡ N bond. The synergistic effect of the combination of three components (i.e., the magnetic graphene oxide matrix, the triple bond containing organic moiety, and the inorganic porous silica framework) excelled the adsorption capability and proved to be a good candidate as adsorbent for the removal of lead ions. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/30022389/Novel_magnetic_graphene_oxide_functionalized_cyanopropyl_nanocomposite_as_an_adsorbent_for_the_removal_of_Pb_II__ions_from_aqueous_media:_equilibrium_and_kinetic_studies_ DB - PRIME DP - Unbound Medicine ER -