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Information Journal Paper

Title

Adsorption of silica from aqueous solution onto magnesium oxide nanoparticle: kinetic and equilibrium studies

Pages

  137-152

Abstract

 Background and Objective: With increasing water pollution, serious water shortages and increased pressure to save water, recycling and reuse of water has attracted more attention in various industries. Removal of Silica from cooling water is essential for recycling and reuse of water. The aim of this study was to remove Silica from water using magnesium oxide Nanoparticles (MgO) synthesized by chemical deposition method. Materials and Methods: Synthetic Nanoparticles were successfully determined using field emission scanning electron microscopy (FE-SEM), Fourier transform infrared (FTIR) and X-ray diffraction (XRD). To determine the optimal Adsorption conditions the batch system, the effect of important parameters such as pH (2-8), contact time (0-150 min), initial concentration of Silica solution (50-1000 mg/L), adsorbent amount (0. 01-0. 14 g) and temperature (25-60 ˚ C) were studied. Results: Under optimal conditions, an almost removal of 200 mg/L Silica solution was achieved in 60 min reaction time. Equilibrium data were analyzed using the Langmuir and Freundlich isotherms. The Adsorption process can be well described by the Langmuir model, and the maximum Adsorption capacity was calculated as 75. 76 mg/g. Synthetic data were analyzed using pseudo-first-order and pseudo-second-order equations. The pseudo-second-order model showed good agreement with the obtained data (R2 = 0. 9949). Conclusion: Due to the high potential of magnesium oxide Nanoparticles in Silica removal, it can be a good candidate for the removal of Silica and industrial wasteWater treatment.

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    APA: Copy

    Shahbodaghi, Nahied, Afzali, Daryoush, & FAYAZI, MARYAM. (2022). Adsorption of silica from aqueous solution onto magnesium oxide nanoparticle: kinetic and equilibrium studies. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, 15(1 ), 137-152. SID. https://sid.ir/paper/958324/en

    Vancouver: Copy

    Shahbodaghi Nahied, Afzali Daryoush, FAYAZI MARYAM. Adsorption of silica from aqueous solution onto magnesium oxide nanoparticle: kinetic and equilibrium studies. IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT[Internet]. 2022;15(1 ):137-152. Available from: https://sid.ir/paper/958324/en

    IEEE: Copy

    Nahied Shahbodaghi, Daryoush Afzali, and MARYAM FAYAZI, “Adsorption of silica from aqueous solution onto magnesium oxide nanoparticle: kinetic and equilibrium studies,” IRANIAN JOURNAL OF HEALTH AND ENVIRONMENT, vol. 15, no. 1 , pp. 137–152, 2022, [Online]. Available: https://sid.ir/paper/958324/en

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