Synthesis of modified graphene/ZnO nanocomposite and its application for removal of the heavy metal ions from aqueous solutions

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Sadjadi S.S.

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Paper Information

Journal: JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY Year:2019 | Volume:40 | Issue:88 (2) Page(s): 84-91

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Title

Synthesis of modified graphene/ZnO nanocomposite and its application for removal of the heavy metal ions from aqueous solutions

Author(s)

Sadjadi S.S. | Issue Writer Certificate

Keywords

NanocompositeQ2

Modified grapheneQ1

ZnOQ1

Heavy metalsQ1

Abstract

The existence of Heavy metals in nature is one of the pressing concerns because of their toxicity and threat to human life. The aim of this study is the preparation of suitable adsorbent for heavy metal adsorption from the waste water using nanotechnology. In this work, Modified graphene/ZnO (MG/ZnO) Nanocomposite was first synthesized. The as-prepared composite was then used as an adsorbent for heavy metal removal, and its adsorption efficiency was compared with the Modified graphene and ZnO nanoparticles. Adsorption efficiency of the Modified graphene/ZnO was found higher than Modified graphene and ZnO nanoparticles. The influence of the effective parameters on the adsorption process was studied and optimized. The obtained optimum conditions were: time = 30 min, an adsorbent dosage of 0. 03 g/L, pH of 6, and T = 25˚ C. The experimental data were best described by the pseudo-second-order kinetic and Langmuir isotherm models. The obtained thermodynamic parameters indicate that the adsorption process was exothermic and spontaneous.

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APA: Copy

Sadjadi, S.S.. (2019). Synthesis of modified graphene/ZnO nanocomposite and its application for removal of the heavy metal ions from aqueous solutions. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 40(2 (88) ), 84-91. SID. https://sid.ir/paper/97809/en

Vancouver: Copy

Sadjadi S.S.. Synthesis of modified graphene/ZnO nanocomposite and its application for removal of the heavy metal ions from aqueous solutions. JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY[Internet]. 2019;40(2 (88) ):84-91. Available from: https://sid.ir/paper/97809/en

IEEE: Copy

S.S. Sadjadi, “Synthesis of modified graphene/ZnO nanocomposite and its application for removal of the heavy metal ions from aqueous solutions,” JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, vol. 40, no. 2 (88) , pp. 84–91, 2019, [Online]. Available: https://sid.ir/paper/97809/en

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